基于大气测量信息的风估计算法研究

针对投放开环飞行子弹药的空地布撒武器命中精度受平面风影响严重的问题,提出在具有SINS/GPS系统的空地制导布撒武器硬件基础上,加装大气测量设备进行平面常值风速、风向估计.根据空地制导武器的不同射程、动力及弹道方案,分别提出开环制导飞行风速估计算法及闭环飞行风速估计算法.建立六自由度模型,利用相应误差源对闭环风速估算方法进行验证与精度分析.仿真表明该算法精度较高,具备较强的实际工程应用潜力.

Study of the Method of Wind Estimate Based on Measuring Air Data

Wind estimation methods based on air data computer are studied to deal with the error of the dispenser caused by constant wind. The arithmetical method of wind estimate for opening guidance loop with long range, invariable speed and height cruise missile and the method of wind estimate for closing guidance loop with short range and passive sliding trajectory air-to-ground dispenser were proposed, respectively. The 6-DOF dynamic model for dispenser was given. The method of wind estimate for closing guidance loop was proved through the simulation. The results show that the accuracy of the wind estimate is well enough to be used in engineering.