Frequency domain blind source separation algorithm based on improved sequencing algorithm

The invention discloses a frequency domain blind source separation algorithm based on an improved sequencing algorithm. The frequency domain blind source separation algorithm comprises the following steps of acquiring a mixed signal; performing time-frequency transformation on the mixed signal to ob...

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Main Authors FANG GEFENG, FAN XIAOTENG, HE YIGANG, BO XIANGLEI
Format Patent
LanguageChinese
English
Published 04.09.2013
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Abstract The invention discloses a frequency domain blind source separation algorithm based on an improved sequencing algorithm. The frequency domain blind source separation algorithm comprises the following steps of acquiring a mixed signal; performing time-frequency transformation on the mixed signal to obtain a frequency domain mixed signal; performing whitening preprocessing on the frequency domain mixed signal; performing complex independent component analysis (ICA) on the preprocessed frequency domain mixed signal at different frequency points to obtain independent components at the frequency points; sequencing the independent components at the frequency points by the improved sequencing algorithm; and performing time-frequency inverse transformation on the sequenced frequency domain signal to obtain a time domain signal. The frequency domain blind source separation algorithm has the advantages of high stability and low complexity; and compared with a frequency domain blind source separation algorithm adopting s
AbstractList The invention discloses a frequency domain blind source separation algorithm based on an improved sequencing algorithm. The frequency domain blind source separation algorithm comprises the following steps of acquiring a mixed signal; performing time-frequency transformation on the mixed signal to obtain a frequency domain mixed signal; performing whitening preprocessing on the frequency domain mixed signal; performing complex independent component analysis (ICA) on the preprocessed frequency domain mixed signal at different frequency points to obtain independent components at the frequency points; sequencing the independent components at the frequency points by the improved sequencing algorithm; and performing time-frequency inverse transformation on the sequenced frequency domain signal to obtain a time domain signal. The frequency domain blind source separation algorithm has the advantages of high stability and low complexity; and compared with a frequency domain blind source separation algorithm adopting s
Author BO XIANGLEI
HE YIGANG
FANG GEFENG
FAN XIAOTENG
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Snippet The invention discloses a frequency domain blind source separation algorithm based on an improved sequencing algorithm. The frequency domain blind source...
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SubjectTerms ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
Title Frequency domain blind source separation algorithm based on improved sequencing algorithm
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