A Range Ambiguity Suppression Processing Method for Spaceborne SAR with Up and Down Chirp Modulation [PDF]
Sensors, 2018 Range ambiguity is one of the factors which affect the SAR image quality. Alternately transmitting up and down chirp modulation pulses is one of the methods used to suppress the range ambiguity.
Xuejiao Wen +5 more
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Reduction of Doppler and Range Ambiguity Using AES-192 Encryption-Based Pulse Coding [PDF]
Sensors, 2023 This research investigates the use of a Binary Phase Shift Key (BPSK) sequence derived from the 192-bit key Advanced Encryption Standard (AES-192) algorithm for radar signal modulation to mitigate Doppler and range ambiguities.
Luke Kamrath +2 more
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Performance & Ambiguity of Range Measurement for COMS [PDF]
Journal of Astronomy and Space Sciences, 2007 The ambiguity and performance of range measurement for COMS using tone standard was analyzed with assuming that satellite is operating at transfer-station and on-station.
Sang-Il Ahn, Dong-Chul Park
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Azimuth Phase Coding by Up and Down Chirp Modulation for Range Ambiguity Suppression
IEEE Access, 2019 High range ambiguity level will impair the spaceborne SAR image quality and hamper following SAR image applications. The range ambiguity suppression effect of the up and down chirp modulation on spaceborne SAR images is analyzed in this paper.
Wei Xu, Pingping Huang, Weixian Tan
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Method of Range Ambiguity Suppression Combining Sparse Reconstruction and Matched Filter
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022 Synthetic aperture radar (SAR) images are often affected by range ambiguity due to antenna sidelobe characteristics and pulse operating mechanism. The work of range ambiguity suppression focuses on both SAR system design and signal processing. On the one
Meng Qi +4 more
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Clutter and Range Ambiguity Suppression Using Diverse Pulse Train in Pulse Doppler System [PDF]
Sensors, 2018 Pulse Doppler (PD) systems are widely used for moving target detection, especially in scenarios with clutter. Range ambiguity, which arises from fixed parameters in waveforms, is an inherent drawback in conventional systems.
Jiacen Xu +4 more
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A range ambiguity classification algorithm for automotive LiDAR based on FPGA platform acceleration
Frontiers in Physics, 2023 In the past decade, the automotive light detection and ranging (LiDAR) has been experiencing a rapid expansion stage. Many researchers have been involved in the research of LiDARs and have installed it in vehicles as a means of enhancing autopilot ...
Haoyu Li +5 more
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Atmosphere, 2022 In this paper, a dual-polarization weather radar echo signal simulation method is proposed for the evaluation of the performance enhancement of dual-polarization weather radar systems, the optimization of signal processing algorithms and the improvement ...
Shaojun Dai +6 more
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High-Resolution and Wide-Swath SAR Imaging with Space–Time Coding Array
Remote Sensing, 2023 To achieve high-resolution and wide-swath (HRWS) synthetic aperture radar (SAR) images, this paper focuses on resolving the problem of separating range-ambiguous echoes with the space–time coding (STC) array.
Kun Yu, Shengqi Zhu, Lan Lan, Biao Yang
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A Dynamic Range Ambiguity Resolution Algorithm for Radar Seeker Based on Vote Accumulation [PDF]
Hangkong bingqi, 2021 Most of current PD radar seekers adopt multiple PRF technique and one-dimension set algorithm (OSA) to address range ambiguity. The OSA can solve the range ambiguity effectively with high robustness.
Chen Wei, Chen Jing, Cui Bingzhe, Guo Yuxia, Wang Yanyan
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