I am facing some issues when I try to compare the received signal with the signal that has been decoded and encoded again (BPSK is used). I have tried to add delay to the signal that goes through a shorter path but it seems like the delay between the two signals is not constant and it is "sliding" as time passes.
I am using packet communications.
I can send the files to anyone that has an idea about this issue. Transmitterenter image description here enter image description here
