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Feb. 2023
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Article Navigation> JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY> 2023> 32(1): 124-130
Xiaojing Su, Da Xu, Dongsheng Zhu. A New Two-Stage Tunable Space-Time Adaptive Detector[J]. JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 2023, 32(1): 124-130. doi: 10.15918/j.jbit1004-0579.2022.107
Citation: Xiaojing Su, Da Xu, Dongsheng Zhu. A New Two-Stage Tunable Space-Time Adaptive Detector[J].JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 2023, 32(1): 124-130.doi:10.15918/j.jbit1004-0579.2022.107
shu

A New Two-Stage Tunable Space-Time Adaptive Detector

doi:10.15918/j.jbit1004-0579.2022.107
  • 1.

    Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China. University of Chinese Academy of Sciences, Beijing 100049, China

  • 2.

    Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China

Funds:This work was supported by the National Natural Science Foundation of China(No. 61971412).
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  • Author Bio:

    Xiaojing Sureceived the M.S. degree from the Graduate University of Chinese Academy of Sciences, Beijing, China, in 2012. She is currently pursuing the Ph.D. degree with the Institute of Acoustics Chinese Academy of Sciences, Beijing, China. Her research interests include space-time signal processing, signal detection and underwater acoustic signal processing

    Da Xureceived the Ph.D. degree from the University of Chinese Academy of Sciences, Beijing, China, in 2021. He is one of the first batch of distinguished researchers with the Institute of Acoustics, Chinese Academy of Sciences. His research interests include radar signal processing, space-time signal processing, adaptive signal processing and signal detection

    Dongsheng Zhureceived the M.S. degree in Control Theory and Control Engineering from Yanshan University, Qinhuangdao, China, in 2016. He is currently a research assistant with the Institute of Acoustics, Chinese Academy of Sciences, Beijing. His research interests include CFAR detection, STAP and underwater acoustic signal processing

  • Corresponding author:xxj@mail.ioa.ac.cn
  • Received Date:2022-09-26
  • Rev Recd Date:2023-01-06
  • Accepted Date:2023-01-09
  • Publish Date:2023-02-28
    Abstract
  • In order to improve the rejection capability of mismatched interferer signals, a new two-stage detector is proposed under homogeneous scenarios with unknown covariance matrix, which is obtained by cascading the adaptive matched filter (AMF) detector and the enhanced RAO (EnRAO) detector. The new detector has constant false alarm performance, and the closed-form expression of probability of false alarm and probability of detection is derived. The performance of the new detector is assessed, and analyzed in comparison with other detectors. The results show that, the proposed detector can provide enhanced rejection capability in the case of mismatch, but the performance of the detector is slightly lost under the condition of matching.
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    • References (19)
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