yes, i ll try.
I am implementing a communication transmission in Matlab, it means, there are a transmitter and a receiver.
Modulation could be ASK. I have programmed a 'weak signal detection method' in the receiver but it doesnt work as well as 'a coherent detection system (BPF + cos(wt))' works.
The point is that my 'weak signal detection method' doesn't use Band Pass Filter, so I try to figure out in which situation could be more favorable my system. That means, in which situation in the reception, a band pass filter is not able to be used and my system would be better.
Hope this clarify
Thanks for your time!