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Unresolved Rayleigh target detection using monopulse measurements

机译:使用单脉冲测量的未解决的瑞利目标检测

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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
机译:当来自两个或多个目标的返回信号在单脉冲雷达系统中发生干扰(即信号未在频域或时域内解析)时,由单脉冲比表示的到达方向(DOA)估计值可能会远远超出目标的角度分离。利用以目标回波的测得幅度为条件的概率密度函数(pdfs),开发了未解析瑞利目标存在的广义最大似然(GML)检测。 Neyman-Pearson检测算法使用单脉冲比率的同相和正交部分,并且不需要先验知识的任何一个目标的信噪比(SNR)或DOA。给出了接收机工作特性(ROC)曲线以及仿真结果,这些结果说明了该算法的性能和应用

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