A Method of Evaluating the Signal to Noise Ratio (SNR) Based on Duffing Time Sequence
Yongqing Fu · Modern Electronics Technique · 2008
In order to evaluate the Signal to Noise Ratio(SNR) quickly in the Duffing time sequence which contains noise,reconstructed phase space,which is based on Duffing time sequence,is adopted to overcome the difficulty.Calculate the statistics which is got from Average Divergencing Distance(ADD),then studing the relationship between SNR and ADD,finding a kind of effective evaluated method.Through the data imitation,the result is that ADD attenuates with SNR in the style of exponent.Through the simulation verification,proportional error of the evaluated SNR is no more than 1%.It is very important to detect weak signal in the field of signal disposal.