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全捷联图像导引头制导的技术特点

归档日期:07-18       文本归类:激光导引头      文章编辑:爱尚语录

  全捷联图像导引头制导的技术特点_电子/电路_工程科技_专业资料。分析了平台式导引头的技术特点与要求,对捷联式导引头视线角提取方法、刻度因数及精度测试方法、制导系统结构等进行了研究.首先,建立了全捷联光学导引头的数学模型,提出了视线角提取方法;接着,分析了全捷联导引头刻度因数的特性及其测试方法,并利用稳态卡尔曼滤波器对体视线角进行滤波;最后,

  第22卷第10期 2014年lO月 光 学精密工程 0ptics and Precision Engineering V01.22 No.10 Oct.2014 文章编号1004—924X(2014)10—2825—07 全捷联图像导引头制导的技术特点 张 跃”,储海荣 (中国科学院长春光学精密机械与物理研究所,吉林长春130033) 摘要:分析了平台式导引头的技术特点与要求,对捷联式导引头视线角提取方法、刻度因数及精度测试方法、制导系统结 构等进行了研究。首先,建立了全捷联光学导引头的数学模型,提出了视线角提取方法;接着,分析了全捷联导引头刻度 因数的特性及其测试方法,并利用稳态卡尔曼滤波器对体视线角进行滤波;最后,利用“姿态+过载”驾驶仪,结合“近似 积分比例导引”进行全捷联导引头的制导与控制系统仿真实验。测试与仿真实验显示:全捷联导引头视场角大于0.289。 时的刻度因数误差小于7%,符合刻度因数理论计算结果;0.0056。的分辨率小于一个周期内的体视线。,满足采样更新的要求,可实现末制导1 rn的打击精度。实验结果表明大面阵和高分辨率是全捷联图像导引头制导 应用的重要手段。 关 键词:平台式导引头;全捷联导引头;光学成像导引头;刻度因数;高分辨率 文献标识码:A doi:10.3788/OPE.20142210.2825 中图分类号:TJ765.2 Technical characteristics of strapdown image seeker guidance ZHANG Yue。,CHU Hal—rong (Changchun Institute of Optics,Fine Chinese Academy *Co¨rP5po,2di729 Mechanics and Physics, of Sciences,Changchun 130033,China) author,E-mail:zhangyue@ciomp.ac.cn Abstract:Technical characteristics and specifications of of Sight(LOS)angle,the of an a a platform seeker were analyzed,and the Line structure test methods of scale factor and accuracy,and the guidance system strapdown seeker were researched.First,the strapdown optical seeker model was established and based on extraction method for the angle of LOS was proposed test the technical characteristics of the platform seeker.Then,the characteristics and er methods of the scale factor for the strapdown seek— to were analyzed,and a steady—state Kalman filter was used filter the angle of Body LOS(BLOS). Finally.the“attitude+overload”autopilot combined with“integral approximation proportional guid— ance”were used to simulate strapdown seeker guidance and its control system.Test and simulation results show that when the angle of BLOS for strapdown seeker is greater than 0.289。,the scale fac— tor error iS less than 7%,which meets the scale factor calculation results.Moreover,the strapdown to seeker with the resolution of 0.0056。was less than the average variation of angle of BLOS O 1 1。in one be 0. cycle,which meets the sampling update request and achieves the combating precision of 1 area m of terminal guidance.These results demonstrate that large array and high—resolution is an im一 收稿日期:2013—08—05;修订日期:2013—09—22. 基金项目:中国科学院知识创新工程国防科技创新重要项目(No.YYYJ一1122) 万方数据

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