论文部分内容阅读
从基于一次观察的双择Ｂａｙｅｓ接收机在低信噪比工作状态下存在不稳定工作点出发，详细分析了Ｎｅｙｍａｎ－Ｐｅａｒｓｏｎ接收机和Ｍｉｎｉｍａｘ接收机的工作特性，特别指出了在低信嗓比时，Ｎｅｙｍａｎ－Ｐｅａｒｓｏｎ接收机和Ｍｉｎｉｍａｘ接收机仍能稳定工作，并讨论了低信噪比时接收机的判决策略。所以，在低信嗓比时，Ｂａｙｅｓ接收机避开不稳定工作点的方法是改变工作状态，以使接收机能够提供有效判决。
Based on the observation that the dual-choice Bayes receiver has unstable operation under low signal-to-noise ratio, the operating characteristics of Neyman-Pearson receiver and Minimax receiver are analyzed in detail. In particular, , The Neyman-Pearson receiver and the Minimax receiver still work stably, and the receiver’s decision strategy at low signal-to-noise ratio is discussed. So, at low signal-to-noise ratios, the Bayes receiver’s method of avoiding unstable operating points is to change the operating state so that the receiver can provide a valid decision.