Airborne FDA-MIMO Radar Modeling and Detection Performance Analysis
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In the conventional frequency diverse array (FDA) radar designs, generalized likelihood ratio test (GLRT) detection utilizes coherent pulses. However, the impacts of an FDA multiple-input multiple-output (FDA-MIMO) radar system for detection with incoherent pulses have not been systematically investigated. In this paper, we present an incoherent square-law detector to analyse the performance of both the coherent and non-coherent airborne FDA-MIMO radars in a Neyman-Pearson sense. Moreover, the closed-form expressions of an incoherent square-law detector for the FDA-MIMO radars are derived. For a coherent FDA-MIMO radar, the optimal performance is achieved at a high signal-to-noise ratio (SNR), whereas the superiority of a non-coherent FDA-MIMO radar in distinguishing range dependent targets is validated. The corresponding theoretical derivations are verified by the extensive numerical results to show an improved performance.
KeywordsCoherent and non-coherent FDA-MIMO radar, airborne radar, square-law detector, incoherent pulses, Neyman-Pearson sense, detection performance, range dependent targets
Document typePeer reviewed
Document versionFinal PDF
SourceRadioengineering. 2021 vol. 30, č. 2, s. 396-406. ISSN 1210-2512
- 2021/2