Subband Processing based Symbol-rate Estimation Method for MFSK Signal

摘要：

In this paper, we are focusing on the symbol-rate estimation problem of MFSK signals under wideband receiving situation. The channelization is indispensable in the shortwave wideband receiving signal processing. It will arise signal spectrum distortions when the carrier frequency of the needed MFSK signal is unknown. We proposed a new subband processing based method to solve this inevitably question. The signal model of subband MFSK signal is presented and analyzed firstly, and the correlation between symbol-rate and the transtion of MFSK subband signal instantaneous amplitude is pointed out. Then we present the novel symbol-rate estimation method based on the instantaneous amplitude of the subband signal. and give out deduction of the estimation expectation to prove the method is unbiased. To testify the efficiency and credibility of the method, Monte Carlo computer simulations are carried out. When half of the 8FSK signals spectrum is damaged, the symbol-rate estimation method is almost 100％ accurate as long as the SNR is above 4dB.

关键词： subband signal MFSK symbol-rate estimation shortwave wideband

作者: Luo Sheng-en Zhang Xiao-yong Luo Lai-yuan

作者单位: Southwest Electronics and Telecommunication Technology Research Institute Chengdu, China

会议类型: 国际会议

会议名称: 2010 IEEE 10th International Conference on Signal Processing(第十届信号处理国际会议 ICSP 2010)

会议地点: 北京

会议语种:英文

页码: 38-41

在线出版日期: 2010-08-24（万方平台首次上网日期，不代表论文的发表时间）