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A Single-channel Mix Signal Separation Technique

A Single-channel Mix Signal Separation Technique. The 1st International Conference on Bioinformatics and Biomedical Engineering, ICBBE 2007. Xiefeng Cheng Nianqiang Li Yuhan Cheng Zhengyu Chen. Jain-De Le TM. Outline. INTRODUCTION THE INDENPENDENT SUB-BAND FUNCTION MODEL

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A Single-channel Mix Signal Separation Technique

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  1. A Single-channel Mix Signal Separation Technique The 1st International Conference on Bioinformatics and Biomedical Engineering, ICBBE 2007 Xiefeng Cheng Nianqiang Li Yuhan Cheng Zhengyu Chen. Jain-De LeTM

  2. Outline • INTRODUCTION • THE INDENPENDENT SUB-BAND FUNCTION MODEL • A SINGLE SENSOR MIXTURE SIGNAL SEPARATION TECHNIQUE • SEPARATION EXPERIMENT • CONCLUSION

  3. INTRODUCTION • Introduction of TEOAEs(Transient Evoked Otoacoustic Emissions)

  4. THE INDENPENDENT SUB-BAND FUNCTION MODEL

  5. THE INDENPENDENT SUB-BAND FUNCTION MODEL (cont.) C-1=Wc

  6. A SINGLE SENSOR MIXTURE SIGNAL SEPARATION TECHNIQUE • The method of expanding the dimension of single signal • Single maxing model (two signal) • The signal x is chopped N segments x(t)=As(t) x(t)=a1s1(t)+a2s2(t) Formula A

  7. A SINGLE SENSOR MIXTURE SIGNAL SEPARATION TECHNIQUE (cont.) • Implement steps n=n+1 Procure sub-band functions Transform xn into a multi-dimensional Comparing Into a two-dimensional vector and separate Separate vector

  8. SEPARATION EXPERIMENT Artifact Independent sub-band functions

  9. SEPARATION EXPERIMENT To transform into a 4-dimensional vector Similitude coefficient (SC) and similitude phase diagram (SPD)

  10. SEPARATION EXPERIMENT DNLR method Author’s method

  11. CONCLUSION • Need only one signal • Similar coefficient is near to 1

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