A Doubly Parameterized Detector for Mismatched Signals

作者：Liu Weijian^*; Xie Wenchong; Zhang Qianping; Li Rongfeng; Duan Keqing; Wang Yongliang

来源：Chinese Journal of Electronics, 2015, 24(1): 152-156.

DOI：10.1049/cje.2015.01.025

• Constant false alarm rate (CFAR)
• Mismatched signal
• Multichannel signal
• Tunable detector

In this paper, we consider the problem of adaptive multichannel signal detection in the presence of signal mismatch, and introduce a novel tunable detector, which is parameterized by two tunable parameters. It has the Constant false alarm rate (CFAR) property and covers Kelly's generalized likelihood ratio test (KGLRT), Adaptive matched filter (AMF), and Adaptive coherence estimator (ACE) as its three special cases. The novel detector controls the mismatched signal by adjusting two tunable parameters. Remarkably, it can achieve improved detection performance for matched signals, enhanced rejection of seriously mismatched signals, and better robustness to slightly mismatched signals than its natural competitors.

• 出版日期2015-1
• 单位中国人民解放军国防科学技术大学; 武汉理工大学