四元红外导引头仿真信号源的实现

Implementation of Simulated Signal Source for Four-element Infrared Seeker

针对四元红外导引头半实物仿真任务的需要,提出基于“直接信号注入”的动态红外场景生成技术。通过仿真模型计算获得具有目标运动、干扰弹投放及复杂的天空、地物背景组成的动态红外场景信号,直接注入导引头电子舱,来检验和调试导引头各种跟踪与抗干扰算法,而不再需要由黑体、转台及复杂的光学系统组成的目标模拟器。重点讨论基于四元导引头工作原理的红外场景仿真信号的开发,红外场景的建模,并给出实际的工程实现方案。

To satisfy the need of hardware-in-the-loop simulation of four-element infrared seeker, a method of dynamic infrared scene generation based on ＂direct signal injection＂ was proposed. Infrared scene signals generated by model calculation are composed of target movement, release of jamming projectile and complex background of sky or ground. The signals are directly injected into the electronic cabin of seeker for verification and modification of the tracking and anti-jamming algorithms, without a complicated target simulator consisting of black body, turntable, and optical system. The dynamic infrared scene generation techniques based on the four-element infrared guidance principle and the modeling of infrared scene were investigated. Moreover, the implementation of actual simulated signal source was given to prove the feasibility of method.