Fig. 1

Block diagram of the basic MFT framework. The wideband signal is first sampled above the Nyquist rate, interpolated by a factor R, and then heterodyned by multiplication with cos(ω _d n), followed by a discrete FIR bandpass filter with a passband gain to achieve the MFT. Then, it goes through a demodulation block to generate IF estimates of the compressed heterodyned signal. To obtain the IF of the original signal, the compressed heterodyned IF is then shifted back by subtracting ω _d , decimated by R, and scaled back appropriately, followed by the DAC module