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一、引言近年来,象在被动声纳基阵中出现的那类检测随机时空信号的问题已引起人们极大的注意。最佳检测器的结构和性能已经确定,并且已经和那些从实现观点来看引人注目的次最佳设计进行了此较。本文讨论信号处理问题中的第二阶段,即和方位角以及距离这样的参数有关的信息的提取问题。从最一般的观点来看,检测和参数估计没有本质上的差别。我们可以把它们都看作是参数估计问题。如果我们对目标定向威兴趣,那么我们要估计的是从0至2π连续变化的参数。
I. INTRODUCTION In recent years, the issue of detecting random spatiotemporal signals like those appearing in passive sonar arrays has drawn great attention. The structure and performance of the best detector have been determined and have been compared with sub-optimal designs that attract attention from an implementation point of view. This article discusses the second phase of signal processing issues, namely the extraction of information related to azimuth and parameters such as distance. From the most general point of view, there is no essential difference between detection and parameter estimation. We can all think of them as parameter estimation problems. If we are interested in the target orientation, then we want to estimate the parameters that vary continuously from 0 to 2π.