Application of the RIDF´s to the Evaluation of Monopulse Errors Under Saturating ECM Enviroments

It is usually supposed that monopulse systems are immune to noise- jamming ECM´s because of its internal ellimination of external amplitude and phase modulations. In the paper is proved that this is not true under saturating conditions and an analysis scheme based on the RIDF´s (Random Input Describing Functions) is proposed. The main advantage of this method is its numeric efficiency which allows subsystem´s saturation behaviour be included in dynamic simulators.