Abstract
A new method for separation of signal and noise (SSN) is put forward. Frequency is redefined according to the features of signal and its derivative in the sampling time interval, thus double orthogonal basis (DOB) is constructed so that a signal can be precisely signified with a linear combination of low-frequency DOB. Under joint consideration in time domain (TD) and frequency domain (FD), a method on SSN with high accuracy is derived and a matched algorithm is designed and analyzed. This method is applicable to SSN in multiple frequency bands, and convenient in applying signal characteristics in TD and FD synthetically with higher accuracy.
| Original language | English |
|---|---|
| Pages (from-to) | 9-16 |
| Number of pages | 8 |
| Journal | Science in China, Series E: Technological Sciences |
| Volume | 43 |
| Issue number | 1 |
| DOIs | |
| State | Published - Feb 2000 |
ASJC Scopus Subject Areas
- General Materials Science
- General Engineering
Keywords
- Double orthogonal basis
- Features in time domain and frequency domain
- Frequency
- Separation of signal and noise
- Spline function
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