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© 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement 1. The performances of the reconstructed signals on pulse compression are also demonstrated to evaluate the potential of the proposed technique in practical applications. A proof-of–concept experiment is performed, in which signals with 3 GHz bandwidths are sliced and reconstructed using the proposed receiver with a normalized mean squared error (NMSE) of 7.9×10 −3. In the back-end, through the channel estimation and spectrum stitching, the received signals can be well reconstructed in the digital domain. In the scheme, a dual-OFC-based channelizer is utilized as the front-end to slice the RF signals into multiple channels.