Code Rate Estimation Algorithm for BPSK Signal Based on Wavelet Transformation

Abstract:

A wavelet transformation based estimating algorithm for the symbol rate of BPSK signals is adopted . This method extracts baseband signal from the generated BPSK modulated signal by means of different ways, utilizing the modulus of wavelet transformation coefficients of this baseband signal to construct a singular pulse sequence consistent with the code rate of original modulated signal. Theoretical analysis on the power spectrum of this singular pulse sequence indicates that there exist discrete spectral lines in the integral multiples of baseband signal symbol rate, thus detecting these discrete spectral lines can achieve the estimation of signal symbol rate. Our proposed algorithm can estimate the signal symbol rate under the low SNR condition.

• Periodical: Advanced Materials Research (Volume 740)
• Pages: 178-182
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.740.178
• Online since: August 2013
• Authors: Huan Wang, Chang Xing Li, Yong Zhuang Li
• Keywords: BPSK Signal, Symbol Rate Estimation, Wavelet Transformation

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