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Radar Waveform Optimization for Cooperative Radar and Communications Joint Receiver

Shankarachary Ragi(shankarachary.ragi***at***asu.edu)
Alex R. Chiriyath(achiriya***at***asu.edu)
Daniel W. Bliss(d.w.bliss***at***asu.edu)
Hans D. Mittelmann(mittelmann***at***asu.edu)

Abstract: We develop and present radar waveform design methods that jointly maximize performance of a joint radarcommunications system that shares spectrum. Specifically, we present a novel waveform design technique that optimizes the spectral shape of the radar waveform for multiaccess communications and radar receiver. This technique also ensures that the radar waveform is unimodular. We also present an extension to an existing waveform design technique that has additional optimization constraints imposed and also utilizes more efficient optimization methods which significantly reduce the computation time. This technique does not guarantee unimodular radar waveforms. We perform a numerical study to compare the performance of these two techniques. We employ successive interference cancellation at the receiver to mitigate an in-band communications user signal after the predicted radar return is removed. The global estimation rate, which also accounts for non-local (in terms of the signal-to-noise ratio (SNR)) estimation errors, and the date rate capture the radar and the communications performance respectively.

Keywords: Joint Radar-Communications, Radar Waveform Design, Information Theory, Estimation Theory, Nonlinear Programming

Category 1: Applications -- Science and Engineering


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Entry Submitted: 10/14/2017
Entry Accepted: 10/15/2017
Entry Last Modified: 10/14/2017

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