Academic literature on the topic 'Frequency jump'

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Journal articles on the topic "Frequency jump"

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Jurdi, Doureige. "Intraday Jumps, Liquidity, and U.S. Macroeconomic News: Evidence from Exchange Traded Funds." Journal of Risk and Financial Management 13, no. 6 (June 5, 2020): 118. http://dx.doi.org/10.3390/jrfm13060118.

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This paper uses two highly liquid S&P 500 and gold exchange-traded funds (ETFs) to evaluate the impact of liquidity and macroeconomic news surprises on the frequency of observing intraday jumps. It explicitly addresses market microstructure noise-induced biases in realized estimators used in jump detection tests and applies non-parametric intraday jump detection tests. The results show a significant increase in trading costs and elevated levels of information asymmetry before observing jumps. Depth, resiliency, and trading activity are associated with the frequency of observing intraday jumps and cojumps. The ability of liquidity variables to predict intraday jumps persists after controlling for news surprises. Results show that intraday jump realizations affect the price discovery of ETFs.
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Janszky, J., and Y. Y. Yushin. "Squeezing via frequency jump." Optics Communications 59, no. 2 (August 1986): 151–54. http://dx.doi.org/10.1016/0030-4018(86)90468-2.

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LU, XINHONG, KEN-ICHI KAWAI, and KOICHI MAEKAWA. "ESTIMATING BIVARIATE GARCH-JUMP MODEL BASED ON HIGH FREQUENCY DATA: THE CASE OF REVALUATION OF THE CHINESE YUAN IN JULY 2005." Asia-Pacific Journal of Operational Research 27, no. 02 (April 2010): 287–300. http://dx.doi.org/10.1142/s0217595910002697.

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This paper analyzes the behavior of one-minute high-frequency time-series data of exchange rates for five currencies (Japanese Yen, Australian Dollar, Canadian Dollar, Euro, and Pound Sterling) against the US Dollar when the Chinese Yuan was revalued on July 21st, 2005. The data show the following distinctive features: (1) There is a large jump in the exchange rates time series at the time of the Yuan revaluation. (2) Large volatility in the returns of exchange rates is observed for a while after the jump. (3) There are many other jumps, possibly correlated, in each exchange rate time series. To capture these features we fit the following models to the data: (i) a univariate GARCH-Jump model with a large jump that is influential on volatility, and (ii) a bivariate GARCH-Jump model with correlated Poisson jumps. For comparison, we also estimate these GARCH models without the associated jumps. The model performance is evaluated based on Value-at-Risk (VaR).
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Yu, Chao, Jianxin Bi, and Xujie Zhao. "Modeling Financial Intraday Jump Tail Contagion with High Frequency Data Using Mutually Exciting Hawkes Process." Discrete Dynamics in Nature and Society 2020 (May 20, 2020): 1–10. http://dx.doi.org/10.1155/2020/7940647.

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Financial extreme jumps in asset price may propagate across stock markets and lead to the market-wide crashes, which severely threatens the stability of the financial system. In order to analyzing the contagion features of jump tail risk, this paper proposes a mutually exciting contagion model based on Hawkes process with intraday high frequency data. We use a simple two-stage method that first extracts the jump component nonparametrically from the high frequency data and then models the intraday jump tail using mutually exciting Hawkes process. Moreover, we take both the occurrence time and magnitude of jump into account in modeling the conditional intensity of Hawkes process. The proposed method is applied to the five-minute high frequency data of the Chinese stock market. The empirical results show that, for the two main Chinese stock markets, only background intensity is significant in the Shanghai stock market, while mutually exciting effect is significant in the Shenzhen stock market. Both the location and size of jump in the Shanghai stock market have significant stimulation to the next occurrences of jump in the Shenzhen stock market. Furthermore, the proposed model performs very well in predicting the future jump tail events.
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Chen, Guojin, Xiaoqun Liu, Peilin Hsieh, and Xiangqin Zhao. "Realized Jump Risk and Equity Return in China." Discrete Dynamics in Nature and Society 2014 (2014): 1–13. http://dx.doi.org/10.1155/2014/721635.

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We utilize the realized jump components to explore a new jump (including nonsystematic jump and systematic jump) risk factor model. After estimating daily realized jumps from high-frequency transaction data of the Chinese A-share stocks, we calculate monthly jump size, monthly jump standard deviation, and monthly jump arrival rate and then use those monthly jump factors to explain the return of the following month. Our empirical results show that the jump tail risk can explain the equity return. For the large capital-size stocks, large cap stock portfolios, and index, one-month lagged jump risk factor significantly explains the asset return variation. Our results remain the same even when we add the size and value factors in the robustness tests.
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Nkwoma, Inekwe John. "FUTURES-BASED MEASURES OF MONETARY POLICY AND JUMP RISK." Macroeconomic Dynamics 21, no. 2 (May 23, 2016): 384–405. http://dx.doi.org/10.1017/s1365100515000553.

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We estimate the effects of anticipated and unanticipated monetary policy changes on jump variation by employing high-frequency nonparametric jump detection methods. We find that anticipated changes in the Fed funds have no significant effect on jumps. In contrast, jump variation in the price of financial market data increases with monetary policy surprises. We document evidence of asymmetries in the response of jumps to monetary policy changes. Monetary policy surprises and positive changes in the Fed target rate induce increments in jumps. Similar results exist in the sector analysis. In addition, this study uncovers no evidence of endogenous response between jumps and monetary policy surprises.
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Riley, W. J. "Algorithms for frequency jump detection." Metrologia 45, no. 6 (December 2008): S154—S161. http://dx.doi.org/10.1088/0026-1394/45/6/s21.

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Dovonon, Prosper, Sílvia Gonçalves, Ulrich Hounyo, and Nour Meddahi. "Bootstrapping High-Frequency Jump Tests." Journal of the American Statistical Association 114, no. 526 (August 6, 2018): 793–803. http://dx.doi.org/10.1080/01621459.2018.1447485.

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Newhouse, Randal, Justine Minish, and Gary S. Collins. "Diffusion in Binary and Pseudo-Binary L12 Indides, Stannides, Gallides and Aluminides of Rare-Earth Elements as Studied Using Perturbed Angular Correlation of 111In/Cd." Defect and Diffusion Forum 323-325 (April 2012): 447–52. http://dx.doi.org/10.4028/www.scientific.net/ddf.323-325.447.

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Diffusional jumps can produce fluctuating electric field gradients at nuclei of jumping atoms. Using perturbed angular correlation of gamma rays (PAC), jumps of probe atoms cause nuclear quadrupole relaxation that can be fitted to obtain the mean jump frequency. An overview is given of the application of this approach to highly ordered intermetallic compounds having the L12(Cu3Au) crystal structure. New results are then presented for jump frequencies of111In/Cd probe atoms in pseudo-binary L12compounds of the forms In3(La1-xPrx) and (In1-xSnx)3La. For the mixed rare-earth system, jump frequencies are found to scale with composition between jump frequencies of the end-member phases In3La and In3Pr. However, for the mixed sp-element system, a large decrease in jump frequency is observed as Sn atoms substitute for In-atoms. This difference in behavior appears to depend on whether atomic disorder is on the diffusion sublattice (In-Sn substitution), as opposed to a neighboring sublattice (La-Pr substitution), whether or not there is a difference in diffusion mechanism between end-member phases, and/or whether or not there is a valence difference between the mixing atoms. All three conditions apply for only (In1-xSnx)3La.
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Lage, Stephanie, and Gary S. Collins. "Motion of Cadmium Tracer Atoms in Al11R3 Phases (R=La,Ce,Pr)." Defect and Diffusion Forum 289-292 (April 2009): 755–61. http://dx.doi.org/10.4028/www.scientific.net/ddf.289-292.755.

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Jump frequencies of Cd tracer atoms were measured in three phases having the orthorhombic Al11R3 structure, with R= La, Ce, or Pr. The structure has four inequivalent Al-sites and two inequivalent R-sites. 111In/Cd tracer atoms were observed to occupy several sites via the nuclear quadrupole interaction using perturbed angular correlation of gamma rays (PAC). Time-domain PAC spectra became damped as the temperature increased, which is attributed to nuclear relaxation caused by diffusional jumps of Cd tracer atoms leading to changes in orientations and/or magnitudes of electric field gradients (EFG’s). Maximum relaxations were observed near 770 K. A method is proposed for estimating the mean jump frequency at that temperature, giving a mean jump frequency w averaged over all sites of about 100 MHz. At still higher temperatures, damping decreased due to motional averaging, and the quadrupole perturbations evolved into unique signals having lower frequencies and corresponding in each phase to the averages of EFG tensors of all sites visited by the Cd tracer atoms. For Al11La3, the jump frequency at 1073 K was estimated to be 1.9 GHz. Such jump frequencies imply unusually high diffusivities in these phases.
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Dissertations / Theses on the topic "Frequency jump"

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Tsai, Ping-Chen. "An empirical study on jumps in asset prices using high-frequency data : volatility specification, jumps detection & the modelling of jump intensity." Thesis, Lancaster University, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.663227.

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To provide further evidences on jumps in asset prices, in this thesis we conduct an empirical analysis on high-frequency data from a stock index and consider the problem of identifying jumps at intraday intervals. Our approach generalizes two existing methods in the literature in terms of estimating spot volatility and of correcting for the spurious rejection problem due to multiple testing. The proposed procedure directly depends on a credible volatility model that we specify and calibrate from the index data. By simulating the volatility model, it is shown that a relevant parameter which governs the shape of the generalized extreme value (GEV) distribution determines the critical regions of jump tests. Empirical sizes of jump tests can then be held at nominal level approximately when the testing procedure is applied to high-frequency returns. We also study the dynamics of detected jumps and model their time-varying intensities with a linear self-exciting point process.
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Sanderson, Mark Findlay. "Whole body vibration : stimulus characteristics and acute neuromuscular responses." Thesis, University of Edinburgh, 2014. http://hdl.handle.net/1842/15741.

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Whole body vibration (WBV) delivers a stimulus to the body via an oscillating platform and remains a relatively new area of research. Several applications of WBV stimuli have been developed as strength training and rehabilitation modalities, but inconsistent results have been published. There is little knowledge underpinning the mechanisms to explain the elicited neuromuscular responses to WBV and a wide range of WBV parameters across the literature. As a result, safe and effective protocols are yet to be established or validated. The aim of this current research was to investigate: the electromyography (EMG) and explosive performance responses to varying WBV frequencies; the effect of WBV data analysis techniques; and the influence of external factors on WBV stimulus and neuromuscular responses. Three main studies were completed: 1. An individualised response of both EMG and jump performance appears to exist dependent on vertical WBV frequency, in trained participants. This is in spite of no overall frequency dependent effect of EMG or performance responses across participants as a group. The influence of the role of expectancy effect appears minimal following this particular WBV protocol. 2. There was a significant effect of filter technique on EMG data recorded during vertical WBV. A tailored, WBV specific notch filter technique may offer an effective balance; excluding WBV noise artifacts without removing significant portions of valuable muscle signal EMG data. 3. The influence of external load on WBV acceleration output also appears minimal. Platform acceleration output was dependent on WBV frequency, as expected. Lower accelerations were recorded in superior body segments, suggesting a dampening mechanism, which was also proportionally dependent on frequency. EMG activity of upper and lower leg segments may differ in response to frequency, likely due to transmission distances involved. This may partially account for a potential dampening mechanism. In addition, a protocol to quantify WBV stimuli delivered by this particular WBV type illustrated significant differences in theoretical and actual parameters. This may explain not only the lack of overall explosive performance effect reported earlier; but also the inconsistent WBV literature. Future research should quantify WBV stimulus before investigating possible neuromuscular responses to individualised protocols, which may be assessed via EMG activity.
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Rohani-Mehdiabadi, Bijan. "Frequency discriminator detection in frequency-selective fading environments." Curtin University of Technology, School of Electrical and Computer Engineering, 1998. http://espace.library.curtin.edu.au:80/R/?func=dbin-jump-full&object_id=12148.

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In recent years, millions of customers all over the world have been subscribing to mobile telephony services which are based on modern digital transmission. At the high transmission bit rates that these systems use, the mobile radio channel exhibits frequency-selective fading characteristics. Under such conditions, the received signal could experience significant intersymbol interference (ISI) from severe distortion to the waveform of the received baseband signal. Therefore, such techniques as adaptive waveform equalisation or adaptive maximum likelihood sequence estimation (MLSE) are used in modern digital mobile radio telephone systems to combat this undesirable ISI. These adaptive schemes have almost always been used in conjunction with coherent demodulation in the receivers.This study examines the application of noncoherent demodulation, in the form of frequency discriminator detection, as an alternative to coherent demodulation. The GSM (Global System for Mobile Communications) standard has been used as the basis for this investigation. It has been shown analytically that in the presence of frequency-selective fading, a propagation environment common to the GSM system, the use of frequency discriminator detection gives rise to nonlinear ISI in the demodulated signal. It has also been shown that frequency-selective fading could cause large unwanted "spikes" to appear in the demodulated signal, thus leading to a severe degradation in the bit-error-rate (BER) performance. Consequently, several waveform distortion cancellation schemes for combatting the nonlinear ISI have been formulated. The BER performances of these proposed schemes, under various propagation conditions, have been studied by computer simulation.Furthermore, it has been observed that the undesirable "spikes", that occur in the demodulated signal due to frequency-selective fading, could be ++
suppressed by the use of inverse-limiting in conjunction with frequency discriminator detection. As a result, an effective adaptive detection scheme has been formulated, based on modelling the combination of the GMSK modulator, the mobile channel, the frequency discriminator, and any transmit and receive fitters, as a finite-state machine. The transmitted data is then detected using an MLSE. The BER performance of this proposed adaptive detection scheme has been extensively investigated by computer simulation. This has been carried out assuming various propagation conditions, including the two-ray fading channel model with equal path powers and relative delays of up to four bit periods, the maximum relative delay considered in the GSM system. Also, the effectiveness of the proposed adaptive detection scheme in combatting IS] has been investigated by computer simulation based on the six-ray GSM empirical propagation models for typical urban (TU), hilly terrain (HT) and rural area (RA) environments. The computer simulated results confirm that the voice grade performance required for the GSM system could be achieved by the proposed adaptive detection scheme in all the recommended GSM propagation models considered. Furthermore, the BER performance of the receiver remains unaffected by a carrier frequency offset of up to 2 kHz.
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Wong, Kar Lun (Clarence). "Space-time-frequency channel estimation for multiple-antenna orthogonal frequency division multiplexing systems." Thesis, McGill University, 2007. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=100244.

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We propose a linear mean square error channel estimator that exploits the joint space-time-frequency (STF) correlations of the wireless fading channel for applications in multiple-antenna orthogonal frequency division multiplexing systems. Our work generalizes existing channel estimators to the full dimensions including transmit spatial, receive spatial, time, and frequency. This allows versatile applications of our STF channel estimator to any fading environment, ranging from spatially-uncorrelated slow-varying frequency-flat channels to spatially-correlated fast-varying frequency-selective channels.
The proposed STF channel estimator reduces to a time-frequency (TF) channel estimator when no spatial correlations exist. In another perspective, the lower-dimension TF channel estimator can be viewed as an STF channel estimator with spatial correlation mismatch for space-time-frequency selective channels.
Computer simulations were performed to study the mean-square-error (MSE) behavior with different pilot parameters. We then evaluate the suitability of our STF channel estimator on a space-frequency block coded OFDM system. Bit error rate (BER) performance degradation, with respect to perfect coherent detection, is limited to less than 2 dB at a BER of 10-5 in the modified 3GPP fast-fading suburban macro environment. Modifications to the 3GPP channel involves reducing the base station angle spread to imitate a high transmit spatial correlation scenario to emphasize the benefit of exploiting spatial correlation in our STF channel estimator.
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Hill, Martin T. "New techniques for measurement and tracking of phase and frequency." Curtin University of Technology, Australian Telecommunications Research Institute, 1997. http://espace.library.curtin.edu.au:80/R/?func=dbin-jump-full&object_id=10983.

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This thesis presents and analyses new techniques to measure and track the phase and frequency of high frequency narrow bandwidth signals. In particular, these techniques are all digital in nature or can be implemented in digital integrated circuit technology.Presented first is a frequency measurement technique which involves sampling at regular intervals a binary quantized narrow band signal. The binary quantized samples are digitally processed to obtain the instantaneous frequency of the signal.It is shown that small phase movements in the signal can be detected even though the sampling occurs at a rate much lower than the signal frequency; that there are no frequency offsets in the frequency measurement technique; that the phase error in the technique is small and bounded provided the signal frequency is maintained within derived limits. Other properties of the technique are also derived.The frequency measurement technique is experimentally demonstrated in a number of typical applications.Secondly, a new phase tracking system is presented, which has similarities to conventional phase locked loops. However, unlike phase locked loops, the new system incorporates a local reference source which effectively stabilizes the phase estimate of the signal input being tracked.It is shown that the new system has the following advantages: Precise centre frequency, controllable lock range, and elimination or reduction of the effects of imperfections like voltage controlled oscillator phase noise. General behaviour in noise of the new phase tracking system is derived.An implementation of the new system is presented which employs the frequency measurement technique described above. This implementation is characterized by very precise centre frequency, high phase noise suppression, and can be built almost entirely in digital integrated circuit technology. The new system is ++
experimentally demonstrated in some typical applications.The techniques presented in this thesis provide improvements of several orders of magnitude in the ability of systems implemented in digital integrated circuit technology to: Measure and control phase and frequency of narrow band signals; Implement high performance phase tracking systems.
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Chopp, Philip. "Frequency-translating delta-sigma modulation for bandpass analog-to-digital conversion of high- frequency signals." Thesis, McGill University, 2012. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=110454.

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A traditional heterodyne receiver downconverts its input signal to one or more intermediate frequencies (IFs) before digitizing it at baseband. In a digital-IF receiver, the input signal is digitized directly at an IF using a bandpass analog-to-digital converter (ADC). Accordingly, the digital-IF receiver replaces the image-reject mixers and baseband filters of a heterodyne receiver with accurate and effcient digital functions, and therefore provides greater potential for reconfigurability. In order to maximize the advantages of a digital-IF receiver, a common design objective is to position the bandpass ADC as close as possible to the antenna, and to operate on the input signal at a high IF.A bandpass ADC is effciently implemented using a delta-sigma modulator, which can provide high-resolution A/D (analog-to-digital) conversion over a relatively narrow band around an IF. In order to operate on high-IF signals, conventional bandpass delta-sigma modulators require high-frequency filters and high sampling rates, which can result in high sensitivity to circuit non-idealities and high power consumption. These disadvantages are addressed by the frequency-translating delta-sigma modulator, which uses downconversion mixing inside its delta-sigma loop to process high-IF signals using low sampling rates and primarily low-frequency filters.This thesis investigates frequency-translating delta-sigma modulators for direct A/D conversion of high-IF signals. It first analyses the system architecture and performance limitations of an existing type of frequency-translating delta-sigma modulator that is based on image-reject mixing. This analysis is supported by an initial study on the effect of timing errors in a conventional delta-sigma modulator. The thesis then introduces a novel frequency-translating delta-sigma modulator that is based on single-path mixing. The advantages of the presented single-path architecture are demonstrated using an experimental delta-sigma modulator.The experimental delta-sigma modulator is designed to digitize a 4 MHz input-signal band that is centred at an IF of 225 MHz. It uses a local oscillation signal with a frequency of 200 MHz to downconvert this input-signal band to an IF of 25 MHz inside its delta-sigma loop, and samples at 100 MHz. The experimental prototype was fabricated in a standard 65 nm CMOS process. It achieves a peak SNDR of 55 dB and a dynamic range of 57.5 dB, while consuming 13 mW from a 1-V power supply. It has a full-scale range of 700 mVp-p.
Un recepteur heterodyne traditionnel transpose un signal en entree vers une ou plusieurs frequences intermediaires (FI) avant de le numeriser a la bande de base. Dans un recepteur numerique FI, le signal en entree est numerise directement a la frequence FI a l'aide d'un convertisseur analogique-numerique passe-bande. Par consequent, le recepteur numerique FI remplace les melangeurs de rejection d'image et les filtres a bande de base d'un recepteur heterodyne traditionnel par des fonctions numeriques precises et efficaces. De ce fait, le recepteur numerique FI offre plus de possibilites de reconfiguration. Afin de maximiser les avantages d'un recepteur numerique FI, un objectif de conception frequent consiste a placer le convertisseur analogique-numerique passe-bande aussi pres que possible de l'antenne et de numeriser le signal en entree a une frequence FI elevee.Un convertisseur analogique-numerique passe-bande peut etre realise efficacement en utilisant un modulateur delta-sigma. En effet, ce dernier procure une conversion A/N (analogique-numerique) a haute resolution sur une bande relativement restreinte centree autour d'une frequence FI. Afin de fonctionner sur des signaux a frequences FI elevees, les modulateurs delta-sigma passe-bande classiques requierent des filtres hautes-frequences et des frequences d'echantillonnage elevees, ce qui peut les rendre tres sensibles aux non-idealites du circuit et mener a une consommation electrique importante. Il est possible de remedier a ces inconvenients en utilisant un modulateur delta-sigma a transposition de frequence. En effet, ce dernier utilise des melangeurs dans sa boucle delta-sigma pour traiter des signaux a frequence FI elevee a des frequences d'echantillonnage faibles avec principalement des filtres basses-frequences.Cette these etudie l'utilisation de modulateurs delta-sigma a transposition de frequence pour une conversion A/N directe de signaux a frequence FI elevee. Elle analyse d'abord l'architecture et les limitations de performance d'un modulateur delta-sigma a transposition de frequence base sur un melangeur de rejection d'image. Cette analyse est appuyee par une etude initiale effectuee sur l'effet d'erreurs d'horloge sur un modulateur delta-sigma classique. Cette these introduit ensuite un nouveau modulateur delta-sigma a transposition de frequence base sur un melangeur de mono-trajet. Les avantages de cette architecture sont demontres a l'aide d'un prototype de modulateur delta-sigma.Le prototype de modulateur delta-sigma est concu afin de numeriser une bande de signaux en entree de 4 MHz centree autour d'une FI de 225 MHz. Il utilise un signal a oscillation locale d'une frequence de 200 MHz pour transposer cette bande de signaux en entree vers 25 MHz a l'interieur de sa boucle delta-sigma et effectue l'echantillonnage a 100 MHz. Ce prototype a ete realise en utilisant un procede CMOS standard de 65 nm. Il a un SNDR de 55 dB et une gamme dynamique de 57.5 dB tout en consommant 13 mW pour une alimentation de 1-V. Sa plage d'amplitude maximale est de 700 mVp-p.
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McRae, Ken 1962. "The locus of word frequency effects /." Thesis, McGill University, 1988. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=64083.

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HUANG, WEI. "Improved PPP for time and frequency transfer and real-time detection of GNSS satellite clock frequency anomalies." Doctoral thesis, Politecnico di Torino, 2020. http://hdl.handle.net/11583/2842527.

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Monfet, Frederic. "Turbo equalization using frequency-domain shortening filter." Thesis, McGill University, 2006. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=99527.

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Turbo equalization provides excellent performance but the complexity associated with this technique prohibits its use in application with severe inter-symbol interference (ISI) channel; the turbo equalizer complexity increases exponentially with the length of the channel impulse response (CIR) and the modulation level used for data transmission. In this work, a combined frequency-domain pre-equalizer with a turbo equalizer is proposed in an attempt to reduce the length of the CIR used by the turbo equalizer and hence the complexity of the receiver. The optimum selection of coefficients of the frequency-domain pre-equalizer and desired channel impulse response is discussed. With the proposed receiver, the complexity of the turbo equalizer can be controlled by pre-selecting the length of the desired channel impulse response. This complexity reduction is achieved at the cost of an increase in the noise level, which degrades the performance. The effect on the performance of such pre-equalizer is studied analytically. The overall performance of the proposed receiver for different length of the desired channel impulse response is studied via analytical comparison and simulation. Simulation results on performance in various frequency-selective fading channels indicate a substantial performance gain when compared to a conventional feed-forward equalizer (FFE) plus decision-feedback equalizer (DFE) receiver. Finally, in cases where a large alphabet is used for modulation, the reduced-search BCJR (Bahl, Cocke, Jelinek, and Raviv) [1] algorithm is utilized in the proposed receiver to further reduce the complexity of the receiver.
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Aboussouan, Patrick. "Frequency response estimation of manipulator dynamic parameters." Thesis, McGill University, 1986. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=65927.

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Books on the topic "Frequency jump"

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Miller, Peter, Sabah Butty, and Thomas Casciani. Percutaneous Creation of Jump Bypass in a Native Arteriovenous Hemodialysis Fistula. Edited by S. Lowell Kahn, Bulent Arslan, and Abdulrahman Masrani. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780199986071.003.0051.

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This chapter describes the experience with percutaneous creation of jump bypass grafts in nonmature and failed arteriovenous hemodialysis fistulas based on a case series of 10 patients. Percutaneous intervention has been used to salvage nonmature fistulas, dysfunctional fistulas, and grafts. Frequently, venous outflow stenosis is the major cause of arteriovenous fistula and graft failure. Long-segment stenoses and chronically occluded venous outflow stenoses are more difficult to treat percutaneously and may require surgical revision. This chapter describes an endovascular technique creating a percutaneous jump bypass from the cephalic vein to the basilic vein using stent grafts in all patients with excellent immediate results. Limited available follow-up is also reported, including patency of two stent grafts for more than 2 years.
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Book chapters on the topic "Frequency jump"

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Carrella, A. "Nonlinear Identification Using a Frequency Response Function With the Jump." In Topics in Nonlinear Dynamics, Volume 3, 217–23. New York, NY: Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4614-2416-1_17.

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Rodrigues, C., M. Correia, J. Abrantes, M. A. B. Rodrigues, and J. Nadal. "Lower Limb Frequency Response Function on Standard Maximum Vertical Jump." In XXVII Brazilian Congress on Biomedical Engineering, 1815–21. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-70601-2_265.

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Luan, Xiaoli, Shuping He, and Fei Liu. "Finite-Frequency Control with Finite-Time Performance for Markovian Jump Systems." In Robust Control for Discrete-Time Markovian Jump Systems in the Finite-Time Domain, 131–50. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-22182-8_7.

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Xu, JingBo. "Some Problems of Complex Signal Representation." In Proceeding of 2021 International Conference on Wireless Communications, Networking and Applications, 844–49. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-2456-9_86.

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AbstractThe time domain signal is based on the decomposition of the unit step signal, the complex signal is represented by the Heaviside Function, and the problem of the definition of the original jump time in the new function is proposed, based on the analysis and comparison of simple signal and complex signal in time domain and frequency domain, the problems needing attention in using $$\varepsilon (t)$$ ε ( t ) to express signal are put forward. It is concluded that no definition or special definition of the “0” moment in the original unit step signal does not affect the composition of the composite function.
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Xu, Rulin, and Roman N. Makarov. "High-Frequency Statistical Modelling for Jump-Diffusion Multi-asset Price Processes with a Systemic Component." In Springer Proceedings in Mathematics & Statistics, 747–57. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-63591-6_68.

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Ai, Xiao-Wei, Tianming Hu, Gong-Ping Bi, Cheng-Feng Lei, and Hui Xiong. "Discovery of Jump Breaks in Joint Volatility for Volume and Price of High-Frequency Trading Data in China." In Knowledge Science, Engineering and Management, 174–82. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-63558-3_15.

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Kunitomo, Naoto, Seisho Sato, and Daisuke Kurisu. "Estimating Quadratic Variation Under Jumps and Micro-market Noise." In Separating Information Maximum Likelihood Method for High-Frequency Financial Data, 103–9. Tokyo: Springer Japan, 2018. http://dx.doi.org/10.1007/978-4-431-55930-6_9.

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Yalaman, Abdullah. "Bitcoin Jumps and Speculations: Empirical Evidence from High-Frequency Data." In Contributions to Management Science, 617–29. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-29739-8_29.

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Wang, Min, Hongzhou Chai, Zongpeng Pan, and Haifeng Zhu. "A BDS Observation Preprocessing Method Considering the Influence of Frequent Clock Jump." In Lecture Notes in Electrical Engineering, 147–58. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-54737-9_15.

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Tsai, Ping-Chen, and Mark B. Shackleton. "Detecting Jumps in High-Frequency Prices Under Stochastic Volatility: A Review and a Data-Driven Approach." In Handbook of High-Frequency Trading and Modeling in Finance, 137–81. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2016. http://dx.doi.org/10.1002/9781118593486.ch6.

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Conference papers on the topic "Frequency jump"

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Levine, Alfred M., Ercument Ozizmir, Reuven Zaibel, and Yehiam Prior. "General jump model for laser noise: non-Markovian phase and frequency jumps." In Boston - DL tentative, edited by Rajarshi Roy. SPIE, 1991. http://dx.doi.org/10.1117/12.24990.

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Bartoccini, U., G. Barchi, and E. Nunzi. "Methods and tools for frequency jump detection." In 2009 IEEE International Workshop on Advanced Methods for Uncertainty Estimation in Measurement (AMUEM). IEEE, 2009. http://dx.doi.org/10.1109/amuem.2009.5207593.

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Rokos, H. "Drift and jump control in multiple crystal oscillator systems." In 18th European Frequency and Time Forum (EFTF 2004). IEE, 2004. http://dx.doi.org/10.1049/cp:20040931.

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Han, Yan-ju, Wen-qiang Zheng, and Dong-lin Su. "Suppressing the frequency jump in quartz crystal microbalance." In 2014 Symposium on Piezoelectricity,Acoustic Waves, and Device Applications (SPAWDA). IEEE, 2014. http://dx.doi.org/10.1109/spawda.2014.6998565.

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Junli Liang, Li Gao, and Shuyuan Yang. "Frequency estimation and synchronization of frequency hopping signals based on reversible jump MCMC." In 2005 International Symposium on Intelligent Signal Processing and Communication Systems. IEEE, 2005. http://dx.doi.org/10.1109/ispacs.2005.1595478.

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Bucolo, Maide, Arturo Buscarino, Luigi Fortuna, Carlo Famoso, and Salvina Gagliano. "Selective frequency drift detectors based on multiple hysteresis jump resonance." In 2021 IEEE International Conference on Systems, Man, and Cybernetics (SMC). IEEE, 2021. http://dx.doi.org/10.1109/smc52423.2021.9658760.

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Ivanov, Ivan, Lyudmil Trenev, Zdravko Stefanov, Galina Rusimova, Dimitar Zagorski, Ivan Janakiev, Ognian Tishinov, Danail Trenev, and Antonio Antonov. "BIOMECHANICAL JUMP CHARACTERISTICS OF CHILDREN (9 - 12 YEARS) BASEBALL PLAYERS AFTER STRETCHING PROGRAM." In INTERNATIONAL SCIENTIFIC CONGRESS “APPLIED SPORTS SCIENCES”. Scientific Publishing House NSA Press, 2022. http://dx.doi.org/10.37393/icass2022/89.

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ABSTRACT The correlation of lower extremity technique with upper extremity performance of adolescent baseball players is essential for the overall sporting achievement. The purpose of this study was to estimate and compare the important biomechanical jump characteristics of children (9-12-year-old) baseball players (n=14) with control children group (n=17) at the same age. Chronojump contact platform, detecting a single jump with one phase of flight, was used to evaluate five important biomechanical jump characteristics – jump height at squat, countermovement and Abalakov jumps, lower limb elasticity index (IE) and use of arms index (AUI). The results obtained showed statistically significant elevation of jump height in the three jumps used at baseball team. Interesting tendencies were received for the other two calculated indices as well. The lack of statistically significant difference for the IE allows us to suggest an increase of the duration, frequency, and number of stretching exercises in the athletes training program. This would increase the lower limbs elasticity index and will improve force increment due to the elastic energy accumulated during the shortening-stretching cycle. The trend for AUI index is elevated in the control group relative to the team. In addition, the presented data draw attention to improving coordination between the lower and upper body, emphasizing the individual characteristics of each athlete. From the presented relations it is clear that the excellent sports achievement is a result from the complete set of all factors that determine it. However, a more comprehensive analysis, using similar biomechanical methods, is needed for a complete comparison.
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Georgiou, Ioannis T. "Phase Shift Near Natural Frequencies of Non Linear Rods." In ASME 2001 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/detc2001/vib-21588.

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Abstract We study the transient and steady state dynamics of a special class of motions of forced planar rods with exact geometric nonlinearity. The attractors of these motions are separated by a finite jump at a critical forcing frequency in an attractor diagram of the undistorted configuration generated by a quasi-static frequency sweep at fixed forcing amplitude. As the frequency of the forcing passes through this critical or jump frequency, the motion (trajectory) of the undistorted configuration changes basin of attraction. For forcing frequency slightly greater than the jump frequency, the response trajectories of the undistorted configuration pass near an unstable periodic attractor and undergo continuous phase shift while approaching a stable attractor. For forcing frequency slightly smaller than the jump frequency, the response trajectories of the undistorted configuration pass near the same unstable attractor and undergo no net phase angle when landing on the stable attractor that attracts them. The phase-shifting property reveals that the frequncy at which the jump occurs is indeed a natural frequncy of the nonlinear rod.
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Hui Peng, Genshiro Kitagawa, Yoshiyasu Tamura, Yoko Tanokura, Min Gan, and Xiaohong Chen. "Detection of low-frequency large-amplitude jump in financial time series." In 2007 46th IEEE Conference on Decision and Control. IEEE, 2007. http://dx.doi.org/10.1109/cdc.2007.4434218.

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Zlobina, Ekaterina A., and Aleksei P. Kiselev. "High-frequency diffraction by a contour with a jump of curvature." In 2018 Days on Diffraction (DD). IEEE, 2018. http://dx.doi.org/10.1109/dd.2018.8553489.

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Reports on the topic "Frequency jump"

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Aït-Sahalia, Yacine, and Jean Jacod. Analyzing the Spectrum of Asset Returns: Jump and Volatility Components in High Frequency Data. Cambridge, MA: National Bureau of Economic Research, March 2010. http://dx.doi.org/10.3386/w15808.

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