Relevant bibliographies by topics / Characteristic estimation

Academic literature on the topic 'Characteristic estimation'

Author: Grafiati
Published: 10 March 2023

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Contents

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Characteristic estimation.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Characteristic estimation"

1

SINGH, RAJESH. "Variance Estimation Using Quality Characteristic." Mathematical Journal of Interdisciplinary Sciences 5, no. 2 (March 5, 2017): 143–49. http://dx.doi.org/10.15415/mjis.2017.52011.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Fredlund, Delwyn G., Daichao Sheng, and Jidong Zhao. "Estimation of soil suction from the soil-water characteristic curve." Canadian Geotechnical Journal 48, no. 2 (February 2011): 186–98. http://dx.doi.org/10.1139/t10-060.

Full text
Abstract:
Soil-water characteristic curves (SWCCs) are routinely used for the estimation of unsaturated soil property functions (e.g., permeability functions, water storage functions, shear strength functions, and thermal property functions). This paper examines the possibility of using the SWCC for the estimation of in situ soil suction. The paper focuses on the limitations of estimating soil suctions from the SWCC and also suggests a context under which soil suction estimations should be used. The potential range of estimated suction values is known to be large because of hysteresis between drying and wetting SWCCs. For this, and other reasons, the estimation of in situ suctions from the SWCC has been discouraged. However, a framework is suggested in this paper for estimating the median value for in situ soil suction along with a likely range of soil suction values (i.e., maximum and minimum values). The percentage error in the estimation of soil suction from the SWCC is shown to be lowest for sand soils and highest for clay soils.
APA, Harvard, Vancouver, ISO, and other styles
3

Utami, Bernadhita Herindri Samodera, Dwi Herinanto, and Miswan Gumanti. "Characteristic Estimator of Interval-Censored Binomial Data and Its Application." Jurnal Varian 6, no. 1 (November 13, 2022): 1–10. http://dx.doi.org/10.30812/varian.v6i1.1847.

Full text
Abstract:
This study aims to determine the estimation of interval-censored data with a special distribution, namely the binomial distribution. This research is using quantitative methods, the steps are estimating parameters on the interval-censored binomial distribution using the Maximum Likelihood Estimation method. The second step shows the properties of the estimator on the interval-censored binomial distribution. The last is to determine the parameter estimation of interval-censored data from the binomial distribution in survival analysis and provide an example of research containing interval-censored observations which will then be used as a case study. The results showed that the estimator is a sufficient statistic, meaning that it is unbiased. The case study was conducted using interval-censored data regarding the study of ninety-four breast cancer patients to see which group survived longer (survival value) of the two treatments, namely patients who underwent radiotherapy alone and patients who underwent radiotherapy followed by adjuvant chemotherapy.
APA, Harvard, Vancouver, ISO, and other styles
4

Carrasco, Marine, and Rachidi Kotchoni. "EFFICIENT ESTIMATION USING THE CHARACTERISTIC FUNCTION." Econometric Theory 33, no. 2 (February 22, 2016): 479–526. http://dx.doi.org/10.1017/s0266466616000025.

Full text
Abstract:
The method of moments procedure proposed by Carrasco and Florens (2000) permits full exploitation of the information contained in the characteristic function and yields an estimator which is asymptotically as efficient as the maximum likelihood estimator. However, this estimation procedure depends on a regularization or tuning parameterαthat needs to be selected. The aim of the present paper is to provide a way to optimally chooseαby minimizing the approximate mean square error (AMSE) of the estimator. Following an approach similar to that of Donald and Newey (2001), we derive a higher-order expansion of the estimator from which we characterize the finite sample dependence of the AMSE onα. We propose to select the regularization parameter by minimizing an estimate of the AMSE. We show that this procedure delivers a consistent estimator ofα. Moreover, the data-driven selection of the regularization parameter preserves the consistency, asymptotic normality, and efficiency of the CGMM estimator. Simulation experiments based on a CIR model show the relevance of the proposed approach.
APA, Harvard, Vancouver, ISO, and other styles
5

Derechennik, Stanislav S., and Viktar V. Tur. "Adaptive Estimation of the In Situ Characteristic Concrete Strength." Solid State Phenomena 292 (June 2019): 257–63. http://dx.doi.org/10.4028/www.scientific.net/ssp.292.257.

Full text
Abstract:
For calculation of existing concrete structures on the basis of the partial factor format, the main representative value is the actual in-situ characteristic value of the concrete strength. When samples are tested, the concrete in-situ strength of the structure shall be determined, statistically if possible, from the test results. In accordance with EN 1990 the 5% percentile value is calculated on the basis of a unilaterally limited constant confidence level. It was found the in some case, estimation of the in-situ characteristic concrete strength taking a constant confidence level does not allow to adequately assess the reliability of the existing structures. A new estimator based on non-parametric statistical method was proposed for estimating of the in-situ characteristic concrete strength with a given arbitrary confidence level. The procedure that was proposed allows one to re-establish of the estimator pdf even with a very limited sample size. It is established, that the choice of the confidence level of the estimator should be based on the average reliability of the structure.
APA, Harvard, Vancouver, ISO, and other styles
6

Kärkkäinnen, Salme, Antti Penttinen, Nikolai G. Ushakov, and Alexandra P. Ushakova. "Estimation of orientation characteristic of fibrous material." Advances in Applied Probability 33, no. 3 (September 2001): 559–75. http://dx.doi.org/10.1239/aap/1005091352.

Full text
Abstract:
A new statistical method for estimating the orientation distribution of fibres in a fibre process is suggested where the process is observed in the form of a degraded digital greyscale image. The method is based on line transect sampling of the image in a few fixed directions. A well-known method based on stereology is available if the intersections between the transects and fibres can be counted. We extend this to the case where, instead of the intersection points, only scaled variograms of grey levels along the transects are observed. The nonlinear estimation equations for a parametric orientation distribution as well as a numerical algorithm are given. The method is illustrated by a real-world example and simulated examples where the elliptic orientation distribution is applied. In its simplicity, the new approach is intended for industrial on-line estimation of fibre orientation in disordered fibrous materials.
APA, Harvard, Vancouver, ISO, and other styles
7

Knight, John L., and Jun Yu. "EMPIRICAL CHARACTERISTIC FUNCTION IN TIME SERIES ESTIMATION." Econometric Theory 18, no. 3 (May 15, 2002): 691–721. http://dx.doi.org/10.1017/s026646660218306x.

Full text
Abstract:
Because the empirical characteristic function (ECF) is the Fourier transform of the empirical distribution function, it retains all the information in the sample but can overcome difficulties arising from the likelihood. This paper discusses an estimation method via the ECF for strictly stationary processes. Under some regularity conditions, the resulting estimators are shown to be consistent and asymptotically normal. The method is applied to estimate the stable autoregressive moving average (ARMA) models. For the general stable ARMA model for which the maximum likelihood approach is not feasible, Monte Carlo evidence shows that the ECF method is a viable estimation method for all the parameters of interest. For the Gaussian ARMA model, a particular stable ARMA model, the optimal weight functions and estimating equations are given. Monte Carlo studies highlight the finite sample performances of the ECF method relative to the exact and conditional maximum likelihood methods.
APA, Harvard, Vancouver, ISO, and other styles
8

Kärkkäinnen, Salme, Antti Penttinen, Nikolai G. Ushakov, and Alexandra P. Ushakova. "Estimation of orientation characteristic of fibrous material." Advances in Applied Probability 33, no. 03 (September 2001): 559–75. http://dx.doi.org/10.1017/s0001867800010995.

Full text
Abstract:
A new statistical method for estimating the orientation distribution of fibres in a fibre process is suggested where the process is observed in the form of a degraded digital greyscale image. The method is based on line transect sampling of the image in a few fixed directions. A well-known method based on stereology is available if the intersections between the transects and fibres can be counted. We extend this to the case where, instead of the intersection points, only scaled variograms of grey levels along the transects are observed. The nonlinear estimation equations for a parametric orientation distribution as well as a numerical algorithm are given. The method is illustrated by a real-world example and simulated examples where the elliptic orientation distribution is applied. In its simplicity, the new approach is intended for industrial on-line estimation of fibre orientation in disordered fibrous materials.
APA, Harvard, Vancouver, ISO, and other styles
9

Cadiou, J. C., and A. El Hadri. "Transversal tyre road characteristic estimation." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 218, no. 10 (October 2004): 1099–110. http://dx.doi.org/10.1177/095440700421801004.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

TAKASE, Kazuto, and Naoya HARA. "ESTIMATION OF VISUAL CHARACTERISTIC VALUES BASED ON BCD LUMINANCE ESTIMATION METHODS REFLECTING OPTICAL CHARACTERISTICS." Journal of Environmental Engineering (Transactions of AIJ) 88, no. 805 (March 1, 2023): 148–53. http://dx.doi.org/10.3130/aije.88.148.

Full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Characteristic estimation"

1

Weber, John Baltzer. "Spread spectrum signal characteristic estimation using exponential averaging and an ad-hoc chip rate estimator." Monterey, Calif. : Naval Postgraduate School, 2007. http://bosun.nps.edu/uhtbin/hyperion.exe/07Mar%5FWeber%5FPhD.pdf.

Full text
Abstract:
Dissertation (Ph.D. in Electrical Engineering)--Naval Postgraduate School, March 2007.
Dissertation Advisor(s): Clark Robertson. "March 2007." Includes bibliographical references (p. 125-130). Also available in print.
APA, Harvard, Vancouver, ISO, and other styles
2

Herath, Dushanthi N. "Nonparametric Estimation of Receiver Operating Characteristic Surfaces Via Bernstein Polynomials." Thesis, University of North Texas, 2012. https://digital.library.unt.edu/ark:/67531/metadc177212/.

Full text
Abstract:
Receiver operating characteristic (ROC) analysis is one of the most widely used methods in evaluating the accuracy of a classification method. It is used in many areas of decision making such as radiology, cardiology, machine learning as well as many other areas of medical sciences. The dissertation proposes a novel nonparametric estimation method of the ROC surface for the three-class classification problem via Bernstein polynomials. The proposed ROC surface estimator is shown to be uniformly consistent for estimating the true ROC surface. In addition, it is shown that the map from which the proposed estimator is constructed is Hadamard differentiable. The proposed ROC surface estimator is also demonstrated to lead to the explicit expression for the estimated volume under the ROC surface . Moreover, the exact mean squared error of the volume estimator is derived and some related results for the mean integrated squared error are also obtained. To assess the performance and accuracy of the proposed ROC and volume estimators, Monte-Carlo simulations are conducted. Finally, the method is applied to the analysis of two real data sets.
APA, Harvard, Vancouver, ISO, and other styles
3

Esterhuizen, Gerhard. "Generalised density function estimation using moments and the characteristic function." Thesis, Link to the online version, 2003. http://hdl.handle.net/10019.1/1001.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

BORGSTROM, MARK CRAIG. "ESTIMATION OF RECEIVER OPERATING CHARACTERISTIC (ROC) CURVE PARAMETERS: SMALL SAMPLE PROPERTIES OF ESTIMATORS." Diss., The University of Arizona, 1987. http://hdl.handle.net/10150/184127.

Full text
Abstract:
When studying detection systems, parameters associated with the Receiver Operating Characteristic (ROC) curve are often estimated to assess system performance. In some applied settings it is often not possible to test the detection system with large numbers of stimuli. The resulting small sample statistics many have undesirable properties. The characteristics of these small sample ROC estimators were examined in a Monte Carlo simulation. Three popular ROC parameters were chosen for study. One of the parameters was a single parameter index of system performance, Area under the ROC curve. The other parameters, ROC intercept and slope, were considered as a pair. ROC intercept and slope were varied along with sample size and points on the certainty rating scale to form a four way factorial design. Several types of estimators were examined. For the parameter, Area under the curve, Maximum Likelihood (ML), three types of Least Squares (LS), and Distribution Free (DF) estimators were considered. Except for the DF estimator, the same estimators were considered for the parameters, intercept and slope. These estimators were compared with respect to three characteristics: bias, efficiency, and consistency. For Area under the curve, the ML estimator was the least biased. The DF estimator was the most efficient, and all the estimators except the DF estimator appeared to be consistent. For intercept and slope the LS estimator that minimized vertical error of the points from the ROC curve (line) was the least biased for both estimators. This LS estimator was also the most efficient. This estimator along with the ML estimator also appeared to be the most consistent. The other two estimators had no significant trend toward consistency. These results along with other findings, illustrate that different estimators may be "best" for different sample sizes and for different parameters. Therefore, researchers should carefully consider the characteristics of ROC estimators before using them as indices of system performance.
APA, Harvard, Vancouver, ISO, and other styles
5

Buhr, Dianne C. "Variability in the estimation of item option characteristic curves for the multiple-category scoring model." Gainesville, FL, 1989. http://www.archive.org/details/variabilityinest00buhr.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Tseng, Hsin-Wu, Jiahua Fan, and Matthew A. Kupinski. "Assessing computed tomography image quality for combined detection and estimation tasks." SPIE-SOC PHOTO-OPTICAL INSTRUMENTATION ENGINEERS, 2017. http://hdl.handle.net/10150/626451.

Full text
Abstract:
Maintaining or even improving image quality while lowering patient dose is always the desire in clinical computed tomography (CT) imaging. Iterative reconstruction (IR) algorithms have been designed to allow for a reduced dose while maintaining or even improving an image. However, we have previously shown that the dose-saving capabilities allowed with IR are different for different clinical tasks. The channelized scanning linear observer (CSLO) was applied to study clinical tasks that combine detection and estimation when assessing CT image data. The purpose of this work is to illustrate the importance of task complexity when assessing dose savings and to move toward more realistic tasks when performing these types of studies. Human-observer validation of these methods will take place in a future publication. Low-contrast objects embedded in body-size phantoms were imaged multiple times and reconstructed by filtered back projection (FBP) and an IR algorithm. The task was to detect, localize, and estimate the size and contrast of low-contrast objects in the phantom. Independent signal-present and signal-absent regions of interest cropped from images were channelized by the dense-difference of Gauss channels for CSLO training and testing. Estimation receiver operating characteristic (EROC) curves and the areas under EROC curves (EAUC) were calculated by CSLO as the figure of merit. The one-shot method was used to compute the variance of the EAUC values. Results suggest that the IR algorithm studied in this work could efficiently reduce the dose by similar to 50% while maintaining an image quality comparable to conventional FBP reconstruction warranting further investigation using real patient data. (C) The Authors. Published by SPIE under a Creative Commons Attribution 3.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.
APA, Harvard, Vancouver, ISO, and other styles
7

Petzschner, Frederike Hermi [Verfasser], and Stefan [Akademischer Betreuer] Glasauer. "Magnitude estimation in humans : a bayesian approach to characteristic behavior in path integration / Frederike Hermi Petzschner. Betreuer: Stefan Glasauer." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2013. http://d-nb.info/1033752088/34.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Ahmadiyan, Sara, and Daniel Mehari. "Estimation of the characteristic in-situ compressive strength class of concrete structures - A case study of the Skuru bridge." Thesis, KTH, Bro- och stålbyggnad, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-296706.

Full text
Abstract:
It is inevitable that Structures become older and their intended use changes or the structuralcodes regulations change. In some regions the damage from seismic activities is a possibility.It becomes, therefore crucial to assess the structural capacity of such structures. The purposeof this study is to assess the different methods used for testing and estimating thecharacteristic in-situ compressive strength which is the most vital parameter required instructural assessment. The focus of the study is for existing structures where there is no prior knowledge about theconcrete strength. This study first investigates and evaluates the merits and demerits of thesemethods for investigation of the condition of in-situ compressive strength of concrete inexisting structures. A case study of the Skuru bridge that was built in 1914 was utilized forthis study. The study is based on information of the construction data and some results fromprior investigation performed by the company COWI. Afterwards, non-destructive tests werecarried out with the UPV and Rebound hammer to assess the quality of the concrete. In addition, the study assesses the use of different interpretation methods with regards toreliability and practical application. The results were interpreted in accordance to theEuropean codes, Swedish codes and other interpretation methods. The difference of theresults from the different interpretation methods are compared and evaluated for reliabilityand efficiency. The test results confirmed that the concrete consisted of the same strength class. However,the results from the different interpretation methods are dissimilar. The reason for obtainingdifferent results is because the methods depend on different methodologies. The studyshowed that some methods can sometimes overestimate the results and become unsafe forstructural assessment. On the contrary, the other methods can yield lower but safer estimates. Moreover, the use of small number of cores is evaluated for various methods. The reasons arebecause in practice, the preference is to avoid large number of cores. As a result, it isrecommended to apply care and proper judgment in selection of the methods andinterpretation of the results. It is also recommended to consider the methods with respect tothe aim of the investigation, their limitations and assumptions.
Samtida befintliga konstruktioner blir äldre och de dimensionerade lasterna ökar med tiden.Ifatt med detta ändras även kraven för större laster. Därför bör regelbundna inspektioner ochförbättringar genomföras. I vissa områden kan det även förekomma seismiska rörelser som isin tur förorsakar skador på strukturer. Av bland annat dessa anledningar är det därför viktigtatt bedöma bärförmågan för befintliga konstruktioner. Syftet med arbetet är att granska demetoder och tillvägagångssätt som finns för att kunna bedöma den karaktäristiskatryckhållfastheten för betong i befintliga konstruktioner. Tryckhållfastheten är den styrandeparametern för materialet under tillståndsbedömningar. Huvudfokuset med arbetet är att bedöma den karaktäristiska tryckhållfastheten för befintligakonstruktioner som saknar information om nuvarande tryckhållfasthet. Till en början utfördesen noggrann litteraturstudie för alla applicerbara metoder. Därefter gjordes en undersökningoch bedömning av för- och nackdelar med vardera metod. Syftet med dessa metoder är attkunna mäta den nuvarande tryckhållfastheten för befintliga konstruktioner. Efter en ingående litteraturstudie, valdes de icke-destruktiva metoderna Ultrasonic pulsevelocity och Schmidt Hammer. Dessa metoder applicerades senare på Skuru bron i syfte attutföra icke-destruktiva tester för att bedöma betongens kvalitet. Tidigarekonstruktionshandlingar samt provtagningsrapporter från Skurubron som byggdes år 1914,har legat till grund för detta arbete. Företaget COWI är ansvariga för Skurubron projektet ochhar tillhandahållit all information om bron. Vidare, redovisar detta arbete olika beräkningssätt för samtliga metoder utifrån olikastandarder och tolkningsmetoder. För varje tolkningsmetod har evalueringar och analyserutförts med avseende på tillförlitlighet och praktisk tillämpning. De redovisadeberäkningssätten har använts för att räkna fram resultat från destruktiva och icke-destruktivatester. Resultaten tolkades i enlighet med europeiska koder, svenska koder och andratolkningsmetoder. Skillnaden mellan resultaten från samtliga tolkningsmetoder jämförs ochutvärderas med hänsyn till tillförlitlighet och effektivitet. Testresultaten från UPV och Schmidt Hammer bekräftade att betongen består av sammatryckhållfasthetsklass. Resultaten från de olika tolkningsmetoderna var dock olika.Anledningen till att det blev olika resultat beror på att varje tolkningsmetod utgörs av sinaegna metodiska procedurer. Resultaten visade även att vissa standarder kan övervärderaresultaten vilket kan resultera i fel bedömning av den karaktäristiska tryckhållfastheten. Åandra sidan, resulterade vissa tolkningsmetoder i lägre men säkrare uppskattning avtryckhållfastheten. Utöver detta, utfördes det beräkningar på de destruktiva testerna utifrån olikatolkningsmetoder. Beräkningarna baserades dels på att räkna på ett mindre antal kärnor.Skälet till detta är att man i praktiken vill undvika att borra ett stort antal kärnor. Resultatenvisade att korrekt bedömning och försiktighet vid val av metod och tolkningsmetod behöverimplementeras. Det rekommenderas även att överväga metoderna med hänsyn tillutredningens ändamål, dess begränsningar och antaganden.
APA, Harvard, Vancouver, ISO, and other styles
9

Roshani, Pedram. "The Effect of Temperature on the SWCC and Estimation of the SWCC from Moisture Profile under a Controlled Thermal Gradient." Thèse, Université d'Ottawa / University of Ottawa, 2014. http://hdl.handle.net/10393/31072.

Full text
Abstract:
In many situations, the upper layers of soil above the ground water table are in a state of unsaturated condition. Although unsaturated soils are found throughout the world, they are predominant in arid or semi-arid regions. In these areas, the soil water characteristic curve (SWCC) which relates the water content to the matric suction could be used as key tool to implement the mechanics of unsaturated soils into the designs of geotechnical structures such as dams, embankments, pavements, canals, and foundations. Several experimental techniques are available for determining the SWCC in a laboratory environment. However, these experimental techniques are expensive, time consuming typically requiring days or weeks, depending on the soil type, and demanding intricate testing equipment. Due to these reasons, there has been a growing interest to find other means for estimating SWCC and encourage the adoption of unsaturated soils mechanics in geotechnical engineering practice. Several methods exist to indirectly estimate the SWCC from basic soil properties. Some may include statistical estimation of the water content at selected matric suction values, correlation of soil properties with the fitting parameters of an analytical equation that represents the SWCC, estimation of the SWCC using a physics-based conceptual model, and artificial intelligence methods such as neural networks or genetic programming. However, many studies have shown that environmental effects such as temperature, soil structure, initial water content, void ratio, stress history, compaction method, etc. can also affect the SWCC. This means that the estimation SWCC from set of conditions may not reliably predict the SWCC in other conditions. Due to this reason, it is crucial for engineers involved with unsaturated soils to take into account all the factors that influence the SWCC. The two key objectives of the present thesis are the development of a method based on first principles, using the capillary rise theory, to predict the variation of the SWCC as a function of temperature, as well as developing a technique for the prediction of the fixed parameters of a well-known function representing the SWCC based on basic soil properties together with the moisture profile of a soil column subjected to a known temperature gradient. A rational approach using capillary rise theory and the effect of temperature on surface tension and liquid density is developed to study the relation between temperature and the parameters of the Fredlund and Xing (1994) equation. Several tests, using a Tempe cell submerged in a controlled temperature bath, were performed to determine the SWCC of two coarse-grained soils at different temperatures. A good comparison between the predicted SWCC at different temperatures using the proposed model and the measured values from the Tempe cell test results is achieved. Within the scope of this thesis, a separate testing program was undertaken to indirectly estimate the SWCC of the same two coarse-grained soils from the measurement of their steady state soil-moisture profile while subjected to a fixed temperature differences. The water potential equation in the liquid and vapor phases is used to analyses the steady state flow conditions in the unsaturated soil. A good comparison is obtained for the SWCC estimated using this technique with the SWCC measured used a Tempe cell submerged in a controlled temperature bath. The results of this study indicate that knowledge of the moisture content of a soil specimen under a constant thermal gradient and basic soil properties can be used to estimate the SWCC of the soil at the desired temperature.
APA, Harvard, Vancouver, ISO, and other styles
10

Taparugssanagorn, A. (Attaphongse). "Evaluation of MIMO radio channel characteristics from TDM-switched MIMO channel sounding." Doctoral thesis, University of Oulu, 2007. http://urn.fi/urn:isbn:9789514286506.

Full text
Abstract:
Abstract The present dissertation deals with the evaluation of multiple-input multiple-output (MIMO) radio channel characteristics from time-division multiplexing (TDM)-switched MIMO channel sounding. The research can be divided into three main areas. First, the impacts of phase noise in TDM-switched MIMO channel sounding on channel capacity are studied. Second, we focus on those impacts on channel parameter estimation using the SAGE algorithm. And in the last part, spatial correlation, channel eigenvalue distribution, and ergodic capacity in realistic environments are analyzed. The rationale behind the first two areas is that most advanced MIMO radio channel sounders employ the TDM technique, which has significant problems from phase noise of the TX and RX phase locked loop (PLL) oscillators causing measurement errors in terms of estimated channel capacity and parameters. We propose statistical models that reproduce the capacity estimates. The effects of the sounding mode (SM), the length of pseudo-random noise (PN) sequence L of the sounding signal, and the system size are disclosed. The distinctive basis is to consider the impact of the actual phase noise in TDM switched MIMO channel sounding, instead of assuming white Gaussian-type phase noise. In a reality, the short-term phase noise component affecting one measurement cycle of a MIMO system plays an important role in the traditional estimators of the radio channel parameters and capacity. We show that the performance impairment is less than that been under the hypothesis of uncorrelated white Gaussian phase-noises samples. The difference is due to the non-vanishing correlation of phase-noise within the measurement cycle. Two approaches to mitigating the impact of phase noise are proposed. The former is the simple and efficient sliding averaging method, where the signal-to-noise ratio (SNR) of the channel impulse response can be increased. The latter is the choice of SM and L, which is more thorough. In the second part, two approaches to mitigating its impact on channel parameter estimation using the SAGE algorithm are also discussed. Besides the sliding averaging, which in general can increase the SNR, the new SAGE algorithm based channel parameter estimation based on the improved signal model accounting for the phase noise in the measurement device is proposed. Finally, the channel eigenvalue distribution and ergodic capacity based on complex hypergeometric functions and their asymptotic characteristics are analyzed. It is shown that the derived theoretical expressions closely approximate the simulated results of the measured finite-dimensional MIMO channels. The spatial correlation and the eigenvalue statistics in frequency selective channels for single and dual polarized antennas are investigated. This knowledge is useful when different MIMO and beamforming techniques are applied.
APA, Harvard, Vancouver, ISO, and other styles
More sources

Books on the topic "Characteristic estimation"

1

Knight, John L. Estimation of stationary stochastic processes via the empirical characteristic function. Cambridge: Department of Applied Economics, University of Cambridge, 1994.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
2

Hucklebridge, Arthur A. Identification of structural interface characteristics using component mode synthesis. [Washington, DC: National Aeronautics and Space Administration, 1987.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
3

Kircher, J. E. Estimation of natural streamflow characteristics in western Colorado. Lakewood, Colo: U.S. Dept. of the Interior, Geological Survey, 1985.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
4

Kircher, J. E. Estimation of natural streamflow characteristics in western Colorado. Lakewood, Colo: U.S. Dept. of the Interior, Geological Survey, 1985.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
5

Kircher, J. E. Estimation of natural streamflow characteristics in western Colorado. Lakewood, Colo: U.S. Dept. of the Interior, Geological Survey, 1985.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
6

Roth, Donald K. Estimation of flood peaks from channel characteristics in Ohio. Columbus, Ohio: U.S. Dept. of the Interior, Geological Survey, 1986.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
7

Scott, Joe H. Nomographs for estimating surface fire behavior characteristics. Fort Collins, CO: U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Research Station, 2007.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
8

Vernez, Georges. The acquisition cost-estimating workforce: Census and characteristics. Santa Monica, CA: RAND, 2009.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
9

G, Massey H., Project Air Force (U.S.), Rand Corporation, and United States Air Force, eds. The acquisition cost-estimating workforce: Census and characteristics. Santa Monica, CA: RAND, 2009.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
10

Vernez, Georges. The acquisition cost-estimating workforce: Census and characteristics. Santa Monica, CA: RAND, 2009.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Book chapters on the topic "Characteristic estimation"

1

Rémillard, Bruno, and Radu Theodorescu. "Estimation Based on the Empirical Characteristic Function." In Asymptotic Methods in Probability and Statistics with Applications, 435–49. Boston, MA: Birkhäuser Boston, 2001. http://dx.doi.org/10.1007/978-1-4612-0209-7_31.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Liu, Zhigang. "Wave Motion Characteristic of Contact Line Considering Wind." In Detection and Estimation Research of High-speed Railway Catenary, 55–75. Singapore: Springer Singapore, 2016. http://dx.doi.org/10.1007/978-981-10-2753-6_3.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Ura, K., T. Inoue, and S. Yabui. "Experimental Estimation of Friction Characteristic of Annular Plain Seal." In Vibration Engineering for a Sustainable Future, 163–69. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-46466-0_23.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Ledrappier, F., and J. M. Strelcyn. "The estimation of entropy from below through Lyapunov characteristic exponents." In Invariant Manifolds, Entropy and Billiards; Smooth Maps with Singularities, 157–79. Berlin, Heidelberg: Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/bfb0099034.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Katok, A., and J. M. Strelcyn. "The estimation of entorpy from above through Lyapunov characteristic numbers." In Invariant Manifolds, Entropy and Billiards; Smooth Maps with Singularities, 180–98. Berlin, Heidelberg: Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/bfb0099035.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Kuppa, Sampath Kumar, and Mohit Lal. "Characteristic Parameters Estimation of Active Magnetic Bearings for Varying Controlling Parameters." In Lecture Notes in Mechanical Engineering, 469–79. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-5701-9_38.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

O’Brien, Peter R., and Thomas L. Savarino. "Modeling the Driving-Point Characteristic of Resistive Interconnect for Accurate Delay Estimation." In The Best of ICCAD, 393–402. Boston, MA: Springer US, 2003. http://dx.doi.org/10.1007/978-1-4615-0292-0_31.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Xiang, Long, Jian-Jiang Ding, Xiao-Wei Shi, and Zhi-Fang Zuo. "Analysis and Estimation of Vertical Beam Characteristic Parameters for Phased Array Radar." In Electronics, Communications and Networks V, 119–25. Singapore: Springer Singapore, 2016. http://dx.doi.org/10.1007/978-981-10-0740-8_14.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Zhang, Qiankun, Hongzhou Chai, Fan Zhang, Xiangyu Tian, Min Wang, and Minzhi Xiang. "Estimation and Characteristic Analysis of GPS Differential Code Bias at the Receiver Side." In Lecture Notes in Electrical Engineering, 4859–70. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-6613-2_471.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Li, Huaming, Mingquan Zhou, and Guohua Geng. "Facial Pose Estimation Based on the Mongolian Race’s Feature Characteristic from a Monocular Image." In Advances in Biometric Person Authentication, 172–78. Berlin, Heidelberg: Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-540-30548-4_20.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Characteristic estimation"

1

G.N. Flerchinger, M.S. Seyfried, and S.P. Hardegree. "Estimation of the Soil Moisture Characteristic Curve from the Soil Freezing Characteristic." In 2004, Ottawa, Canada August 1 - 4, 2004. St. Joseph, MI: American Society of Agricultural and Biological Engineers, 2004. http://dx.doi.org/10.13031/2013.16186.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Goh Keng Harng, Tiong Sieh Kiong, Johnny Koh, and David Yap. "WiMAX channel characteristic analysis and capacity estimation." In TENCON 2008 - 2008 IEEE Region 10 Conference (TENCON). IEEE, 2008. http://dx.doi.org/10.1109/tencon.2008.4766445.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Dallas, William J. "Characteristic bodies and surface constrained source estimation." In San Diego '92, edited by David C. Wilson and Joseph N. Wilson. SPIE, 1992. http://dx.doi.org/10.1117/12.130909.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Yan, Zhaoli, Limin Du, Jianqiang Wei, and Hui Zeng. "Time delay estimation based on hearing characteristic." In 8th European Conference on Speech Communication and Technology (Eurospeech 2003). ISCA: ISCA, 2003. http://dx.doi.org/10.21437/eurospeech.2003-225.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Harng, Goh Keng, Tiong Sieh Kiong, Johnny Koh, and David Yap. "WiMAX Capacity Estimation Through Channel Characteristic Simulation." In 2nd Malaysia Conferenced on Photonics (MCP). IEEE, 2008. http://dx.doi.org/10.1109/nctt.2008.4814310.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Verma, Vishash, Drona Dahal, Raj Kishen Radha Krishnan, Bjorn Lussem, and Tsung-Heng Tsai. "A new approach to transfer characteristic slope estimation." In Organic and Hybrid Field-Effect Transistors XX, edited by Oana D. Jurchescu and Iain McCulloch. SPIE, 2021. http://dx.doi.org/10.1117/12.2593301.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Aoki, Shigeru. "Estimation Method for First Excursion Probability of System With Collision Characteristic." In ASME 2006 Pressure Vessels and Piping/ICPVT-11 Conference. ASMEDC, 2006. http://dx.doi.org/10.1115/pvp2006-icpvt-11-93084.

Full text
Abstract:
Safety of structures subjected to seismic excitations should be evaluated in probabilistic manner. First excursion failure is one of the most important failure modes of structures. Many structures have nonlinear characteristics. Collision characteristic is one of the most common nonlinear characteristics observed in pressure vessels and piping systems. In this paper, an estimation method for the first excursion probability of structure with collision characteristic is proposed. The first excursion probability is the function of many parameters. It is shown that when the tolerance level is normalized by the expected value of the maximum response of the structures, the first excursion probability can be shown to be in dependent of many parameters.
APA, Harvard, Vancouver, ISO, and other styles
8

Pavlenko, Vitaliy, Illia Ivanov, and Evgeny Kravchenko. "Estimation of the multidimensional dynamical characteristic eye-motor system." In 2017 9th IEEE International Conference on Intelligent Data Acquisition and Advanced Computing Systems: Technology and Applications (IDAACS). IEEE, 2017. http://dx.doi.org/10.1109/idaacs.2017.8095171.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

"POSITION ESTIMATION OF MOBILE ROBOTS CONSIDERING CHARACTERISTIC TERRAIN PROPERTIES." In 7th International Conference on Informatics in Control, Automation and Robotics. SciTePress - Science and and Technology Publications, 2010. http://dx.doi.org/10.5220/0002880200050014.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Chen, Xu, and Chunhui Zhao. "Multivariate Time Delay Estimation Based on Dynamic Characteristic Analytics." In 2020 39th Chinese Control Conference (CCC). IEEE, 2020. http://dx.doi.org/10.23919/ccc50068.2020.9189628.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Characteristic estimation"

1

Rusu, Petre I., and S. P. Pitt. Estimation of Receiver Operating Characteristic Curves for Multiping Mine Detection Using Empirical Target Data. Fort Belvoir, VA: Defense Technical Information Center, March 2002. http://dx.doi.org/10.21236/ada421690.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Соловйов, В. М., В. В. Соловйова, and Д. М. Чабаненко. Динаміка параметрів α-стійкого процесу Леві для розподілів прибутковостей фінансових часових рядів. ФО-П Ткачук О. В., 2014. http://dx.doi.org/10.31812/0564/1336.

Full text
Abstract:
Modem market economy of any country cannot successfully behave without the existence of the effective financial market. In the conditions of growing financial market, it is necessary to use modern risk-management methods, which take non-gaussian distributions into consideration. It is known, that financial and economic time series return’s distributions demonstrate so-called «heavy tails», which interrupts the modeling o f these processes with classical statistical methods. One o f the models, that is able to describe processes with «heavy tails», are the а -stable Levi processes. They can slightly simulate the dynamics of the asset prices, because it consists o f two components: the Brownian motion component and jump component. In the current work the usage of model parameters estimation procedure is proposed, which is based on the characteristic functions and is applied for the moving window for the purpose of financial-economic system’ s state monitoring.
APA, Harvard, Vancouver, ISO, and other styles
3

Scott, Joe H. Nomographs for estimating surface fire behavior characteristics. Ft. Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, 2007. http://dx.doi.org/10.2737/rmrs-gtr-192.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Ellithy, Ghada. Spreadsheet for estimating soil water characteristic curves (SWCC). Geotechnical and Structures Laboratory (U.S.), June 2017. http://dx.doi.org/10.21079/11681/22582.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Krause, Paul F., Michael V. Campbell, and Harry B. Puffenberger. Estimating Understory Stem Density From Overstory Structural Characteristics. Fort Belvoir, VA: Defense Technical Information Center, March 2001. http://dx.doi.org/10.21236/ada394278.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Padgett, W. J. Further Studies in Estimation of Life Distribution Characteristics from Censored Data. Fort Belvoir, VA: Defense Technical Information Center, June 1987. http://dx.doi.org/10.21236/ada184862.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Bajari, Patrick, and C. Lanier Benkard. Demand Estimation With Heterogeneous Consumers and Unobserved Product Characteristics: A Hedonic Approach. Cambridge, MA: National Bureau of Economic Research, July 2001. http://dx.doi.org/10.3386/t0272.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Benkard, C. Lanier, and Patrick Bajari. Demand Estimation with Heterogeneous Consumers and Unobserved Product Characteristics: A Hedonic Approach. Cambridge, MA: National Bureau of Economic Research, February 2004. http://dx.doi.org/10.3386/w10278.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

MANOUCHEHRIAN, Amin, Mostafa SHARIFZADEH, and Rasoul HAMIDZADEH MOGHADAM. Estimation of UCS of Rock from its Textural Characteristics using Artificial Neural Networks. Cogeo@oeaw-giscience, September 2011. http://dx.doi.org/10.5242/iamg.2011.0038.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Ibarburu, Maro, James B. Kliebenstein, and Brent M. Hueth. Estimation of the Necessary Sample Size for Predicting Meat Quality Characteristics for Producers. Ames (Iowa): Iowa State University, January 2007. http://dx.doi.org/10.31274/ans_air-180814-630.

Full text
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the extended bibliographies on the topic 'Characteristic estimation' for particular source types:
Journal articles Dissertations / Theses Books
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography