Performance of the greater-of and censored greater-of detectors in multiple target environments

Abstract
The greater-of (GO) constant false alarm rate (CFAR) detector selects the greater of the leading and lagging sets of the reference noise cells to minimise the effect of clutter and jamming. The performance of the GO detector is derived for the case where an arbitrary number of interfering targets are present in the leading and lagging reference noise cells. To improve its performance in this situation, the censored greater of (CGO) detector, which discards several of the largest samples on each side is analysed. Results presented show improvements for the CGO over the GO detector, especially when the number of interfering targets is less than the number of censored cells.

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