一种补偿加速度对目标回波影响的新方法

摘要

As an example of linear frequency modulation signal, this paper analyzes the mismatch problem of target echo signal af- ter passing through matched filter under the presence of acceleration. With the cyclic statistical characteristic of LFM signal,an algo- rithm of acceleration estimation based on cyclic correlation transform is proposed. This method can effectively estimate the parameter of acceleration and solve the problem of the mismatched loss caused by acceleration. Finally,the result given by Matlab simulation shows that the method is efficient.%以雷达发射线性调频信号为例,分析了存在加速度条件下运动目标回波信号经过匹配滤波器后的失配问题,同时利用LFM回波信号的循环统计特性,提出一种基于循环相关变换的加速度估计算法,能够有效估计目标加速度参数,解决加速度带来的失配损失问题。利用Matlab进行仿真实验,验证了算法的有效性。