Analysis of CFAR Detection of Partially-Correlated χ2 Targets in the Presence of Interferers

The deriving force in the design and performance analysis of all radar systems is the target''s characteristics. The fluctuation rate of such a target may vary from essentially independent return amplitudes from pulse-to-pulse to significant variation only on a scan-to-scan basis. The correlation coefficient between the two consecutive echoes in the dwell-time is equal to unity for the SWI and SWIII cases while it is zero for the SWII and SWIV models. An important class of targets is that represented by the so-called moderately fluctuating Rayleigh and c2 targets, which, when illuminated by a coherent pulse train, return a train of correlated pulses with a correlation coefficient in the range 0