幅度误差对抗干扰性能的影响分析

Analysis of The Influence of Amplitude Error on Anti-jamming Performance

卫星导航抗干扰过程中,各个天线单元在各个方向上接收到的信号幅度在存在较大差异时,不少文章认为会造成零陷深度的急剧变浅,从而影响抗干扰性能。基于空时抗干扰技术,对幅度误差造成的抗干扰性能进行了仿真分析。结果表明,幅度误差较大时零陷深度基本无变化,对抗干扰的性能影响较小。

In the anti-jamming process of satellite navigation,when the amplitude of the signal received from each antenna unit varies greatly in all directions,previous articles have considered that the null depth will become shallow rapidly and affect the anti-jamming performance.Based on the space-time anti-jamming technology,this paper simulates and analyzes the effect of amplitude error on anti-jamming performance.The results show that the null depth almost no change when the amplitude error is large,and the influence on the anti-jamming performance is little.