一种改进的功率倒置卫星导航抗干扰方法  

Modified Power Inversion Algorithm for Anti-Jamming Satellite Navigation

作　　者：江城[1] 王晓宇[2] JIANG Cheng;WANG Xiaoyu

机构地区：[1]空军装备研究院,北京100094 [2]中国电子科技集团公司第二十研究所,西安710068

出　　处：《现代导航》2016年第4期252-255,共4页Modern Navigation

摘　　要：提出了一种改进的功率倒置卫星导航抗干扰算法。首先,通过理论分析得出影响功率倒置算法对弱功率干扰抑制效果的主要因素为功率倒置最优权中对应于弱干扰信号的特征权分量;然后,略去功率倒置最优权中对应于弱干扰信号的特征权分量,直接采用归一化的对应于噪声信号的特征权分量作为最优权。采用本文所提改方法得到的最优权可以同时有效地抑制强干扰信号和弱干扰信号。通过计算机仿真试验验证本文所提方法的有效性。A modified power inversion algorithm for anti-jamming satellite navigation is proposed in this paper. First, themain factor that degraded the performance in feebleness jamming environment is abstracted by theoretical analyzing. Then, takingout the eigenvectors corresponding to the feebleness jamming form the power inversion optimum weights and the normalizedeigenvectors corresponding to the noise is used as the optimum power inversion weights vectors. Strong and feebleness jammingsignals could be degraded by using the method proposed in this paper. The computer simulation results verify the effectiveness of themethod in this paper.

关 键 词：卫星导航 干扰 功率倒置 改进 

分 类 号：TN911[电子电信—通信与信息系统]