Space-Time Processing for Weak Signal Detection in Non-Gaussian and Nonuniform Electromagnetic Interference (EMI) Fields

摘要

A canonical theory of threshold, or weak-signal detection in non-Gaussian space-time fields is developed (Part I) and implemented (in Part II) for general, detailed statistical-physical models of desired signals and non-Gaussian electromagnetic interference (EMI) environments. Both optimum threshold and suboptimum processing algorithms are obtained and their performance evaluated in the general weak-signal regimes. The major extension of the present study with regard to recent work involving weak-signal reception is to include the effects of nonuniform spatial noise fields on beam forming and signal detection with arbitrary arrays. Various array structures, fading models, noise statistics (Class A, B noise, etc.), as well as numerical examples are included, to illustrate the concepts, methods, and applications for telecommunication environments.