A demodulator for receiving signals modulated in emergent time, comprised of an exponential time warping input stage, an FFT to convert to the frequency domain, and an exponential time warping output stage to map the recovered modulation onto the causal time domain. Overlapped blocks are correlated by summing the warped outputs, providing selectivity and gain. Tuning is by means of matching the warp rate of emergent time. A modulator performs the reverse function.

The present invention focuses a system and or a complex synthetic method, which considering any not orthogonal, independent plurality signals with limited frequency bandwidth, not greater than any f0 central frequency, allows to develop a resultant complex signal with limited frequency bandwidth, not greater than any relative f0 central frequency instead of the one sum of all the relative plurality independent not orthogonal signals frequency bandwidths. The resultant complex signal is the linear combination of orthogonal complex signals plurality. Each one of such orthogonal complex signals is characterized by a limited frequency bandwidth, not greater than any relative f0, and each is in bijection with the relative independent not orthogonal signal considered in the beginning