【作者】 张祥金；

【导师】 张合；

【作者基本信息】 南京理工大学 ， 机械电子工程， 2007， 博士

【摘要】 激光近程定距技术是提高武器目标毁伤效能的一项重要技术。激光因大功率、优质光束质量、强抗干扰能力，使得武器系统具有高命中率，因此在现代战争中正发挥着越来越重要的作用。激光近程定距技术正成为世界的研究热点。本文以常规弹药前置式激光近程定距系统为背景，以高速弹药(速度≥700m／s)为应用对象，通过理论分析和试验验证系统地研究了激光近程定距的主要关键技术。在设计理论方面，本文首先对激光近程定距的四种作用体制进行了深入地研究，得出了不同体制的选用原则。对尾翼旋转弹前置式激光近程定距系统的摆动理论进行研究，得出摆动误差变化规律。对脉冲半导体激光器(laser diode，LD)发射系统模型、激光目标反射特性、激光接收系统与信号处理系统进行了深入理论分析。对超音速下弹头激波对前置式激光光束传输的光程影响建立了数学建模，并对中低马赫情况下的光程影响进行数值仿真和风洞试验分析研究。在技术实现方面，本文对脉冲鉴相体制、基于FPGA的的高频计数器脉冲激光测距技术、窄脉宽大功率半导体脉冲激光(LD)电源技术和光学系统抗冲击技术进行了研究，设计了可满足常规弹药要求的激光近程定距控制电路和系统结构，并成功应用于系统样机的研制。针对与定距系统相关各类透明树脂材料的光学等特性进行深入研究，首次提出了使用PC树脂材料承受高过载的可靠性，并成功地试验证明其抗高过载强度≥45000g。对系统用镜片的镀膜工艺进行了深入研究，首次采用了PC树脂材料作为激光定距系统光学带通膜基片，并且合作成功实现了PC树脂的低温带通镀膜，达到设计应用需求。最后，通过对激光近程定距系统原型样机的动态试验，获得了大量试验数据，对实验结果和数据进行了分析，对激光近程定距系统的研制具有较高的参考价值。更多还原

【Abstract】 Laser short range fixed distance technology is very important in promoting theweapons target-injuring efficiency. Because of the high power, good quality of beam, andstrong anti-jamming capability, laser makes the weapon system having the high ratio inhitting the target, and plays more and more significant role in modern battle. Laser shortrange fixed distance technology is becoming the research hotspot around the world. Thisdissertation takes the general ammunition forward laser fixed distance as background andhigh speed ammunition as reseach object(velocity≥700m/s), the design rule and theimplementation technique of laser short range fixed distance system are systematicallyresearched.In the sections of the design theories, four types of function mechanism of laserfixed distance are discussed so that the adoption criterion is put out. In the research onthe swing theory of pulsed laser system located on the head of empennage circumgyratebomb, the rules of swing error are gained; besides the sending system model of laserdiode, the reflect charteristic of object, the receiving system and the signal processingsystem are all anaysised deeply; and lightlength influent math model in laser beamtransmission is established for the warhead shockwave in supersound velocity, numericalvalue simulation is processed for the lightlength influence under the middle or lowvelocity, and verifying tests are anaysised in the wind tunnel.In the sections of the technique implementation, the mechanism of pulse phaseidentification; the laser range finding technology of high frequcnce counter based onFPGA, the LD power technology of narrow pulse width high power, and anti-impacttechnology of the optical system are all researched, laser proximity fuze control circuitand fuze structure have been designed for general ammunition, fuze samples are applied.To kinds of colophony material, we reseached their optical and other characters, broughtforward firstly over-loading dependability of PC colophony material, and triumphantlytested verfying the over-loading dependability of PC≥45000g. Film-plating technics oflens are anaysised, and PC material is firstly used as the base patch for the system laserband-pass filter film, and the technics of PC colophony low temperature film plating iscollaborately successful, met the needs of designing applications.At last, a series of dynamic shot experiment of system antitype sample are tested,lots of experimental data are acquired. Under the analysis of the test result and the data,high reference value is gained for the developing laser short range fixed distance system.更多还原