| 摘要 |
A signal separation method for separation of source signals from a composite signal expresses the composite signal as a series of values of signal amplitude. The source signals have periodicities similar or equal to p. The composite signal is portioned into sections which provide respective rows of a matrix X, in which successive rows represent successive sections. A singular value decomposition of the matrix X is performed to obtain two singular vector matrices U, V and a singular value matrix lambda. An independent component analysis is performed on one of the singular vector matrices U, V to obtain an independent component matrix UR<SUB>2</SUB><SUP>T</SUP>,R<SUB>1</SUB><SUP>T</SUP>V and an associated component matrix R<SUB>2</SUB>lambdaV ,UlambdaR<SUB>1</SUB>. One of the component matrices UR<SUB>2</SUB><SUP>T</SUP>,UlambdaR<SUB>1 </SUB>contains estimated separated signal modulation envelopes and the other component matrix R2lambdaV, R<SUB>1</SUB><SUP>T</SUP>V contains estimated separated cyclets.
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