期刊名称：Journal of Theoretical and Applied Information Technology
印刷版ISSN：1992-8645
电子版ISSN：1817-3195
出版年度：2013
卷号：51
期号：1
出版社：Journal of Theoretical and Applied
摘要：In non-cooperative communication system, symbol rate is a crucial part of parameter estimation. Based on the wavelet transform, an improved symbol rate estimation model is proposed. Without a prior knowledge, we raised a better symbol rate pre-estimation method in view of corrected average periodogram’s smoothing power spectrum. By choosing the optimal wavelet scale and fast Fourier transform, we adopted a multi-synchronous reference algorithm to extract the symbol rate. Simulation demonstrates that the performance of accuracy and anti-noise is improved than traditional algorithms. The normalized mean square is lower than 10-2 at SNR=0dB and reached 10-5 when SNR=10dB, which is approaching more closely to CRLB.
关键词：Symbol Rate Estimation; Wavelet Transform; Optimal Scale; Non-Cooperative Communication; Multi-Synchronous Reference; Fast Fourier Transform; Corrected Average Periodogram’s Smoothing Power Spectrum.
