Differences - Digital Signal Processing

# Differences - Digital Signal Processing Notes | Study Signals and Systems - Electronics and Communication Engineering (ECE)

## Document Description: Differences - Digital Signal Processing for Electronics and Communication Engineering (ECE) 2022 is part of Signals and Systems preparation. The notes and questions for Differences - Digital Signal Processing have been prepared according to the Electronics and Communication Engineering (ECE) exam syllabus. Information about Differences - Digital Signal Processing covers topics like and Differences - Digital Signal Processing Example, for Electronics and Communication Engineering (ECE) 2022 Exam. Find important definitions, questions, notes, meanings, examples, exercises and tests below for Differences - Digital Signal Processing.

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Differances

UNIT-V

 Non Recursive filters Recursive filters for causal systemFor causal i/p sequence It gives FIR o/p. All zero filter. Always stable. for causal systemIt gives IIR o/p but not always.Ex: y(n) = x(n) – x(n-3) + y(n-1)General TF : H(z) =  bk = 0 for Non RecursiveNf= 0 for causal system

 FIR filters IIR filters 1. Linear phase no phase distortion. Linear phase, phase distortion. 2. Used in speech processing, data transmission & correlation processing Graphic equalizers for digital audio, tone generators filters for digital telephone 3. Realized non recursively. Realized recursively. 4. stable Stable or unstable.H(n) = an u(n)   a<1 stable=  0          a>1 unstable 5. filter order is more Less 6. more co-efficient storage Less storage 7. Quantization noise due to finite precision arithmetic can be made negligible Quantization noise 8. Co-efficient accuracy problem is More less severe 9. used in multirate DSP (variable sampling rate)

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