I want to use Kahn's method of Envelope Elimination and Restoration (EER) to produce a single-sideband, supressed-carrier (SSB) signal. Kahn simply clipped a low-level SSB signal, but I wonder if it isn't possible to use a PLL in this application.
Knowing the quadrature components of the input signal (I,Q), it seems one should be able to calculate the instantaneous frequency that corresponds to the time-varying phase (phase = arctan(Q/I)) and apply it to the VCO in a PLL that uses the carrier frequency as its reference.
Any ideas?
