Abstract
This paper considers the problem of detecting range-spread target in compound Gaussian clutter with inverse gamma texture when steering vector mismatch occurs. Fictitious signals which are orthogonal to the nominal signal steering vector in the truly-whitened observation space are added under the null hypothesis to enhance the selectivity. A selective detector is derived by resorting to the generalized likelihood ratio test. The performance assessment shows that the proposed detector has better mismatch discrimination capability than the previously proposed detectors.
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