A Cognitive Sub-Nyquist MIMO Radar Prototype

07/23/2018

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by   Kumar Vijay Mishra, et al.

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We present a prototype that demonstrates the principle of a colocated, frequency-division-multiplexed, multiple-input multiple-output (MIMO) radar which implements both temporal and spatial sub-Nyquist sampling. The signal is sampled and recovered via the Xampling framework. The prototype is cognitive because the transmitter adapts its signal spectrum by emitting only those subbands that the receiver samples and processes. Real-time experiments demonstrate sub-Nyquist MIMO recovery of the target scenes with 87.5 spatio-temporal bandwidth reduction and signal-to-noise-ratio -10 dB.