复合干扰条件下跳频信号参数估计方法

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中图分类号： TN971+.1 文献标志码：A

LIU Lianzhao，LU Sitan，WANG Daoyou，LU Meng，YANG Yinglei （Unit 63892 of PLA，Luoyang ，Henan，China）

Abstract：Under the condition of composite interference，it is difficult to accurately estimate the parameters of the hopping signal. Morphological filtering and time-frequency spectrum cancellation technology is adopted to analyze the accuracy of hopping signal parameter estimation in the environment of fixed frequency，sweeping frequency，and impulse interference.Morphological filtering is used to filter out sweeping frequency and impulse interference，and time-frequency spectrum cancellation is used to filter out fixed frequency interference.Through experimental simulation，the error of hopping signal parameter estimation under different noise intensity conditions was compared，and the ideal precision parameter estimation signal-to-noise ratio can reach O dB.The results show that this method is suitable for hopping parameter estimation under complex interference conditions and provides a certain reference for communication reconnaissance research under strong interference conditions.

Key words：hopping signal; parameter estimation; morphological filtering; time spectrum cancellation；compound interference

0 引言

在现代通信技术迅速发展的背景下，跳频信号技术作为一种有效的抗干扰手段，在各种通信系统中扮演着至关重要的角色。（剩余5459字）