Research on Noise Reduction for Millisecond Pulsar Signal Based on Wavelet Transform

Details Research on Noise Reduction for Millisecond Pulsar Signal Based on Wavelet Transform Research on Noise Reduction for Millisecond Pulsar Signal Based on Wavelet Transform

Mar 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008pnaoc...5...49w&link_type=abstract

Astronomical Research and Technology. Publications of National Astronomical Observatories of China (ISSN 1672-7673), Vol. 5, No.

Astronomy and Astrophysics

Astronomy

Millisecond Pulsar, Wavelet Transform, Dispersion Limited, De-Noising Method

Scientific paper

In this paper, the theory of the wavelet analysis and its application to the de-noising process is introduced. 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 result is available for PSR J0437-4715 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.

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