Patent ID: 8902096

Claim:
A system for obtaining a digital representation of a received signal, the system comprising: an electronic or guided-wave optic based replicator configured to obtain M replicas of a signal applied thereto; an electronic or guided-wave optic based segmenter configured to segment a signal applied thereto into N segments based on time or wavelength, the replicator and the segmenter together configured to obtain M×N segment replicas of the received signal; an electronic or guided-wave optic based mixer configured to multiply the M×N segment replicas by coefficients of a mixing matrix having dimension M×N and, after the multiplication, to form M integrations each of N of the segment replicas so as to obtain a measurement vector of length M; a signal recovery processor configured to obtain a digital representation of the received signal based on the measurement vector and the mixing matrix; a chirped optical source configured to generate a chirped, repetitively pulsed, optical signal; and an optical modulator configured to modulate the optical signal based on the received signal, wherein the segmenter comprises a guided-wave optic based wavelength division demultiplexer having dimension 1×N and being configured to receive the modulated optical signal and to segment the modulated optical signal into the N segments based on wavelength.