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Altera_Forum
Honored Contributor
11 years agoBPSK Demodulation
Hello again, I am still struggling with BPSK demodulation :) OK, now I am trying to implement Costas Loop for carrier synchronization, which involves Inphase and Quadrature Phase paths. Inpha...
Altera_Forum
Honored Contributor
11 years ago1- I ran your code for 12000 samples, output signal got distorted, why?
2- You are changing the frequency rather than shifting phase. Is it what you intend to do? My code controls phase not frequency. 3- Why are you dividing by 2^16? 4- Phase, or more precisely, frequency is settling at 0.1, 0.11, 0.09 as you mentioned, but I don't see I&Q as DC... they are sinusoidal waves.