Signal-noise Ratio(SNR)Estimation of Typical Signals over AWGN Channel
Boyi Zhang · Journal of Binzhou University · 2015
Signal-noise ratio is an important measurement of communication quality parameters.Correctly estimating signal-noise ratio provides important information for subsequent researches.This issue combines with various kinds of methods for signal-noise ratio estimation,and estimates different kinds of modulated signals in different kinds of methods,only with the prior information of modulation mode.We can effectively recognize six modulated signals,including amplitude-modulation signals,phase-modulation signals and frequency-modulation signals.Simulation experiments prove that the methods in this issue can effectively estimate signal-noise ratio between 0and 18 dB with estimated bias less than 0.5dB.