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Honored ContributorBPSK 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_ForumHonored Contributor
Honored Contributor --- Quote Start --- Can you give a rule of thumb for controlling the NCO? Do I control phase of frequency? As they give different behaviors. --- Quote End --- you change nco frequency by changing the increment value which points to phase. The actual sine values of 1 cycle (or half or quarter) are stored in lut. for negative frequency you can still add the negative increment (well subtract) so pointer goes backwards, or use positive increment but swap sin/cos or invert one of them
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