会议专题

Influence of Sampling Noise on Spread-spectrum Ranging based on Software Defined Radio

Increasingly, software defined radio receivers adopting band sampling are widely applied in space mission. In such systems, particularly in spread-spectrum ranging systems, the influence of sampling noise can not be neglected. The paper analyzes the sampling noise, presents its influence on the carrier noise ratio, and derives the ranging error by calculating the synchronization error of the delay locked loop. Simulations aiming at each impact factors of sampling-noise-induced ranging error are performed. Simulation and experiment results show that if the target ranging accuracy is at the level of centimeter, the quantization length should be no less than 8 and the sampling clock jitter should not exceed 60ps.

sampling noise ranging error spread-spectrum delay locked loop software defined radio

Chen Li Zhang Chuansheng Xu Bo

College of Mechatronics Engineering and Automation,National University of Defense Technology Changsha,Hunan,P. R. China,410073

国际会议

2011 10th International Conference on Electronic Measurement & Instruments(第十届电子测量与仪器国际会议 ICEMI2011)

成都

英文

1079-1082

2011-08-16(万方平台首次上网日期,不代表论文的发表时间)