hello and good day !
A pass band receiver system will process modulated signal , i.e. there iz RF
stage , then IF stage and Baseband (BB) stage.
I want to model LPF instead of BPF in RF and IF stage i.e. model a LPF from a
BPF, which gives the same output as passband system gives.
I tackle this problem that i take hilbert transform to retain only positive
frequencies and then multiply with exp(-jwct) to shift it to zero
Q 1) how to retrieve a time domain transfer function in 's' domain of bandpass
Q 2 ) whether i have to made these operations to bandpass filter transfer
function or to the output of a bandpass filter.
how to chnage a bandpass filter to a low pass filter
Started by ●October 31, 2006