卫星导航高精度抗干扰算法研究

常用的自适应调零卫星导航抗干扰算法，可以对干扰进行很好的抑制，但自适应调零算法会对卫星信号的相位产生扭曲，导致抗干扰处理后的卫星信号无法用于高精度定位。研究数字多波束抗干扰算法，通过对卫星方向信号约束，达到在抗干扰的同时保证卫星信号相位稳定，实现高精度定位。该算法经分析和实际采样数据仿真验证，可实现强干扰条件下卫星导航高精度定位。

Research on High Precision Anti-Jamming Algorithm

The commonly used anti-jamming algorithm for adaptive zeroing satellite navigation can well suppress theinterference, but the anti-jamming will distort the phase of the satellite signal, resulting in that the satellite signal after anti-jammingcannot be used for high-precision positioning. The digital multi beam anti-jamming algorithm is studied. By constraining the satellitedirectional signal, the anti-jamming is achieved while ensuring the phase stability of the satellite signal to achieve high-precisionpositioning. The algorithm analysis and actual sampling data is simulated and verified.