Research on the Bit Synchronization Algorithm and Multiplexing Technology in GNSS Receiver  

作　　者：QI Jianzhong SONG Peng 

机构地区：[1]School of Computer and Communication Engineering, University of Science and Technology Beijing, Beijing 100083, ER. China [2]North China University of Technology, Beijing 100041, P. R. China

出　　处：《China Communications》2014年第A02期30-36,共7页中国通信（英文版）

基　　金：the National Natural Science Foundation of China under Grant，the China Postdoctoral Science Foundation under Grant No.2013M530526，the Fundamental Research Funds for the Central Universities under Grant No.FRF-TP-14-046A2

摘　　要：In this paper, the bit synchronization algorithms in GNSS receiver are introduced, including the traditional histogram method, K-P algorithm and Viterbi algorithm. The FPGA implementation is also included. A novel time division multiplexing technology （TDM） based on multi-channel shared synchronizer is proposed in this paper to solve the constrained hardware resource problem of multi-system satellite navigation receiver. Through the using of control state machine and data register structure, we realize the multiplexing of bit synchronizer of navigation receiver, which saves the hardware resource. After the experiment, it can be verified that the receiver based on the bit synchronization and multiplexing technology can correctly restore the navigation information.

关 键 词：bit synchronization carrier-to-noiseratio MULTIPLEXING GNSS 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术] V556[自动化与计算机技术—计算机科学与技术]