Study on the method of fast acquisition in LEO satellite DSSS communication system

摘要：

The high dynamic spread spectrum signals include high Doppler shifts which may exceed 100 KHz in LEO satellite communication system. This paper describes a method which is based on fast Fourier transform (FFT) for the fast acquisition of spread spectrum signals in the presence of large Doppler shifts. The performance of the method is analyzed in this dissertation and the results show that the method can efficiently perform the acquisition process of the high dynamic spread spectrum signals. The paper utilized FPGA+DSP technology to implement this method. The experiment also showed the feasibility.

关键词： fast acquisition FFT DSSS LEO satellite communication FPGA

作者: Li Xianbin Chen Li Xu Bo Zhang Chuansheng

作者单位: College of Mechatronics Engineering and Automation,National University of Defense Technology Changsha 410073,China

会议类型: 国际会议

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

会议地点: 成都

会议语种:英文

页码: 325-328

在线出版日期: 2011-08-16（万方平台首次上网日期，不代表论文的发表时间）