FIR 

Digital Filter Design


Equiripple Filters

 

a)    Low Pass Filter, Band Frequency = (0-1500;2590-4000)Hz, Band Amplitude = (1;0),  Filter Length = 41, Iterations = 2. (Impulse Response)

 

 

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b)    High Pass Filter, Band Frequency = (0-1100;1600-4000)Hz, Band Amplitude = (0;1),  Filter Length = 31, Iterations = 4. (Magnitude Response)

 

 

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c)    Band Pass Filter, Band Frequency = (0-800;1000-2000;2200-4000)Hz, Band Amplitude = (0;1;0),  Filter Length = 36, Iterations = 1. (Logarithmic Magnitude Response)

 

 

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d)    Band Stop Filter, Band Frequency = (0-900;1100-2200;2400-4000)Hz, Band Amplitude = (1;0;1),  Filter Length = 43, Iterations = 5. (Logarithmic Magnitude Response)

 

 

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e)    Low Pass Filter, Band Frequency = (0-950;1300-4000)Hz, Band Amplitude = (1;0),  Filter Length = 39, Peak Error Ripple Ratio = 0.01 dB. (Logarithmic Magnitude Response)

 

 

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f)    Differentiator Filter, Band Frequency = (0-950;1050-2700;2900-4000)Hz, Filter Length = 42, Iterations = 0. (Magnitude Response)

 

 

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g)    Multi-Band Filter, Band Frequency = (0-800;910-1500;1610-2100;2300-3000;3200-4000)Hz, Band Amplitude = (0;1;0;1;0),  Filter Length = 31, Iterations = 3. (Logarithmic Magnitude Response)

 

 

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