Chapter 1 Introduction to Digital Signal Processing

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Presentation transcript:

Chapter 1 Introduction to Digital Signal Processing

Concepts of Digital Signal Processing Analog filter ADC (analog to digital converter) DSP (digital signal processor) DAC (digital to analog converter) Reconstruction filter (anti-image filter)

Basic block diagrams of a DSP system

DSP Examples Digital filtering to remove noise to obtain a clean signal

Signal spectral analysis Plot and display frequency information of the digitized signal

Applications of DSP Digital crossover system

Interference cancellation in Electrocardiograph (ECG)

Speech coding and compression

CD recording system

Vibration Signature analysis for Defected Gear Tooth

Gearbox in good condition Gearbox in a damaged condition (missing a tooth)

Digital image enhancement

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