关键词: 空时自适应, 多级维纳滤波, 抗干扰

Abstract:

Based on the spacetime adaptive antijamming technology in the global satellite positioning system, the research and implementation of the antijamming system based on MultiStage Nested Wiener Filter(MSNWF) discussed. The whole antijamming performance of the system is studied by means of the modeling of the space time adaptive processing and algorithm. Through the field test, the system can realize the function of anti jamming, and can inhibit the interference of multiple narrowband and broadband, the suppression effect is reached 50~70 dB, and the whole anti interference ability of the receiver is reached 70 dB.

Key words: space , time adaptive, multi , stage nested wiener filter, anti jamming