摘要
通过子空间分析法给出通道失配引起干扰子空间扩张、抗干扰自由度降低及干扰抑制度降低的结论。通过MATLAB,仿真了干扰子空间扩张对抗干扰性能的影响,对比了空时联合处理(STAP)与空频联合处理(SFAP)两种高自由度算法对干扰抑制度的改善,分析了DFT点数对SFAP算法性能的影响。
Through the subspace analysis,interference subspace is expanded. The anti-interfer- ence freedom and the interference suppression degree are reduced for channel mismatch. The in- fluence of the interference subspace expansion on the anti-interference performance is simulated by MATLAB, and the improvement of the interference suppression is compared with two kinds of high degree of freedom algorithm： STAP and SFAP. The influence caused by the DFT points is analyzed on performance of SFAP algorithm.
出处
《电子信息对抗技术》
2017年第3期67-70,79,共5页
Electronic Information Warfare Technology
