Generalised ambiguity function for MIMO radar systems

Ilioudis, Christos V. and Clemente, Carmine and Proudler, Ian and Soraghan, John (2019) Generalised ambiguity function for MIMO radar systems. IEEE Transactions on Aerospace and Electronic Systems. ISSN 0018-9251 (

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In this work a generalised signal model is presented to accommodate both narrowband and wideband signals in a multi-input multi-output (MIMO) sensor system scenarios. The derived model is then used to define a MIMO ambiguity function (AF) based on the Kullback-Leibler divergence (KLD). Moreover, the proposed formulation is parametrised using the signal and channel correlation matrices to account for different waveform and sensor placement designs, thereby allowing a flexible modelling approach. A comparison between the proposed definition and the more conventional approach of summing the squared matched filter outputs is presented for different sensors and waveforms configurations.