比相体制导引头对相干源测向定位的建模与仿真

为实现诱饵诱偏下对比相被动导引头测向定位性能的动态分析,基于比相体制被动雷达导引头测向跟踪目标的基本原理,建立了多诱饵诱偏条件下导引头测向模型,并在相干诱饵条件下对测向性能进行了仿真分析.仿真结果表明:当反辐射武器以固定方向飞行时,在2个等功率诱饵诱偏条件下的定位瞄准点仅只在某些位置发生跳变;在多诱饵功率不相等的诱偏条件下的导引头定位瞄准点始终在变化.仿真分析证实了比相体制导引头将跟踪相干诱偏源合成相位中心,为研究该体制反辐射武器的作战运用提供了理论基础.

Modeling and Simulation of Phase-Comparison System Seeker Direction Finding and Positioning Relative to Coherent Source

In order for analyzing dynamically the direction finding performance of phase-comparison passive radar seeker （PRS） in the case of decoys, the seeker direction finding math model in the case of multiple decoys is set up, based on the direction finding and tracking principles of phase-comparison system PRS, and the simulative analysis is performed on direction finding under circumstance of multiple decoys in this paper. Simulation results illustrate that the position aiming points of PRS can only hop somewhere in the condition of two decoys with equal power and change throughout in the case of two decoys with unequal power, when the anti-radiation weapon flying at a constant direction. Moreover, the simulative analysis proves that the phase-comparison system PRS can track the synthetic phase center of the coherent decoy source, providing a theoretical basis for researching the operational application of this kind of anti-radiation weapons.