The performance of a decentralized constant false-alarm rate (CFAR) detecti
on system with data fusion in homogeneous non-Gaussian background is analyz
ed in terms of ground area covered. The advantages of using a distributed r
adar system and the differences between the system behavior in Rayleigh clu
tter and in Weibull clutter are stressed. Notably, the increasing benefit o
f cooperative decision making when clutter becomes spikier is pointed out.