Journal of Systems Engineering and Electronics ›› 2013, Vol. 35 ›› Issue (3): 463-468.doi: 10.3969/j.issn.1001-506X.2013.03.02

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AMF and ACE detectors based on diagonal loading

LIU Wei-jian1，2， XIE Wen-chong2， Wang Yong-liang2   

  1. 1. College of Electronic Science and Engineering, National University of Defense Technology, 
    Changsha 410073, China; 2. Key Lab, Air Force Early Warning Academy, Wuhan 430019, China
  • Online:2013-03-20 Published:2010-01-03

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Abstract:

The diagonally loaded adaptive matched filter (DL-AMF) and the diagonally loaded adaptive coherence estimation (DL-ACE) are analyzed. The asymptotically statistical distributions are investigated and the analytical expression of their probabilities of false alarm (PFA’s) and probabilities of detection (PD’s) are derived. Compared with the AMF and the ACE, the PD’s of both the DL-AMF and the DL-ACE are improved dramatically, especially when the number of the secondary data is limited. In addition, they both possess the property of the asymptotically constant false alarm rate (CFAR).

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