Fir-Filter-coeff-cal (https://youtu.be/ecOrID3kDrE)

Fir Filter Coefficient calculation for Embeded programs

Compiler gcc

Filter types

1. Lowpass
2. Highpass
3. Bandpass
4. Bandstop

Window types //Reference (https://en.wikipedia.org/wiki/Window_function)

1. Rectangular
2. Triangular
3. Welch
4. Sine
5. Hann
6. Hamming
7. Blackman
8. Nuttall
9. BlackmanNuttall
10. BlackmanHarris
11. FlatTop
12. Kiser

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How to Run

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Open FIR_filter_coeff.exe for windows users

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Linux users open the terminal in files location and type

 ./FIR_fiter_coeff_cal
 (compiled C program with math.h library)
 if gcc compliler did not installed on your linux os
 first install the GCC Compiler 
 Perform the steps this to install the GCC Compiler :- $ sudo apt install build-essential
                                                       $ sudo apt-get install manpages-dev                                                          

Ex 1 :-> (Lowpass hann window Fs=100 and order = 128th) lowpass Fc = 2.2Hz

enter the filter type window Fs order= lowpass hann 100 128
!enter the lowpass frequency  fc = 2.2

Ex 2 :-> (Highpass blackman window Fs=100 and order = 64th) highpass Fc=10Hz

enter the filter type window Fs order= highpass blackman 100 64 
enter the highpass frequency fc = 10

Ex 3 :-> (Bandpass BlackmanNuttall window Fs=200 and order = 84th) passband [fc1 fc2] = 2.2Hz - 4.4Hz

enter the filter type window Fs order= bandpass blackmannuttall 200 84 
enter the frequncy passband fc1 fc2 = 2.2 4.4 

Ex 4 :-> (Bandstop kiser window Fs=100 and order = 64th) stopband [fc1 fc2] = 10Hz - 15Hz stop band attenuation 60dB

enter the filter type window Fs order= bandstop kiser 100 64
enter the frequncy stopband fc1 fc2 = 10 15 
Enter stop-band attenuation [dB] = 60

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Outputs

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.txt files & .png files for coefficients & impulse response