一种用于伪码测距的频域非线性估计算法  

A Nonlinear Algorithm for Pseudo Code Ranging in Frequency Domain

作　　者：王艳君[1] 

机构地区：[1]中国电子科技集团公司第54研究所,河北石家庄050081

出　　处：《无线电工程》2007年第2期38-39,共2页Radio Engineering

摘　　要：针对伪码测距领域常用的脉冲计数法所需系统工作时钟过高,以及码环抖动对测量精度影响较大的问题,提出了一种可以准确的测量出接收伪码同步误差的频域非线性估计算法。仿真结果表明,该算法可以以较低的处理时钟频率获得较小的测量误差,且测量精度对码环跟踪的抖动不敏感。A nonlinear estimation algorithm for pseudo code ranging in frequency domain was presented in this paper against the difficulties of high work clock needed in the traditional pulse-counting-based method and the deleterious effect of the code circus＇ s jitter on the measure accuracy, It Can correctly measure the synchronization error of the received pseudo code. Computer simulation shows that, compared with the traditional pulse-counting based method, this algorithm can acquire less measurement error with lower processing clock frequency, and the ranging precision is not sensitive to the jitter of the code circus tracking.

关 键 词：测距 伪码测距 频域非线性估计 

分 类 号：TP965[自动化与计算机技术]