Abstract
Aiming at the problem of distributed target detection when there is signal mismatch, this paper proposes a tunable detector, which is characterised by a tunable parameter. The proposed detector can realise the flexible detection of mismatch signals by adjusting the tunable parameter, and hence the directivity (robustness or selectivity to mismatched signals) of the tunable detector can be smoothly adjusted. In addition, the tunable detector can obtain approximately the same detection performance as the corresponding generalised likelihood ratio test in the absence of signal mismatch. The proposed tunable detector also possesses the constant false alarm rate property. Numerical examples illustrate the effectiveness of the proposed detector.
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