浅海声信道中脉位信息检测的抗信号起伏
Research on Anti Signal Fluctuation for Detecting Pulse Position Information in Shallow Water Acoustic Channels
Abstract
浅海声信道中脉位信息的精确检测是较为困难的，它必须克服强多途、大起伏和高噪声的严重干扰.着重分析浅海声信道中信号振幅和重复周期起伏的主要特性及其对脉位信息精确检测的影响，指出克服信号起伏的可能的途径.所讨论的内容对其他的信号检测方式具有参考价值. It is relatively difficult that the pulse position information is detected exactly in shallow water acoustic channels,which has to overcome the severe interference coming from strong multipath,large fluctuation and high noise.The main characteristics of fluctuation for signal amplitudes and repetition periods,and their effects on detection of the pulse position infonmation are analysed .The possible ways to overcome signal fluctuation are proposed.The discussed contents in the present work are of referenca value to other mode of signal detection in principle.