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)
