基于CIC滤波器和madζ检测法的多频脉冲信号检测与估计

摘要

在多频脉冲信号检测与估计的算法中,通过采用三级CIC滤波器实现对多个频率脉冲信号的快速检测,采用传统的能量检测和madζ法联合检测的方法实现了信号频率等参数的准确估计.实验验证该算法满足在复杂背景噪声下可靠地检测多频水声脉冲信号,数据处理算法的有效性得到了验证.%In the algorithm of detection and estimation for multi-frequency pulse signals, the fast detection for multi-frequency pulse signals are achievedby using the three-stage CIC filters. A joint detection method using the traditional energy detection and madζ method is used in the exact estimation for the signal parameters, such as signal frequency etc.The processing results from trial data show that the algorithm could effectively detect the underwater acoustics multi-frequency pulse signals in the complicated background noises, the validity of the proposed algorithm is verified.