激光捷联导引头半实物仿真合成视线法研究

Research on synthetic line-of-sight method for laser strapdown seeker based on semi-physical simulation

在分析激光制导半实物仿真系统特点的基础上,结合激光捷联导引头的工作原理,提出了一套基于合成视线的半实物仿真系统视线模拟方法。一方面,基于漫反射屏和三轴转台的激光制导半实物仿真系统架构建立了合成视线仿真模型,并在分析安装误差对合成视线仿真精度影响的基础上设计了合成视线仿真误差修正算法;另一方面,对合成视线仿真模型和误差修正算法进行了仿真计算。仿真结果表明,该方法在工程应用上是可行的,对提高激光制导半实物仿真系统对捷联导引头的测试和仿真能力有重要意义。

Based on the analysis of the characteristics of laser guidance senti-physical simulation system, combined with the working principle of laser strapdown seeker, a line-of-sight simulalion algorithm in semi-physical simulalion system based on synthetic line-of-sight is proposed. On the one hand,the synthetic line-of-sight simulation model is established based on the laser guidance senti-physical simulation system architecture, which is built on diffuse reflection screen and three-axis turntable, and the correction algorithm of synthetic line-of-sight simulation error is designed on the basis of analyzing the influence of installation error on synthetic line-of-sight simulation accuracy; on the other hand,tim synthetic line-of-sight simulation model and error correction algorithm are simulated. The simulation result indicates that this algorithm is feasible in engineering application and is of great significance to improve the test and simulation capability for strapdown seeker of laser guidance semi-physical simulation system.