雷达杂波谱参量估计及其在自适应滤波中的应用

本文结合自适应滤波技术在地面监视雷达信号处理中的工程应用,提出一种利用自相关法实时估计杂波谱参量,并根据统计参量自适应控制滤波器的方法.采用门限判决法,改善了杂波空域分布不均匀和目标引入对杂波谱参量估计带来的误差.文中特别对自适应滤波技术的实际工程应用问题进行分析讨论.经理论分析和计算模拟论证了该方法的正确性和可行性.最后结合工程实践,给出采用TMS32020数字信号处理器实现杂波谱参量估计和自适应控制滤波器的方案设想.

Estimation of the parameters of radar clutter spectrum and the application in the adaptive filtering

It is put forward a method of estimating the parameters of clutter spectrum with the autocovariance algorism in real time,and adaptive controlling filters according to the statistical parameters for the application of the adaptive filtering in the engineering to the ground surveillance radar.The non-uniform distribution of clutter in space field and.the error of the estimators of the clutter spectrum parameters with the targets are improved using the threshold method,The practicable subjects of the applying the adaptive filter technique to the engineering are discussed especially.The method is verified and is practicable through the theoretic analysis and the computer simulation,For the application in the engineering the tentative plan-the implementation of the estimator of clutter spectrum parameters and the adaptive controlling filter with TMS 32020 DSP is presented.