1 May 2017 Discriminating spurious signals in radar data using multiple channels
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Spurious energy in received radar data is unanticipated and undesired signal relevant to radar target signatures, usually a consequence of nonideal component and circuit behavior, perhaps due to I/Q imbalance, nonlinear component behavior, additive interference (e.g. cross-talk, etc.), or other sources. The manifestation of the spurious energy in a range-Doppler map or image can often be influenced by appropriate pulse-to-pulse phase modulation. Comparing multiple images having been processed with the same data but different signal paths and modulations allows identifying undesired spurs and then cropping or apodizing them.
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A. W. Doerry, A. W. Doerry, D. L. Bickel, D. L. Bickel, } "Discriminating spurious signals in radar data using multiple channels", Proc. SPIE 10188, Radar Sensor Technology XXI, 101881E (1 May 2017); doi: 10.1117/12.2258352; https://doi.org/10.1117/12.2258352

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