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ECA-CMAP Clutter Suppression Method for Passive Bistatic Radar
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Shiyuan LIANG, Jiameng PAN, Qinglong BAO, Huaitie XIAO
Radar Science and Technology | 2025, 23(5) : 540 - 550
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Radar Science and Technology | 2025, 23(5): 540-550
ECA-CMAP Clutter Suppression Method for Passive Bistatic Radar
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Shiyuan LIANG, Jiameng PAN, Qinglong BAO, Huaitie XIAO
Affiliations
  • College of Electronic Science and Technology, National University of Defense Technology, Changsha 410073, China
doi: 10.3969/j.issn.1672-2337.2025.05.008
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Passive bistatic radar (PBR) avoids electromagnetic interference to a great extent because of the layout mode of transmitting and receiving separately. However, it faces a lot of short-range ground clutter interference in its work, and it is difficult to detect the target when it is submerged in a lot of clutter, especially for PBR with pulse radar as its external radiation source, the clutter processing is more difficult. In this paper, a time-domain monopulse extensive cancellation algorithm-clutter map (ECA-CMAP) clutter suppression method is proposed for PBR with pulse radar as external radiation source, aiming at the problem that it faces a large number of short-range ground clutter to cover up the target in practical work. Firstly, based on the classical time domain clutter suppression method ECA (extensive cancellation algorithm), an improved scheme based on clutter time delay estimation is proposed, which can suppress short-range ground clutter and keep the target intact, and the signal-to-clutter ratio is increased by nearly 50dB, and the target detection probability is further improved by using Nitzberg clutter map algorithm. Simulation and result of measured data processing verify the effectiveness of the algorithm.

passive bistatic radar  /  moving target detection  /  ground clutter suppression  /  time domain extensive cancellation  /  clutter map  /  monopulse processing
Shiyuan LIANG, Jiameng PAN, Qinglong BAO, Huaitie XIAO. ECA-CMAP Clutter Suppression Method for Passive Bistatic Radar[J]. Radar Science and Technology, 2025 , 23 (5) : 540 -550 . DOI: 10.3969/j.issn.1672-2337.2025.05.008
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doi: 10.3969/j.issn.1672-2337.2025.05.008
  • Receive Date：2025-01-22
  • Online Date：2026-04-23
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  • Received：2025-01-22
  • Revised：2025-04-28
Affiliations
    College of Electronic Science and Technology, National University of Defense Technology, Changsha 410073, China
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