sqx
Member level 1
Hi,
For a low-IF receiver, how do we deal with the in-band image problem?
take this figure for example, say that it's a low-IF receiver with f_IF = 1 MHz. Thus the image for one channel could be another channel, which can't be filtered by your band-selection BPF. Then how do we solve the image problem?
Do we have to use an image-rejecting mixer to cancel the image by I-Q demodulation?
For a low-IF receiver, how do we deal with the in-band image problem?
take this figure for example, say that it's a low-IF receiver with f_IF = 1 MHz. Thus the image for one channel could be another channel, which can't be filtered by your band-selection BPF. Then how do we solve the image problem?
Do we have to use an image-rejecting mixer to cancel the image by I-Q demodulation?