The algorithm of optimal restoration of the radiometric image (RMI) in narrow-band multiantenna radiometric systems of aperture synthesis is synthesized. The limit error of RMI estimation is investigated. Reasonability of transition to quasioptimal spatio-temporal signal processing in multichannel cross-correlation-compensation radiometric system and the losses of the accuracy matched with refusal of optimal processing are investigated. Analytical expressions for ambiguity functions of the systems realizing optimal and quasioptimal operations of signal processing are found.
narrow-band system of aperture synthesis, ambiguity function of radiometric system, cross-correlationcompensation radiometric system, multielement antenna array, radiometric image