Artykuły w czasopismach na temat „Microwave holography”

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1

Shang, Guanyu, Zhuochao Wang, Haoyu Li, Kuang Zhang, Qun Wu, Shah Burokur i Xumin Ding. "Metasurface Holography in the Microwave Regime". Photonics 8, nr 5 (22.04.2021): 135. http://dx.doi.org/10.3390/photonics8050135.

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Hologram technology has attracted a great deal of interest in a wide range of optical fields owing to its potential use in future optical applications, such as holographic imaging and optical data storage. Although there have been considerable efforts to develop holographic technologies using conventional optics, critical issues still hinder their future development. A metasurface, as an emerging multifunctional device, can manipulate the phase, magnitude, polarization and resonance properties of electromagnetic fields within a sub-wavelength scale, opening up an alternative for a compact holographic structure and high imaging quality. In this review paper, we first introduce the development history of holographic imaging and metasurfaces, and demonstrate some applications of metasurface holography in the field of optics. We then summarize the latest developments in holographic imaging in the microwave regime. These functionalities include phase- and amplitude-based design, polarization multiplexing, wavelength multiplexing, spatial asymmetric propagation, and a reconfigurable mechanism. Finally, we conclude briefly on this rapidly developing research field and present some outlooks for the near future.
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Rochblatt, D. J., i B. L. Seidel. "Microwave antenna holography". IEEE Transactions on Microwave Theory and Techniques 40, nr 6 (czerwiec 1992): 1294–300. http://dx.doi.org/10.1109/22.141363.

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Gaikovich, Konstantin P., Petr K. Gaikovich, Yelena S. Maksimovitch i Vitaly A. Badeev. "Subsurface Near-Field Microwave Holography". IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing 9, nr 1 (styczeń 2016): 74–82. http://dx.doi.org/10.1109/jstars.2015.2443035.

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Guler, M. G., i E. B. Joy. "High resolution spherical microwave holography". IEEE Transactions on Antennas and Propagation 43, nr 5 (maj 1995): 464–72. http://dx.doi.org/10.1109/8.384190.

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Ravan, Maryam, Reza K. Amineh i Natalia K. Nikolova. "Two-dimensional near-field microwave holography". Inverse Problems 26, nr 5 (27.04.2010): 055011. http://dx.doi.org/10.1088/0266-5611/26/5/055011.

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WANG, JinQing, XiuTing ZUO, Kesteven MICHAEL, RongBing ZHAO, LinFeng YU, YongBin JIANG, Wei GOU, YongChen JIANG i Wen GUO. "TM65 m radio telescope microwave holography". SCIENTIA SINICA Physica, Mechanica & Astronomica 47, nr 9 (14.06.2017): 099502. http://dx.doi.org/10.1360/sspma2016-00415.

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7

Su, Deer, Xinwei Wang, Guanyu Shang, Xumin Ding, Shah Nawaz Burokur, Jian Liu i Haoyu Li. "Amplitude-phase modulation metasurface hologram with inverse angular spectrum diffraction theory". Journal of Physics D: Applied Physics 55, nr 23 (9.03.2022): 235102. http://dx.doi.org/10.1088/1361-6463/ac5699.

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Abstract Designed metasurfaces, composed of a two-dimensional array of meta-atoms, provide an alternative approach to achieving efficient electromagnetic wave manipulation. Metasurface holography is an emerging and promising imaging technology, with improved image quality and spatial resolution compared to traditional holography. Many devices are fabricated only by coding specific phase responses of the designed metasurfaces. However, the modulation of both the amplitude and phase responses of electromagnetic waves can significantly improve the quality of the holographic image. In this paper, we employ bi-layered split rings as meta-atoms, which can fully control the transmission amplitude and phase independently. Furthermore, we present an algorithm based on the inverse angular spectrum diffraction theory to obtain the amplitude and phase information for the shape and arrangement of the meta-atoms. The proof-of-concept experiments in the microwave regime demonstrate that the inverse angular spectrum diffraction theory shows better image quality than the conventional Gerchberg-Saxton algorithm, especially when the number of meta-atoms is the same or even slightly fewer. The proposed approach provides an innovative and effective method for hologram design and expands the route to versatile applications related to holographic technologies.
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8

TSUCHIYA, Hayato, Naofumi IWAMA, Soichiro YAMAGUCHI, Ryota TAKENAKA i Mayuko KOGA. "Feasibility Study of Holography Using Microwave Scattering". Plasma and Fusion Research 14 (25.09.2019): 3402146. http://dx.doi.org/10.1585/pfr.14.3402146.

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Li, Shaozhong, i J. B. Khurgin. "Microwave-developed three-dimensional real-time holography". Optics Letters 18, nr 21 (1.11.1993): 1855. http://dx.doi.org/10.1364/ol.18.001855.

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Kumari, Vineeta, Neelam Barak i Gyanendra Sheoran. "Numerical three-step phase-shifting microwave holography". Optical Engineering 58, nr 11 (26.11.2019): 1. http://dx.doi.org/10.1117/1.oe.58.11.114107.

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11

Gaikovich, K. P., A. I. Smirnov i D. V. Yanin. "Near-Field Resonance Microwave Tomography and Holography". Radiophysics and Quantum Electronics 60, nr 9 (luty 2018): 733–49. http://dx.doi.org/10.1007/s11141-018-9842-2.

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12

Fu, L., Y. S. Gui, L. H. Bai, H. Guo, H. Abou-Rachid i C. M. Hu. "Microwave holography using a magnetic tunnel junction based spintronic microwave sensor". Journal of Applied Physics 117, nr 21 (7.06.2015): 213902. http://dx.doi.org/10.1063/1.4921887.

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13

Chalodhorn, W., i D. R. DeBoer. "Use of microwave lenses in phase retrieval microwave holography of reflector antennas". IEEE Transactions on Antennas and Propagation 50, nr 9 (wrzesień 2002): 1274–84. http://dx.doi.org/10.1109/tap.2002.801401.

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14

KOGA, Mayuko, Ryota TAKENAKA, Hayato TSUCHIYA, Ryo MANABE, Naofumi IWAMA, Shuji YAMAMOTO i Soichiro YAMAGUCHI. "Three-Dimensional Electromagnetic Field Calculation for Microwave Holography". Plasma and Fusion Research 16 (7.05.2021): 1402063. http://dx.doi.org/10.1585/pfr.16.1402063.

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Kuwahara, Yoshihiko, i Kimihito Fujii. "Near Field Microwave Holography for Bio-Tissue Imaging". Open Journal of Medical Imaging 10, nr 03 (2020): 143–50. http://dx.doi.org/10.4236/ojmi.2020.103014.

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Rahmat-Samii, Y. "Microwave holography of large reflector antennas--Simulation algorithms". IEEE Transactions on Antennas and Propagation 33, nr 11 (listopad 1985): 1194–203. http://dx.doi.org/10.1109/tap.1985.1143515.

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Larsen, Finn, Jan Pieter van der Schaar i Robert G. Leigh. "De Sitter Holography and the Cosmic Microwave Background". Journal of High Energy Physics 2002, nr 04 (25.04.2002): 047. http://dx.doi.org/10.1088/1126-6708/2002/04/047.

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18

Rochblatt, D. J., i Y. Rahmat-Samii. "Effects of measurement errors on microwave antenna holography". IEEE Transactions on Antennas and Propagation 39, nr 7 (lipiec 1991): 933–42. http://dx.doi.org/10.1109/8.86912.

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19

Tultemirova, G. U., N. T. Momunalieva i A. J. Akkozov. "COMPUTER MODEL OF HOLOGRAM SYNTHESIS BY THE REAL PHASE". Herald of KSUCTA, №2, Part 1, 2022, nr 2-1-2022 (30.04.2022): 289–94. http://dx.doi.org/10.35803/1694-5298.2022.2.289-294.

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Computer-synthesized holograms are widely used in areas such as optical information processing, image recognition, three-dimensional display of digital data, and modelling of holographic processes. It is difficult to overestimate the usefulness of the use of synthesized holograms for image reconstruction in acoustic and microwave holography. The use of synthesized holograms as elements of holographic storage devices is promising. Computer synthesis is often the only way to obtain holograms with desired properties. The main advantage of the synthesized hologram is that it is an effective means for converting digital information into optical. Due to this, it is possible to create hybrid-computing systems that are unique in performance, including digital electronic and optical processors and combining the flexibility and versatility of an electronic computer with the enormous performance inherent in an optical processor due to the parallelism of optical information processing. The use of digital holograms as elements in holographic storage devices is promising.
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20

Amineh, Reza K., Ali Khalatpour, Haohan Xu, Yona Baskharoun i Natalia K. Nikolova. "Three-Dimensional Near-Field Microwave Holography for Tissue Imaging". International Journal of Biomedical Imaging 2012 (2012): 1–11. http://dx.doi.org/10.1155/2012/291494.

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This paper reports the progress toward a fast and reliable microwave imaging setup for tissue imaging exploiting near-field holographic reconstruction. The setup consists of two wideband TEM horn antennas aligned along each other’s boresight and performing a rectangular aperture raster scan. The tissue sensing is performed without coupling liquids. At each scanning position, wideband data is acquired. Then, novel holographic imaging algorithms are implemented to provide three-dimensional images of the inspected domain. In these new algorithms, the required incident field and Green’s function are obtained from numerical simulations. They replace the plane (or spherical) wave assumption in the previous holographic methods and enable accurate near-field imaging results. Here, we prove that both the incident field and Green’s function can be obtained from a single numerical simulation. This eliminates the need for optimization-based deblurring which was previously employed to remove the effect of realistic non-point-wise antennas.
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21

Ivashov, Sergey I., Vladimir V. Razevig, Dmitriy L. Sergeev, Alexander S. Bugaev, Feng Zhou, Elena I. Prokhanova, Anastasia V. Shcherbakova, Sergey N. Dobrynin i Maxim Vasilenkov. "An Example of Microwave Holography Investigation of an Old Orthodox Russian Icon Dated to 19th Century". Heritage 5, nr 3 (19.09.2022): 2804–17. http://dx.doi.org/10.3390/heritage5030145.

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The study, preservation and restoration of the cultural heritage objects of mankind are not only of great cultural importance but also have a significant economic component because cultural values of past centuries attract tourists from all over the world. The use of modern technical and scientific achievements in the field of non-destructive testing makes it possible to obtain new knowledge about cultural objects regarding their origin and dating, as well as to contribute to their better restoration and preservation. An important component of their use is additional opportunities to identify high quality fakes of original cultural objects that have historical significance. The capabilities of various non-destructive testing (NDT) methods used to examine cultural objects are characterized by their penetration depth, resolution, and sensitivity to material properties. Thus, in many cases, it is necessary to perform multi-sensor non-destructive testing and creating large data sets that require an efficient evaluation. This article considers an example of using microwave (MW) holographic sensors for the examining of an old Orthodox Russian Icon dated of the late 19th century. The paper describes the technology of microwave holography, which has recently been applied to the examination of art works. Unlike the well-studied X-ray method, MW holography makes it possible to examine objects with one-sided access. Its other advantages are the relative cheapness of the equipment and the safety of use due to the low level of radiation. The article describes a MW holograms reconstruction algorithm, as well as a method for improving the quality of obtained MW images. The data collected at MW research of the Icon are compared with the results of X-ray examination and confirmed by subsequent opening and visual examination performed by professional restorers.
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22

Elsdon, Michael, Okan Yurduseven i David Smith. "EARLY STAGE BREAST CANCER DETECTION USING INDIRECT MICROWAVE HOLOGRAPHY". Progress In Electromagnetics Research 143 (2013): 405–19. http://dx.doi.org/10.2528/pier13091703.

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Rahmat-Samii, Y. "Correction to "Microwave holography of large reflector antennas--Simulation algorithms"". IEEE Transactions on Antennas and Propagation 34, nr 6 (czerwiec 1986): 853. http://dx.doi.org/10.1109/tap.1986.1143895.

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Gilmore, Sean W., i Roger C. Rudduck. "Enhanced imaging of reflector antenna surface distortion using microwave holography". Radio Science 24, nr 6 (listopad 1989): 763–70. http://dx.doi.org/10.1029/rs024i006p00763.

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ELSADEK, HALA, HESHAM ELDEIB, MASAKAZU UEDA, JUN HORIKOSHI i TAKASHI YABE. "Using microwave holography and microstrip antenna for 3D mouse investigation". International Journal of Electronics 81, nr 2 (sierpień 1996): 187–98. http://dx.doi.org/10.1080/002072196136850.

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26

Amineh, Reza K., Justin J. McCombe, Ali Khalatpour i Natalia K. Nikolova. "Microwave Holography Using Point-Spread Functions Measured With Calibration Objects". IEEE Transactions on Instrumentation and Measurement 64, nr 2 (luty 2015): 403–17. http://dx.doi.org/10.1109/tim.2014.2347652.

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Elsdon, M., D. Smith, M. Leach i S. J. Foti. "Experimental investigation of breast tumor imaging using indirect microwave holography". Microwave and Optical Technology Letters 48, nr 3 (2006): 480–82. http://dx.doi.org/10.1002/mop.21384.

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Zhang, Chen, Li Deng, Ling Wang, Xue Chen i Shufang Li. "Generation of Circularly Polarized Quasi-Non-Diffractive Vortex Wave via a Microwave Holographic Metasurface Integrated with a Monopole". Applied Sciences 11, nr 15 (2.08.2021): 7128. http://dx.doi.org/10.3390/app11157128.

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In this paper, a novel method for generating a circularly polarized (CP) quasi-non-diffractive vortex wave carrying orbital angular momentum (OAM), based on the microwave holographic metasurface integrated with a monopole, is proposed. This method is the combination of the non-diffraction theory and the principle of waveguide-fed-based holography and is equivalent to a superposition of two scalar impedance modulation surfaces. To verify the proposed method, a holographic metasurface generating a left-handed circularly polarized (LHCP) quasi-non-diffractive vortex wave carrying −1 mode OAM at the normal direction, was simulated and analyzed. The metasurface consisted of inhomogeneous slot units on a grounded substrate and a monopole excitation. Moreover, the location distribution of slots was determined by a computed interferogram between the reference wave and the object wave with the non-diffractive feature. Compared with an ordinary vortex wave, the quasi-non-diffractive wave obtained by our proposed method possessed a smaller divergence radius and a stronger electric field strength in the 9 times wavelength range. It paved a new path for manipulating the non-diffractive vortex wave in medium distance without using an external feeding source, which holds great potential for the miniaturization devices applied in medium-distance high-capacity secure communication, high-resolution imaging and intelligent detection.
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James, G. C., G. T. Poulton i P. M. McCulloch. "Panel setting from microwave holography by the method of successive projections". IEEE Transactions on Antennas and Propagation 41, nr 11 (1993): 1523–29. http://dx.doi.org/10.1109/8.267352.

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Amineh, Reza K., Maryam Ravan, Ali Khalatpour i Natalia K. Nikolova. "Three-Dimensional Near-Field Microwave Holography Using Reflected and Transmitted Signals". IEEE Transactions on Antennas and Propagation 59, nr 12 (grudzień 2011): 4777–89. http://dx.doi.org/10.1109/tap.2011.2165496.

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Flores-Tapia, Daniel, Diego Rodriguez, Mario Solis, Nikita Kopotun, Saeed Latif, Oleksandr Maizlish, Lei Fu, Yonsheng Gui, Can-Ming Hu i Stephen Pistorius. "Experimental feasibility of multistatic holography for breast microwave radar image reconstruction". Medical Physics 43, nr 8Part1 (19.07.2016): 4674–86. http://dx.doi.org/10.1118/1.4953636.

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Norgard, John, John Will i Carl Stubenrauch. "Quantitative images of antenna patterns using infrared thermography and microwave holography". International Journal of Imaging Systems and Technology 11, nr 4 (2000): 210–18. http://dx.doi.org/10.1002/ima.1006.

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MANABE, Ryo, Hayato TSUCHIYA i Mayuko KOGA. "Trial of Deep Learning for Image Reconstruction of Lens-Less Microwave Holography". Plasma and Fusion Research 17 (22.06.2022): 2401072. http://dx.doi.org/10.1585/pfr.17.2401072.

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Tajik, Daniel, Aaron D. Pitcher i Natalia K. Nikolova. "COMPARATIVE STUDY OF THE RYTOV AND BORN APPROXIMATIONS IN QUANTITATIVE MICROWAVE HOLOGRAPHY". Progress In Electromagnetics Research B 79 (2017): 1–19. http://dx.doi.org/10.2528/pierb17081003.

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Lopez-Perez, Jose A., Pablo de Vicente Abad, Jose A. Lopez-Fernandez, Felix Tercero Martinez, Alberto Barcia Cancio i Belen Galocha Iraguen. "Surface Accuracy Improvement of the Yebes 40 Meter Radiotelescope Using Microwave Holography". IEEE Transactions on Antennas and Propagation 62, nr 5 (maj 2014): 2624–33. http://dx.doi.org/10.1109/tap.2014.2307351.

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Yu, Hong. "Microwave holography measurement and adjustment of 25-m radio telescope of Shanghai". Microwave and Optical Technology Letters 49, nr 2 (2006): 467–70. http://dx.doi.org/10.1002/mop.22171.

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Iqbal, Shahid, Hamid Rajabalipanah, Lei Zhang, Xiao Qiang, Ali Abdolali i Tie Jun Cui. "Frequency-multiplexed pure-phase microwave meta-holograms using bi-spectral 2-bit coding metasurfaces". Nanophotonics 9, nr 3 (4.02.2020): 703–14. http://dx.doi.org/10.1515/nanoph-2019-0461.

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AbstractIn this paper, a dual-band reflective meta-hologram is designed providing two distinct information channels whose field intensity distributions can be independently manipulated at the same time. The proposed pure-phase meta-hologram is composed of several frequency-dispersive coding meta-atoms possessing each of 2-bit digital statuses of “00”, “01”, “10”, and “11” at either the lower (X-band) or the higher (Ku-band) frequency band. Relying on the weighted Gerchberg-Saxton phase retrieval algorithm, different illustrative examples have been provided to theoretically inspect the dual-band performance of our coding meta-hologram. Numerical simulations validate the proposed frequency multiplexing meta-holography with the ability to project two different high-quality images with low cross-talk on two X-band and Ku-band near-field channels located at distinct pre-determined distances from the metasurface plane. As proof of concept, two meta-hologram samples are fabricated, and the experimental results corroborate well the numerical simulations and theoretical predictions. The designed meta-hologram features all fascinating advantages of the coding metasurfaces while its performance overcomes that of previous studies due to providing two information channels rather than the conventional single-channel holography. The frequency multiplexing acquired by the proposed bi-spectral coding meta-hologram may provide great opportunities in a variety of applications, such as data storage and information processing.
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Serdyuk, Vladimir M., i Joseph A. Titovitsky. "Methods of the diffraction theory for microwave aquametry of paper materials". Journal of the Belarusian State University. Physics, nr 3 (7.10.2020): 32–45. http://dx.doi.org/10.33581/2520-2243-2020-3-32-45.

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We present a short review of several fundamental results, which have been obtained within frameworks of one trend of the wide spread of investigations, carried out during 1970 –2010s under the leadership of doctor of science, corresponding member of the National Academy of Sciences of Belarus P. D. Kukharchik, whose scientific interests were connected with the study of physical properties of heterogeneous dielectric and metal-containing industrial materials by the methods of holography, holographotomography, digital radiography, microwave and infrared introscopy. In this review, by the example of several base problems, we describe the semi-analytical methods of rigorous theoretical simulation of electromagnetic fields, arising under electromagnetic diffraction by slots in perfectly conducting screens of arbitrary thickness in absence and in the presence of plane dielectrics in the plane and cylindrical geometries of electromagnetic propagation. It demonstrates application of the these methods to simulation of processes of moisture measuring of paper sheet using microwave cavities with slots, which are employed on enterprises of pulp and paper industry.
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Liu, Jiwei, Wenbin You, Jieyi Yu, Xianguo Liu, Xuefeng Zhang, Junjie Guo i Renchao Che. "Electron Holography of Yolk–Shell Fe3O4@mSiO2 Microspheres for Use in Microwave Absorption". ACS Applied Nano Materials 2, nr 2 (23.01.2019): 910–16. http://dx.doi.org/10.1021/acsanm.8b02150.

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Kumari, Vineeta, Aijaz Ahmed, Tirupathiraju Kanumuri, Chandra Shakher i Gyanendra Sheoran. "Early detection of cancerous tissues in human breast utilizing near field microwave holography". International Journal of Imaging Systems and Technology 30, nr 2 (27.11.2019): 391–400. http://dx.doi.org/10.1002/ima.22384.

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Kumari, Vineeta, Gyanendra Sheoran i Tirupathiraju Kanumuri. "SAR analysis of directive antenna on anatomically real breast phantoms for microwave holography". Microwave and Optical Technology Letters 62, nr 1 (13.09.2019): 466–73. http://dx.doi.org/10.1002/mop.32037.

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42

Antropov, O. S., V. F. Borulko, S. M. Vovk i O. O. Drobakhin. "IMPROVEMENT OF EXTRAPOLATION-BASED MICROWAVE RANGE FOURIER HOLOGRAPHY METHOD EMPLOYING A MINIMUM-DURATION METHOD". Radio Physics and Radio Astronomy 1, nr 3 (2010): 249–56. http://dx.doi.org/10.1615/radiophysicsradioastronomy.v1.i3.80.

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Liu, Kangkang, Qian Ye i Guoxiang Meng. "Surface error diagnosis of large reflector antenna with microwave holography based on active deformation". Electronics Letters 52, nr 1 (styczeń 2016): 12–13. http://dx.doi.org/10.1049/el.2015.2725.

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Zamiri, Farshad, i Abdolreza Nabavi. "A modified Fresnel-based algorithm for 3D microwave imaging of metal objects". International Journal of Microwave and Wireless Technologies 11, nr 4 (12.09.2018): 313–25. http://dx.doi.org/10.1017/s175907871800123x.

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AbstractMicrowave holography technique reconstructs a target image using recorded amplitudes and phases of the signals reflected from the target with Fast Fourier Transform (FFT)-based algorithms. The reconstruction algorithms have two or more steps of two- and three-dimensional Fourier transforms, which have a high computational load. In this paper, by neglecting the impact of target depth on image reconstruction, an efficient Fresnel-based algorithm is proposed, involving only one-step FFT for both single- and multi-frequency microwave imaging. Numerous tests have been performed to show the effectiveness of the proposed algorithm including planar and non-planar targets, using the raw data gathered by means of a scanner operating in X-band. Finally, a low-cost and high-speed hardware architecture based on fixed-point arithmetic is introduced which reconstructs the planar targets. This pipeline architecture was tested on field programmable gate arrays operating at 200 MHz clock frequency, which illustrates more than 30 times improvement in computation time compared with a computer.
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You, Wenbin, Wen She, Zhengwang Liu, Han Bi i Renchao Che. "High-temperature annealing of an iron microplate with excellent microwave absorption performance and its direct micromagnetic analysis by electron holography and Lorentz microscopy". Journal of Materials Chemistry C 5, nr 24 (2017): 6047–53. http://dx.doi.org/10.1039/c7tc01544e.

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Tajik, Daniel, Romina Kazemivala i Natalia K. Nikolova. "Real-Time Imaging With Simultaneous Use of Born and Rytov Approximations in Quantitative Microwave Holography". IEEE Transactions on Microwave Theory and Techniques 70, nr 3 (marzec 2022): 1896–909. http://dx.doi.org/10.1109/tmtt.2021.3131227.

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Liu, Qinghe, Xianhui Xu, Weixing Xia, Renchao Che, Chen Chen, Qi Cao i Jingang He. "Dependency of magnetic microwave absorption on surface architecture of Co20Ni80hierarchical structures studied by electron holography". Nanoscale 7, nr 5 (2015): 1736–43. http://dx.doi.org/10.1039/c4nr05547k.

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Flores-Tapia, Daniel, i Stephen Pistorius. "Real time breast microwave radar image reconstruction using circular holography: A study of experimental feasibility". Medical Physics 38, nr 10 (16.09.2011): 5420–31. http://dx.doi.org/10.1118/1.3633922.

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Lu, Yichao, Wenbin You, Chenyuan Cai, Xuefeng Yu, Yunhao Zhao, Xianguo Liu, Junjie Guo, Xuefeng Zhang, Wei Zeng i Renchao Che. "Insights into the micro magnetic loss mechanism of microwave absorption by off-axis electron holography". Journal of Magnetism and Magnetic Materials 475 (kwiecień 2019): 24–29. http://dx.doi.org/10.1016/j.jmmm.2018.11.045.

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