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how design the filter with SINC topology?????

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zouyufeng

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It is best that someone give me some relative documents!!!!

Thank you so much!
 

the ideal low pass filter has impulse response sinc function
so first determine the fc
calculate impulse response 2fc*sinc(2fct)
then truncate the impulse response by 2N, by multipling the result h(t) by appropraite window such as hamming or hannig window
the result is your impulse response
u can verify your work by calculte the frequency response to result inpulse respone
 

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