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Digital Signal Processing

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Digital Signal ProcessingTopic 6: Filters-Introduction

1. Simple Filters

2. Ideal Filters

3. Linear Phase and FIR filter types

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1. Simple Filters

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FIR & IIR

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Simple FIR Lowpass

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Simple FIR Lowpass

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deciBels

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deciBels

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Simple FIR Highpass

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FIR Lowpass and Highpass

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Simple IIR Lowpass

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Simple IIR Lowpass

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Simple IIR Highpass

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Highpass and Lowpass

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Simple IIR Bandpass

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Simple Filter Example

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Simple IIR Bandstop

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Cascading Filters

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Cascading Filters

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Cascading Filters

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2. Ideal Filters

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Ideal Lowpass Filter

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Ideal Lowpass Filter

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Practical Filter Specifications

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3. Linear-phase Filters

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Time reversal filtering

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Linear Phase FIR Filters

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Linear Phase FIR : Type 1

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Linear Phase FIR : Type 1

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Linear Phase FIR : Type 2

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Linear Phase FIR : Type 2

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Linear Phase FIR : Type 3

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Linear Phase FIR : Type 3

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Linear Phase FIR : Type 4

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Linear Phase FIR : Type 4

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4 Linear Phase FIR Types