摘要
要寻找比匹配滤波器检测能力更强的新处理器，只能在时变滤波和高阶处理领域去探索。本项研究将ALE推广为APSE。ALE是在带限白噪声背景中检测未知频率CW信号的有效检测器，其检测其它任意周期信号时效果较差，而APSE可有效检测任意波形周期性脉冲序列。仿真试验表明新型处理器的检测阈显著低于匹配滤波器。找到了一种在理想条件下及多途信道条件下检测能力均优于最佳线性时不变的匹配滤波器的新处理器。
in order to seek a new processor the detective ability of which is stronger than match filter,we must resort to the field of time-variant and high-order processor. APSE is the extension of ALE. ALEcan only effectively detect CW signal and APSE can enhance any periodic signals effectively. Throughsimulational research, we conclude that this processor has lower detective threshold than match filter.We have found a new processor the detective ability of which is better than match filter in both the ideal and multipath channel.
出处
《声学学报》
EI
CSCD
北大核心
1998年第5期422-429,共8页
Acta Acustica
基金
国家自然科学基金
