how to design FIR bandpass filter with hanning window

say, I want to design and plot impulse response of a band pass filter with these spec with Hanning window

• lower stopband edge: 0.3π
• upper stopband edge: 0.6π
• lower passband edge: 0.4π
• upper passband edge: 0.5π
• stopband attenuation As = 50 dB
• passband ripple Rp = 0.5 dB

how can I design it?

Answer 1

[Star Strider]

designfilt

[Alvin Nguyen]

hi, I just copy the example code to test and got error, using 2014b version

and by the way, is there anyway test the filter with an input signal for example, x= 5- 5cos(n/2)?

[Star Strider]

You have to have the Signal Processing Toolbox to use designfilt. It was introduced in R2014a, so your R2014b Signal Processing Toolbox version will have it.