Code Synchronization Algorithm Based on Segment Correlation in Spread Spectrum Communication

Algorithms

Aohan Li²  Ziheng Yang²  Renji Qi²  Feng Zhou²  Guangjie Han¹ 

[1] Department of Information and Communication System, Hohai University, Changzhou 213022, China;School of Electrical Engineering, Heilongjiang University, Harbin 150800, China; E-Mails:

关键词: direct sequence spread spectrum;    spread spectrum;    code synchronization;    segment correlation;    FPGA;   

DOI  :  10.3390/a8040870

来源: mdpi

【 摘 要 】

Spread Spectrum (SPSP) Communication is the theoretical basis of Direct Sequence Spread Spectrum (DSSS) transceiver technology. Spreading code, modulation, demodulation, carrier synchronization and code synchronization in SPSP communications are the core parts of DSSS transceivers. This paper focuses on the code synchronization problem in SPSP communications. A novel code synchronization algorithm based on segment correlation is proposed. The proposed algorithm can effectively deal with the informational misjudgment caused by the unreasonable data acquisition times. This misjudgment may lead to an inability of DSSS receivers to restore transmitted signals. Simulation results show the feasibility of a DSSS transceiver design based on the proposed code synchronization algorithm. Finally, the communication functions of the DSSS transceiver based on the proposed code synchronization algorithm are implemented on Field Programmable Gate Array (FPGA).

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.