摘要
研究了一种用于GPS接收机的自适应抗干扰方法。首先讨论了常用自适应算法的特点,分析了将其用于GPS接收机时的局限性。其次,根据GPS卫星信号的特点,对LMS算法作了改进,得到了一种适用于GPS接收机的改进自适应算法。最后,对该算法进行了计算机仿真,仿真结果表明,该算法能够抑制干扰,保留期望信号,提高天线阵输出信干噪比SINR。
A method of interference cancellation for the GPS receiver is studied. The adaptive algorithm in common use and its limitation in the GPS receiver is discussed. Based on the feature of the GPS satellite signal, and by improving the LMS algorithm, an adaptive algorithm applicable to the GPS system is obtained. Some simulation experiments have proved the validity of the proposed algorithm. The results show that the proposed adaptive algorithm can hold the desired GPS signal and improve the output SINR （signal-to-interference and noise ratio） while cancels the interference signal.
出处
《通信技术》
2008年第9期3-5,共3页
Communications Technology
基金
国家自然科学基金资助项目(60671001)
西安市工业攻关基金(GG06020)资助项目
