Phase-offset Estimation Algorithms Based on CPS
Debo Liu · Jisuanji fangzhen · 2011
Based on the Constellation Phase Signature phase-offset estimation algorithm,the symmetry detection algorithm was proposed making using of the local symmetric of the cyclic cross correlation function.Besides,another two algorithms for estimation phase-offset was proposed through the properties of the wavelet transform of wide-sense stationarity signals.Finally,the influence of the wavelet transform to the Gauss white noise was investigated.With the condition of low SNR,the first propose algorithm has better performance compared with the CPS algorithm.The Morlet wavelet transform algorithm has the best performance with the condition of low SNR while the Harr wavelet transform algorithm has the best performance with the condition of high SNR.