Research on Noise Reduction for Millisecond Pulsar Signal Based on Wavelet Transform
Li Wang, Xizheng Ke, Guangren Ni · Publications of the National Astronomical Observatories of China · 2008
In this paper,the theory of the wavelet analysis and application of the wavelet analysis to the de-noise process is introducted.The weak millisecond pulsar signal by de-noising method based on the wavelet threshold is detected.The soft threshold and hard threshold methods are also introduced. When J equals to 5,the results is available for 0437-4715 signal.The experimental results show that the de-noising method based on the wavelet threshold is a good manner in extracting useful signal and displaying noise and mutable signal.