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Here is another instance of Compressive Sensing hardware: Compressive spectrum sensing of radar pulses based on photonic techniques by Qiang Guo, Yunhua Liang, Minghua Chen, Hongwei Chen, and Shizhong Xie

We present a photonic-assisted compressive sampling (CS) system which can acquire about 106 radar pulses per second spanning from 500 MHz to 5 GHz with a 520-MHz analog-to-digital converter (ADC). A rectangular pulse, a linear frequency modulated (LFM) pulse and a pulse stream is respectively reconstructed faithfully through this system with a sliding window-based recovery algorithm, demonstrating the feasibility of the proposed photonic-assisted CS system in spectral estimation for radar pulses.

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