Dr. Genyuan Wang Profile

Dr. Genyuan Wang

at Villanova Univ

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Author

Publications (14)

Proceedings Article | 12 May 2006 Paper

Distributed MIMO-OFDM in imperfectly synchronized cooperative network

Yimin Zhang, Genyuan Wang, Moeness Amin

Proceedings Volume 6248, 62480N (2006) https://doi.org/10.1117/12.667776

KEYWORDS: Receivers, Pulse shaping, Relays, Orthogonal frequency division multiplexing, Reconstruction algorithms, Antennas, Raised cosine filters, Transmitters, Signal to noise ratio, Distributed computing

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Proceedings Article | 10 August 2004 Paper

Simple iterative method to exploit the signal space diversity

Yabo Li, Xiang-Gen Xia, Genyuan Wang

Proceedings Volume 5440, (2004) https://doi.org/10.1117/12.562324

KEYWORDS: Iterative methods, Receivers, Demodulation, Matrices, Modulation, Samarium, Optical spheres, Zinc, Forward error correction, Transmitters

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SPIE Journal Paper | 1 January 2003

Adaptive filtering approach to chirp estimation and inverse synthetic aperture radar imaging of maneuvering targets

Genyuan Wang, Xiang-Gen Xia, Victor Chen

OE, Vol. 42, Issue 01, (January 2003) https://doi.org/10.1117/12.10.1117/1.1526842

KEYWORDS: Radar, Digital filtering, Radar imaging, Detection and tracking algorithms, Synthetic aperture radar, Optical filters, Image filtering, Electronic filtering, Fourier transforms, Optical engineering

Proceedings Article | 8 March 2002 Paper

Moving-target detection in over-the-horizon radar using adaptive chirplet transform

Genyuan Wang, Xiang-Gen Xia, Benjamin Root, Victor Chen

Proceedings Volume 4738, (2002) https://doi.org/10.1117/12.458736

KEYWORDS: Target detection, Doppler effect, Signal detection, Fourier transforms, Radar, Detection and tracking algorithms, Radar signal processing, Darmstadtium, Signal processing, Electronic filtering

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Proceedings Article | 26 March 2001 Paper

Adaptive chirp-Fourier transform for chirp estimation with applications in ISAR imaging of maneuvering targets

Xiang-Gen Xia, Genyuan Wang, Victor Chen

Proceedings Volume 4391, (2001) https://doi.org/10.1117/12.421219

KEYWORDS: Radar imaging, Radar, Lithium, Fourier transforms, Detection and tracking algorithms, Digital filtering, Synthetic aperture radar, Image resolution, Interference (communication), Image filtering

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Proceedings Article | 24 August 2000 Paper

Detection, location, and imaging of fast moving targets using multifrequency antenna array SAR

Genyuan Wang, Xiang-Gen Xia, Victor Chen, Ralph Fiedler

Proceedings Volume 4053, (2000) https://doi.org/10.1117/12.396383

KEYWORDS: Antennas, Synthetic aperture radar, Target detection, Radar, CRTs, Detection and tracking algorithms, Imaging arrays, Fourier transforms, Image resolution, Roads

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Detection, location and SAR imaging of moving targets in clutter have attracted much attention. Locations of moving targets in the SAR image are determined not only by their geometric locations but also by their velocities that cause their SAR images de-focused, smeared, and mis-located in the azimuth dimension. Furthermore, the clutters may cause the detection of moving targets more difficult. Several antenna array based algorithms have been proposed to re-locate the moving targets in the SAR image. With a linear antenna array, the clutters may be suppressed using multiple phase centers. However, there are only two parameters involved in a linear antenna array, i.e., number of receiving antennas and the distance between two adjacent antennas. These two parameters physically limit the capability to detect the accurate locations of fast moving targets and such as vehicles, and only slowly moving targets, such as walking people, can be correctly re-located. In this paper, we propose an antenna array approach where transmitting single wavelength signals are generalized to transmitting multiple wavelength signals (called multi-frequency antenna array SAR). We show that, using multi-frequency antenna array SAR, not only the clutters can be suppressed but also locations of both slow and fast moving targets can be accurately estimated. For example, using two-frequency antenna array SAR system with wavelengths (lambda) ₁ equals 0.03 m and (lambda) ₂ equals 0.05 m, the maximal moving target velocity in the range direction is 1 5 m/s while using single frequency antenna array SAR system with wave length (lambda) ₁ equals 0.03 m or (lambda) ₂ equals 0.05 m, the maximal moving target velocity in the range direction are 3 m/s or 5 m/s, respectively. A robust Chinese Remainder Theorem (CRT) is developed and used for the location of fast and slowly moving targets. Simulations of SAR imaging of ground moving targets are presented to illustrate the effectiveness of the multi-frequency antenna array SAR imaging algorithm.

Proceedings Article | 2 November 1999 Paper

Iterative direction-of-arrival estimation with wideband chirp signals

Genyuan Wang, Xiang-Gen Xia, Victor Chen

Proceedings Volume 3807, (1999) https://doi.org/10.1117/12.367665

KEYWORDS: Time-frequency analysis, Sensors, Signal processing, Algorithm development, Fourier transforms, Transform theory, Interference (communication), Radar, Coastal modeling, Signal to noise ratio

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Proceedings Article | 29 September 1999 Paper

Multifrequency VSAR imaging of moving targets

Genyuan Wang, Xiang-Gen Xia, Victor Chen

Proceedings Volume 3810, (1999) https://doi.org/10.1117/12.364070

KEYWORDS: Radar, Antennas, Receivers, Synthetic aperture radar, Fourier transforms, Doppler effect, Radar imaging, Target detection, Transmitters, Image resolution

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SPIE Journal Paper | 1 September 1999

Inverse synthetic aperture radar imaging of maneuvering targets based on chirplet decomposition

Genyuan Wang, Zheng Bao

OE, Vol. 38, Issue 09, (September 1999) https://doi.org/10.1117/12.10.1117/1.602204

KEYWORDS: Doppler effect, Detection and tracking algorithms, Radar imaging, Radar, Synthetic aperture radar, Frequency modulation, Baryon acoustic oscillations, Electronic filtering, Image filtering, Fourier transforms

Proceedings Article | 13 August 1999 Paper

Dual-speed SAR imaging of moving targets

Genyuan Wang, Xiang-Gen Xia, Victor Chen

Proceedings Volume 3721, (1999) https://doi.org/10.1117/12.357629

KEYWORDS: Radar, Synthetic aperture radar, Doppler effect, Error analysis, Motion estimation, Target detection, Imaging systems, Radar imaging, Device simulation, Fourier transforms

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Proceedings Article | 22 March 1999 Paper

Synthetic aperture sonar imaging using joint time-frequency analysis

Genyuan Wang, Xiang-Gen Xia

Proceedings Volume 3723, (1999) https://doi.org/10.1117/12.342961

KEYWORDS: Doppler effect, Fourier transforms, Time-frequency analysis, Synthetic aperture radar, Radar, Motion measurement, Error analysis, Detection and tracking algorithms, Radar imaging, Signal analyzers

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Proceedings Article | 14 October 1998 Paper

Signal-to-noise ratio analysis in the joint time-frequency domain for ISAR imaging

Genyuan Wang, Xiang-Gen Xia, Victor Chen

Proceedings Volume 3462, (1998) https://doi.org/10.1117/12.326743

KEYWORDS: Signal to noise ratio, Fourier transforms, Radar, Interference (communication), Time-frequency analysis, Transform theory, Radar imaging, Doppler effect, Signal detection, Signal processing

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SPIE Journal Paper | 1 May 1998

Inverse synthetic radar imaging of maneuvering targets

Zheng Bao, Genyuan Wang, Lin Luo

OE, Vol. 37, Issue 05, (May 1998) https://doi.org/10.1117/12.10.1117/1.601670

KEYWORDS: Doppler effect, Radar imaging, Radar, Signal processing, Synthetic aperture radar, Time-frequency analysis, Fourier transforms, Electronic filtering, Optical engineering, Range imaging

SPIE Journal Paper | 1 October 1996

Inverse synthetic aperture radar imaging of nonuniformly rotating targets

Genyuan Wang, Zheng Bao, Xiaobing Sun

OE, Vol. 35, Issue 10, (October 1996) https://doi.org/10.1117/12.10.1117/1.600985

KEYWORDS: Time-frequency analysis, Radar, Synthetic aperture radar, Radar imaging, Doppler effect, Baryon acoustic oscillations, Sun, Motion models, Solids, Fourier transforms

Showing 5 of 14 publications

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