Hi, If the signal transmitted at the transmitter is represented as, x(t) = X_i(t)cos(2*pi*fc*t) - X_q(t)sin(2*pi*fc*t), where X_i(t) and X_q(t) are inphase and quadrature components of the message signal.
then, at the receiver does the following equation correctly represent the signal after downcoversion to baseband like in a "RFX2400 + USRP' set up. inphase component of received signal = X_i(t)cos(2*pi*f_offset*t + phi ) + noise_component quadrature component of received signal = X_q(t)sin(2*pi*f_offset*t + phi) + noise_component where, 'f_offset' is the frequency offset present and 'phi' is the received signal phase. Can someone suggest a good reference to direct conversion receivers? Thanks.
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