Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

phase difference 2 signals.

is possible whit fpga FFT or similar metod measure a phase difference from 2 PULSED-sinusoidals signals? the freq of signals is 60MHz but the duration of signals is 0.5uSEC, and the PRF of pu...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

I/Q demodulation is done my multiplying the input signal with 0° and 90° reference sine. If you manage to sample the input at fs = 240 MHz, the operation simplifies to processing the odd and even samples. Gating according to the signal enevlope would be necessary in any case.