Chapter: Digital Signal Processing : FIR Filter Design

Symmetric and Anti-symmetric FIR filters

The various method used for FIR Filer design are as follows 1. Fourier Series method 2. Windowing Method 3. DFT method 4. Frequency sampling Method. (IFT Method)

Symmetric and Anti-symmetric FIR filters

1. Unit sample response of FIR filters is symmetric if it satisfies following condition.

h(n)= h(M-1-n) n=0,1,2…………….M-1

2. Unit sample response of FIR filters is Anti-symmetric if it satisfies following condition

h(n)= -h(M-1-n) n=0,1,2…………….M-1

FIR Filter Design Methods

The various method used for FIR Filer design are as follows

1. Fourier Series method

2. Windowing Method

3. DFT method

4. Frequency sampling Method. (IFT Method)

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Digital Signal Processing : FIR Filter Design : Symmetric and Anti-symmetric FIR filters |