Improvement on Blind Symbol Rate Detection under Unfavorable Conditions
The performance of the blind symbol rate detection through non-linearity degrades under some conditions,including small excess bandwidth, limited symbol length and low signal-to-noise ratio. The improved algorithm here considers the main disturbance-continuous part of the power spectral of non-linearity as its envelope layer and eliminates it by an envelope sifting process, thus greatly improve the performance of the detectors, especially under one or more unfavorable factors. Simulation results show that the modified method outperforms the original methods in all cases, especially under unfavorable conditions.
blind symbol rate detection non-linearity envelope sifting
Ya Hu SiliangWu Hujun Geng
School of Information Science and Technology Beijing Institute of Technology ,Beijing 100081 , China The 54th Research Institute of CETC Shijiazhuang Hebei 050081, China
国际会议
南宁
英文
29-35
2010-10-13（万方平台首次上网日期，不代表论文的发表时间）