A Noise Reduction Method for Noisy Chaotic Signal
Shiyuan Wang · Journal of Circuits and Systems · 2004
This paper addresses the issue of filtering noisy chaotic signals. Combining with the signal modeling technique, a filtering method based on the Unscented Transform (UT) is proposed. Computer simulation indicates that following this approach, the noisy affect on chaotic system can be reduced effectively no mater how the parameters of chaotic system vary. In comparison with the EKF-based method, UT-based method has better filtering performance under the case of low signal to noise ratio (SNR), and has similar performance under the case of high SNR.