Results 31 to 40 of about 77 (75)

A Generalized Wavefront-Curvature-Corrected Polar Format Algorithm to Focus Bistatic SAR Under Complicated Flight Paths

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2020
Bistatic synthetic aperture radar (BiSAR) imaging is faced with two major challenges: large scene imaging and adaptability to unideal platform motion in practice. In order to deal with these two problems, a generalized wavefront-curvature-corrected polar
Yuxuan Miao, Junjie Wu, Zhongyu Li, Jianyu Yang   +3 more
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Dual-channel Clutter Cancellation Processing Method via Space-time Decoupling for Airborne BiSAR

Leida xuebao
Clutter suppression is an important technology for moving target indication. However, for Bistatic Synthetic Aperture Radar (BiSAR) moving target indication, traditional space-time adaptive processing and displaced phase center antenna methods cannot ...
Jun’ao LI, Zhongyu LI, Qing YANG, Junjie WU, Jianyu YANG   +4 more
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Azimuth Multichannel Reconstruction for Moving Targets in Geosynchronous Spaceborne–Airborne Bistatic SAR

Remote Sensing, 2020
In a multichannel geosynchronous spaceborne–airborne bistatic synthetic aperture radar (GEO-SA-BiSAR) system, the airborne receiver can obtain high-resolution microwave images with good signal-to-noise ratios (SNRs) by passively receiving echoes from the
Wei Xu, Zhengbin Wei, Pingping Huang, Weixian Tan, Bo Liu, Zhiqi Gao, Yifan Dong   +6 more
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Preliminary Exploration of Coverage for Moon-Based/HEO Spaceborne Bistatic SAR Earth Observation in Polar Regions

Remote Sensing
To address the challenge of achieving both temporal consistency and spatial continuity in Earth observation data of polar regions, this paper proposes an innovative concept of Moon-based/Highly Elliptical Orbit (HEO) Spaceborne Bistatic Synthetic ...
Ke Zhang, Huadong Guo, Di Jiang, Chunming Han, Guoqiang Chen   +4 more
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A Modified Frequency Domain Imaging Method for One-stationary Bistatic SAR

Leida xuebao, 2014
Bistatic Synthetic Aperture Radar (BiSAR) in one-stationary mode has many advantages over the traditional monostatic SAR. Its echo, however, shows serious space variance in both range and azimuth directions due to its complex imaging geometry, making it ...
Jin Ri-chu, Wang Yu, Deng Yun-kai, Shao Yun-feng, Zhao Shuo   +4 more
doaj   +1 more source

A Frequency Domain Backprojection Algorithm Based on Local Cartesian Coordinate for Generally Bistatic SAR With Curve Track

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Bistatic synthetic aperture radar (BiSAR) provides enhanced angle-of-view information compared to monostatic SAR, offering improved target detection capabilities.
Xuan Song, Xi Cen, Yachao Li, Yonghua Fan, Peiyun An   +4 more
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A Comprehensive Method of Ambiguity Suppression for Constellation of Geostationary and Low Earth Orbit SAR

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2020
ConGalSAR is a novel SAR constellation that has an outstanding performance of revisit and economy. In the system, with the MirrorSAR technology, one geostationary illuminator and several economical low earth orbit transponders work together to achieve a ...
Peng Xiao, Wei Guo, Youming Wu, Bo Liu
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An Improved NLCS Algorithm Based on Series Reversion and Elliptical Model Using Geosynchronous Spaceborne–Airborne UHF UWB Bistatic SAR for Oceanic Scene Imaging

Remote Sensing
Geosynchronous spaceborne–airborne (GEO-SA) ultra-high-frequency ultra-wideband bistatic synthetic aperture radar (UHF UWB BiSAR) provides high-precision images for marine and polar environments, which are pivotal in glacier monitoring and sea ice ...
Xiao Hu, Hongtu Xie, Shiliang Yi, Lin Zhang, Zheng Lu   +4 more
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Bistatic SAR: State of the Art and Development Trend

Leida xuebao, 2012
Bistatic SAR (BiSAR) systems have attracted the interests from global researchers and become a hotspot in the international radar community due to the progress of radar technology and rapidly increased applications nowadays.
Zeng Tao
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Imaging Algorithm for Bistatic SAR Based on GNSS Signal

Leida xuebao, 2013
In this paper imaging processing method for Bistatic Synthetic Aperture Radar (BiSAR) utilizing navigation satellite is investigated. Considering the special problems of using Global Navigation Satellite System (GNSS) signal to form SAR image, direct ...
Tian Wei-ming, Zeng Tao, Hu Cheng
doaj