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目標引入干擾條件下的Wald檢測器

楊海峰,  謝文沖,  唐瑭,  羅玉文,  劉維建,  王永良

楊海峰, 謝文沖, 唐瑭, 羅玉文, 劉維建, 王永良. 目標引入干擾條件下的Wald檢測器[J]. 電子與信息學報, 2017, 39(9): 2212-2218. doi: 10.11999/JEIT161333
引用本文: 楊海峰, 謝文沖, 唐瑭, 羅玉文, 劉維建, 王永良. 目標引入干擾條件下的Wald檢測器[J]. 電子與信息學報, 2017, 39(9): 2212-2218. doi: 10.11999/JEIT161333
YANG Haifeng, XIE Wenchong, TANG Tang, LUO Yuwen, LIU Weijian, WANG Yongliang. Wald Tester for Signal Detection in the Presence of Target-induced Interference[J]. Journal of Electronics & Information Technology, 2017, 39(9): 2212-2218. doi: 10.11999/JEIT161333
Citation: YANG Haifeng, XIE Wenchong, TANG Tang, LUO Yuwen, LIU Weijian, WANG Yongliang. Wald Tester for Signal Detection in the Presence of Target-induced Interference[J]. Journal of Electronics & Information Technology, 2017, 39(9): 2212-2218. doi: 10.11999/JEIT161333

目標引入干擾條件下的Wald檢測器

doi: 10.11999/JEIT161333
基金項目: 

國家自然科學基金青年基金(61501505, 61501506)，湖北省自然科學基金(2015CFB607)

Wald Tester for Signal Detection in the Presence of Target-induced Interference

Funds: 

The National Natural Science Foundation of China (61501505, 61501506), Hubei Provincial Natural Science Foundation (2015CFB607)

  • 摘要: 多徑效應(yīng)或多輸入多輸出(MIMO)雷達發(fā)射波形不完全正交的情況下會引入干擾，此種干擾通常被稱為目標引入干擾。針對存在目標引入干擾的目標檢測問題，該文基于Wald準則提出適用于均勻環(huán)境和非均勻環(huán)境下的自適應(yīng)檢測器，所提出的檢測器可有效抑制目標引入的干擾，且具有恒虛警率(CFAR)特性。仿真結(jié)果表明，當干擾子空間已知時，該文所提出的檢測器可完全抑制干擾，當干擾子空間未知時，所提檢測器可有效抑制位于信號子空間的正交補空間內(nèi)的干擾。
    Abstract: In radar system, the target-induced interference often arises due to multipath effect or non-ideal transmit waveform of Multiple-Input Multiple-Output (MIMO) radar. For the issue of detecting a target with target-induced interference, the detectors are proposed based on the design criterion of Wald test both in the homogeneous environment and partially homogeneous environment. The proposed detectors are proved to be effective for suppressing the target-induced interference and they can ensure the desirable Constant False Alarm Rate (CFAR) property with respect to the unknown parameters of the noise. Simulation results show that the proposed detectors can suppress the interference effectively when the interference subspace is known, and can suppress the interference lying in the orthogonal complement space of the nominal signal subspace when the interference is completely unknown.
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出版歷程
  • 收稿日期:  2016-12-08
  • 修回日期:  2017-04-19
  • 刊出日期:  2017-09-19

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