摘要
使用传统PN码序列相关法所测得的多径延时的时域分辨率受到PN码片长度的限制。本文研究了一种高精度的PN相关算法，这种方法改进了传统的PN相关算法的时域分辨率。该方法依靠分解延时分布数据向量相关矩阵的特征向量空间，来得到多径传播的路径数目和高分辨率的延时分布。计算机仿真表明，该算法可以分辨出延时差在1／10码片级的两条传播路径。
The multi - path time delay based on traditional PN code series correlation algorithm is limited in time resolution,which is improved by a high-precision PN correlation method （HPCM） as described in the paper. The HPCM is based on the decomposition of the eigenvector space of the correlation matrix of delay - distribution data vector , giving the number of paths and their delay times with higher resolution. It is verified by computer simulations that the HPCM can resolve two paths with a delay difference of a few tenths of the chip interval.
出处
《电光系统》
2008年第4期20-23,28,共5页
Electronic and Electro-optical Systems
关键词
传统PN相关法
多径延时分布
特征向量分解
Conventional PN Correlation Method
Multi -path Delay Distribution
Eigendecomposition
