光电对抗装置仿真试验系统的设计与实现

发布时间：2018-03-13 09:18

本文选题：光电对抗　切入点：四象限探测器　出处：《电子科技大学》2014年硕士论文　论文类型：学位论文

【摘要】：光电对抗仿真试验是科学、合理地评估光电对抗武器装备性能主要途径之一。本文针对激光半主动寻的制导武器的作战过程,运用计算机与仿真等技术,设计并实现了一个光电对抗装置半实物仿真试验系统,为光电对抗装置的指标验证及效能评估提供了试验平台,具有重要的军事意义,应用价值高。本文在系统分析高重频激光有源定向干扰机理的基础上,采用模块化结构设计方法,构建了光电对抗装置仿真试验系统。通过对激光半主动寻的制导原理的研究,分析并提出了模拟激光导引头的主要性能指标及设计原则,为了解决探测精度问题,采用高精度探测器S5981进行激光信号的探测及光电转换;针对源信号弱、噪声大与探测距离的矛盾,采用低噪声宽频放大器,运用前置多级放大,后级自适应放大方法,满足信噪比要求,较好地解决了弱信号放大问题;根据激光导引头的抗干扰措施,采取电路中设置波门的方法,使模拟导引头获得更高的置信度。设计并实现了模拟激光导引头,具备采集、放大和处理激光信号的功能。同时,本文根据仿真试验系统的功能需求,设计了系统软件,实现了数据实时录入、回放及航迹再现,为光电对抗装置的效能评估提供依据。动、静态检测实验结果表明,仿真试验系统工作稳定可靠,兼容性好;模拟激光导引头在野外机载远距离环境下工作性能良好,满足设计要求。
[Abstract]:The simulation test of optoelectronic countermeasures is one of the main ways to evaluate the performance of optoelectronic warfare weapons reasonably. In this paper, computer and simulation techniques are applied to the combat process of laser semi-active homing guided weapons. A hardware-in-the-loop simulation test system for optoelectronic countermeasure device is designed and implemented, which provides a test platform for the index verification and effectiveness evaluation of photoelectric countermeasure device, which has important military significance. Based on the systematic analysis of the mechanism of active directional interference of high repetition frequency laser, a simulation test system of optoelectronic countermeasure device is constructed by using modular structure design method. The principle of laser semi-active homing guidance is studied. The main performance indexes and design principles of analogue laser seeker are analyzed and put forward. In order to solve the problem of detection accuracy, high precision detector S5981 is used to detect laser signal and photoelectric conversion. The contradiction between the noise and the detection distance, the low noise broadband amplifier, the preamplifier and the posterior adaptive amplifier are used to satisfy the requirement of SNR and solve the problem of weak signal amplification. According to the anti-interference measures of laser seeker, the method of setting wave gate in circuit is adopted to make the analog seeker obtain higher confidence. The analog laser seeker is designed and realized, which has the functions of collecting, amplifying and processing laser signal. According to the functional requirements of the simulation test system, the system software is designed in this paper, which realizes the real-time data input, playback and track reappearance, which provides the basis for the effectiveness evaluation of the photoelectric countermeasure device. The dynamic and static test results show that, The simulation test system works stably and reliably and has good compatibility, and the simulated laser seeker works well in the airborne remote environment in the field, which meets the design requirements.
【学位授予单位】：电子科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN97

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