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本文研究窄带非高斯噪声中窄带信号的离散时间检测。考虑三种情形的信号:已知初相的相参脉冲串,未知初相的相参脉冲串,以及非相参脉冲串。在本文第一部分,对每种信号分别导出局部最佳检测器的结构,指出它们可在窄带高斯噪声中的Neyman-Pearson最佳检测器里引入适当的零记忆非线性处理而成,并且许多实用检测器具有与局部最佳检测器相同类型的结构,只是细节特性不同。导出每类检测器功效和渐近相对效率的通用表达式,以及它们在若干重要检测器情况下的具体表达式,这些检测器是局部最佳、线性、平方律、Dicke-fix、对数、二进积累、中位数检测器。
In this paper, the discrete-time detection of narrow-band signals in narrow-band non-Gaussian noise is studied. Consider three cases of signals: a coherent pulse train of known initial phase, a coherent pulse train of unknown initial phase, and a non-coherent pulse train. In the first part of this paper, the structures of the local best detectors are derived separately for each signal, pointing out that they can be introduced into the Neyman-Pearson best detector for narrow-band Gaussian noise by introducing appropriate zero-memory nonlinearities and many practical The detector has the same type of structure as the local best detector, but with different details and characteristics. General expressions for deriving the efficiency and asymptotic relative efficiency of each type of detector and their specific expressions for several important detectors are locally best, linear, square law, Dicke-fix, logarithm, Binary accumulation, median detector.