Blind Estimation of Long Code DSSS Signal Based On Subspace Tracking  

作　　者：Ma Chao Zhang Limin Wang Jianxiong 

机构地区：[1]Department of Electronic Information Engineering, Naval Aeronautical & Astronautical University, Yantai 264001, China

出　　处：《International Journal of Technology Management》2013年第1期80-83,共4页国际技术管理

摘　　要：Aiming at solving the blind estimation problem of dispreading spectrum sequence under low SNR, a spread-spectrum estimation algorithm based subspace tracking is studied in this paper. This method avoids the direct eigen decomposition, using the sliding window technique to obtain the code synchronization, then use segmentation subspace tracking method estimate spreading sequence and splice in a certain order to achieve pseudo-code blind estimation. The results show that the algorithm can complete the accurate estimation of PN code sequence in low SNR conditions, reduce the amount of data storage and be easy hardware implementation

关 键 词：DSSS blinding estimation of spread-spectrum waveform subspace tracking long code 

分 类 号：TN911.7[电子电信—通信与信息系统] TN914.42[电子电信—信息与通信工程]