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- Title
Optimal Scale Choosing of PSK Signal Symbol Rate Estimation Based on Wavelet Transform.
- Authors
WANG Xiaofeng; ZHANG Guoyi; TIAN Runlan; LI Dawei
- Abstract
The problem of choosing optimal wavelet scale in the phase shift keying (PSK) signal symbol rate estimation is studied. An optimal wavelet scale choosing method is proposed. According to the optimum detection of phase jump between the symbols in the PSK signal, the optimal wavelet scale choosing function is established. And then, based on the coded type of signal and the carrier frequency derived from smoothness power spectrum, the optimal wavelet scales are chosen. Finally, the spectrum of the optimal scale wavelet transform accumulated modulus is employed to realize the symbol rate estimation. Simulation results demonstrate that the proposed wavelet scale choosing method's signal - to - noise ratio (SNR) threshold of binary phase shift signal and quadrature phase shift signal has been reduced by 1 dB and 3 dB, respectively.
- Publication
Telecommunication Engineering, 2015, Vol 55, Issue 5, p539
- ISSN
1001-893X
- Publication type
Article
- DOI
10.3969/j.issn.1001-893x.2015.05.013