基于局域模板的STAP非均匀检测器

摘要

The key mechanism of strong target influence over the STAP nonhomogeneous detector was analyzed.Then,considering the declining performance of nonhomogeneous detector with strong interference targets,and the high computational complexity of traditional APR method,a new nonhomogeneous detector based on local template was presented.Compared with the traditional methods,the method proposed can obtain high computational efficiency and more robust detection performance.Finally,experiments with the actual data proved the effectiveness of the proposed model.%分析了STAP(Space Time Adaptive Processing)中强干扰目标影响传统非均匀检测器性能的机理,针对强干扰目标引起的非均匀检测器性能下降和传统自适应功率剩余(APR)方法运算量大的问题,提出了一种基于局域模板的非均匀检测器(Local Template NHD,LT-NHD).该方法不需要进行协方差矩阵求逆的耗时运算,便能获得较高的运算效率；此外,其检测不易受训练样本中的强目标样本影响,能获得比传统方法更为鲁棒的检测性能.实测数据实验验证了本文方法的有效性.