Unresolved Rayleigh target detection using monopulse measurements

被引:87
作者
Blair, WD
Brandt-Pearce, M
机构
[1] Univ Virginia, Dept Elect Engn, Charlottesville, VA 22903 USA
[2] Naval Surface Warfare Ctr, Silver Spring, MD 20903 USA
关键词
D O I
10.1109/7.670335
中图分类号
V [航空、航天];
学科分类号
08 ; 0825 ;
摘要
When the returns from two or more targets interfere (i.e., the signals are not resolved in the frequency or time domains) in a monopulse radar system, the direction-of-arrival (DOA) estimate indicated by the monopulse ratio can wander far beyond the angular separation of the targets. Generalized maximum likelihood (GML) detection of the presence of unresolved Rayleigh targets is developed with probability density functions (pdfs) conditioned on the measured amplitude of the target echoes. The Neyman-Pearson detection algorithm uses both the in-phase and quadrature portions of the monopulse ratio and requires no a priori knowledge of the signal-to-noise ratio (SNR) or DOA of either target. Receiver operating characteristic (ROC) curves are given along with simulation results that illustrate the performance and application of the algorithm.
引用
收藏
页码:543 / 552
页数:10
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