Usage: 1.Order: The order of the filter
1< Order < 20
2.Low Cut: The low cut off frequency of the band pass filter.
0< Low Cut < High Cut
3.High Cut: The high cut off frequency of the band pass filter.
Low Cut< High Cut < 0.5
4.FIR filter type: The type of the FIR filter
Fir filter type= 1 or 2 or 3 or 4
1: Symmetrical response, Odd length
2: Symmetrical response, Even length
3: Anti-symmetrical response, Odd length
4: Anti-symmetrical response, Even length
5.FIR length: The coefficient length of the FIR filter
Press "Compute" to design the FIR filter. The coefficient of the FIR
filter is showed in the EDIT box.
Below is the digital filter algorithm of the FIR filter.
Here x(k) is raw signal, y(k) is filtered signal, b(n) is tht coefficients
of the FIR filter.