为模拟实战环境下半主动激光制导的目标回波能量, 设计并研制了注入式激光能量模拟设备。对激光制导能量传递过程及模拟技术进行研究。首先, 针对激光制导**工作过程, 建立了激光在大气中传输发生散射与衰减的模型, 并针对实战中存在的各种烟雾、降雨、干扰烟剂等进行建模仿真。接着, 设计了激光目标回波能量模拟器的总体方案, 选用DPS-A激光器和布儒斯特角薄膜偏振器模拟激光衰减过程。设计了光纤耦合与匀光准直系统。最后, 构建了激光制导半物理仿真系统, 分别进行了激光回波能量模拟实验、激光导引头标定与激光末制导试验。实验结果表明: 激光能量模拟误差小于30%,导引头线性角度范围内残差小于008°, 测角精度小于045 mrad, 末制导过程体视线角跟踪误差小于02°。该系统可模拟多种实战环境中激光能量传输情况, 且精度高, 能够满足激光制导半物理仿真要求。

In order to simulate the target echo energy of semi-active laser guidance in actual combat environment, an injection laser energy simulation device was designed and developed. The laser-guided energy transfer process and simulation techniques were researched. First of all, aiming at the working process of laser-guided weapons, the laser scattering and attenuation model in the atmosphere were established. Fog, rainfall, and interference smoke existing in actual combat were modeled and simulated. Then, the overall scheme of the laser target echo energy simulator was proposed. The DPS-A laser and Brewster angle polarizer were used to simulate the laser attenuation. A fiber coupling and uniform light collimation system was designed. Finally, a laser-guided semi-physical simulation system was constructed, laser echo energy simulation experiments, seeker calibration and laser terminal guidance experiments were performed, respectively. The results show that laser energy simulation error is less than 3%, the residual error within the linear range of the seeker is less than 008°, the accuracy of angle measurement is less than 045 mrad, and the tracking error of line-of-sight angle in the terminal guidance process is less than 02°. The system can simulate laser energy transmission in a variety of real-world environments with high accuracy, which can meet the requirements of laser-guided semi-physical simulation.