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ASP project presentation

Explore the time domain representation and normalization of recorded signals in an ASP project. Step-by-step processes include mixed noise analysis, spectral analysis, filtering techniques, and correlation assessment.

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ASP project presentation

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  1. ASP project presentation Student ID: _________

  2. Time domain representation of the normalisedrecorded signals – STEP 1,3(representative interval from 0.5 to 1.3 seconds) Stop.wav Stopsat.wav Tone.wav Noise.wav overall representative

  3. Normalise mixnoise and its components - STEP 2,3 mixnoise= 6*noise + 10*tone + 7*whinoise Mixnoise.wav Noise.wav Tone.wav Whinoise.wav overall representative

  4. Overview graphs of signal+noise mixes (whole signals, normalised) – STEP 3 Inputs SPN1 SPN2 SPN3 stop+mixnoise*5 stop+mixnoise stop+mixnoise/4 stop mixnoise

  5. Detailed graphs of signal+noise mixes (representative intervals only, normalised) – STEP 3 Inputs SPN1 SPN2 SPN3 stop+mixnoise*5 stop+mixnoise stop+mixnoise/4 stop mixnoise

  6. Probability density functions - STEP 4 Mixnoise.wav Noise.wav Tone.wav Whinoise.wav overall representative

  7. Probability density functions - STEP 4 Mixnoise.wav Stop.wav SPN2.wav SPN1.wav overall representative

  8. Correlation analysis - STEP 5 (signals BEFORE and AFTER processingby the matched filter) Stop.wav Mixnoise.wav SPN2.wav SPN1.wav before after

  9. Spectral analysis – FFT - STEP 6 Stop.wav Mixnoise.wav SPN2.wav Tone.wav magnitude phase

  10. Spectral analysis – Specgram - STEP 6 Stop.wav Mixnoise.wav SPN2.wav Tone.wav overall representative

  11. Spectral analysis – PSD - STEP 6 Stop.wav Mixnoise.wav SPN2.wav Tone.wav overall representative

  12. Spectral analysis – PSD – STEP 6 for complete records SPN1 SPN2 SPN3 stop+mixnoise*5 stop+mixnoise stop+mixnoise/4 stop mixnoise

  13. Spectral analysis – parametric - STEP 6pburg order 10 was used Stop.wav Mixnoise.wav SPN2.wav Tone.wav overall representative

  14. IIR filtering - STEP 7butter order 10 was used records BEFORE and AFTER filtering Frequency response Stop.wav Mixnoise.wav magnitude before phase after

  15. IIR filtering - STEP 7butter order 10 was used records BEFORE and AFTER filtering SPN1.wav SPN2.wav SPN3.wav before after

  16. Wiener filtering - STEP 8order 50 was used records BEFORE and AFTER filtering Frequency response Stop.wav Mixnoise.wav magnitude before phase after

  17. Wiener filtering - STEP 8order 50 was used records BEFORE and AFTER filtering SPN1.wav SPN2.wav SPN3.wav before after

  18. Adaptive filtering - STEP 9order 30 was used records BEFORE and AFTER filtering SPN1.wav SPN2.wav SPN3.wav before after

  19. SNR values in dB – STEPS 3,7,8 (upper values for ABS, lower values for STD)

  20. Block diagram of the system – STEP 11

  21. Last slide

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