通道不一致下自适应调零天线干扰抑制度分析  

An Anti-Interference Suppression Analysis of Adaptive Zero-Adjustment Antenna Under Channel Inconsistency

作　　者：柳丰收 郭保稳 路君里 

机构地区：[1]西安航天恒星科技实业(集团)公司,西安710010

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

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.

关 键 词：通道带内失配 阵列天线 抗干扰 空频联合处理 空时联合处理 

分 类 号：TN973.31[电子电信—信号与信息处理]