Estimation Method for Sinusoidal Frequency in Strong Chaotic Noise
Xiaotao Kang · Jisuanji gongcheng · 2009
An estimation method for sinusoidal frequency in strong chaotic noise is presented,which makes mixed signals,containing chaotic signal and sinusoidal signal,into filter,and uses the filtered signal to drive a new response chaotic system same as the driving system.If chaotic synchronization occurs,the error data series between drive and response signal have the sinusoidal signal,and the SNR in error data series is much improved,so it is easy to estimate the harmonic parameter.Simulation experimental results show this method is effective and feasible.