Asymptotically Optimum Space-Diversity Detection in Non-Gaussian Noise

The theory of asympoticalllly optimum detection in nonGaussian noise is considered to synthesize a space-diversity structure for the noncoherent detection of a bandpass signal subject to amplitude fluctuations. An asymptotic sufficient statistic is obtained for arbitrary fading laws on the diversity branches and, then, for Rayleigh-distributed amplitude fluctuations, the asymptotically optimum detector is synthesized. The performance of the proposed detection structure is obtained and numerical results and comments are presented. Moreover, a comparison between the asymptotically optimum detector and a simple suboptimum structure is made.