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Signal decomposition of HF radar maneuvering targets by using S^2-method with clutter rejection 被引量:1

Signal decomposition of HF radar maneuvering targets by using S^2-method with clutter rejection
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摘要 Multiple maneuvedng targets signal processing in high frequency radar is challenging due to the following difficulties: the interference between signals is severe because of significant spread of the target Doppler spectrum, the low signal to clutter ratio (SCR) environment degrades the performance of signal process- ing algorithms. This paper addresses this challenging problem by using an S2-method and an adaptive clutter rejection scheme. The proposed S2-method improves the S-method by eliminating inter- ference between signals, and thus it enables multi-target signals to be reconstructed individually. The proposed adaptive clutter rejec- tion scheme is based on an adaptive notch filter, which is designed according to the envelop of the clutter spectrum. Experiments with simulated targets added into radar sea clutter echo and real air target data illustrate the effectiveness of the proposed method. Multiple maneuvedng targets signal processing in high frequency radar is challenging due to the following difficulties: the interference between signals is severe because of significant spread of the target Doppler spectrum, the low signal to clutter ratio (SCR) environment degrades the performance of signal process- ing algorithms. This paper addresses this challenging problem by using an S2-method and an adaptive clutter rejection scheme. The proposed S2-method improves the S-method by eliminating inter- ference between signals, and thus it enables multi-target signals to be reconstructed individually. The proposed adaptive clutter rejec- tion scheme is based on an adaptive notch filter, which is designed according to the envelop of the clutter spectrum. Experiments with simulated targets added into radar sea clutter echo and real air target data illustrate the effectiveness of the proposed method.
出处 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2012年第2期167-172,共6页 系统工程与电子技术(英文版)
基金 supported by the State Key Program of National Natural Science Foundation of China(61032011)
关键词 multiple maneuvering target high frequency (HF)radar time-frequency analysis adaptive clutter rejection. multiple maneuvering target, high frequency (HF)radar, time-frequency analysis, adaptive clutter rejection.
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  • 8Fabrizio G A, Abramovich Y I, Anderson S I, et al. Adaptive Cancellation of Nonstationary Intefference in HF Antenna Arrays[J]. IEE Proc.Pt. F, 1998, 145(1): 19-24.
  • 9Khan R H, Gamberg B, Power D, et al. Target Detection and Tracking with a High Frequency Ground Wave Radar [ J ] . IEEE Journal of Oceanic Engineering, 1994, 19(4): 540 - 548.
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