Reusable Modeling of Pulsed Doppler Radar Seeker for Coherent Video Signal Simulation

Abstract

Abstract.A reusable framework of pulsed Doppler radar seeker (PDRS) is established for coherent video signal simulation, which provides an efficient tool to its design and evaluation. General PDRS configurations are described with emphasis on performance limitations. The discussions on the key parts of PDRS are self-contained and provide sufficient detail to allow a clear understanding of principles involved, which are depicted in a series of UML class diagram. Augmented proportional navigation law is used to generate the acceleration demands, while the bank-to-turn control command to obtain the fin-angle demand and the six degree of freedom (6-DOF) missile motion solution can then be accomplished by using missile aerodynamic characteristics. An air defense warfare scenario is designed to validate coherent video modeling. The 6-DOF trajectory simulation is also considered. The electronic countermeasures are also taken into account. Results show that this PDRS coherent video model is accurate for 6-DOF trajectory simulation, and the closed loop simulation offers an effective and practical way to design parameters and evaluate performance of missile.