第22卷
第10期
2014年10月
文章编号
1004-924X(2014)10-2825-07
光学精密工程
Optics and Precision Engineering
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）
Vol.22No.10
Oct,2014
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“姿态十过载”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°的分辨率小于个周期内的体视线角平均变化量0. 011°满足采样更新的要求，可实现末制导1m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；刻度周数；高分辨率
中图分类号：TJ765.2
文献标识码：A
dol;10.3788/OPE.20142210.2825
Technical characteristics of strapdown image seeker guidance
ZHANG Yue', CHU Hai-rong
(ChangchunInstituteof Optics,FineMechanicsand Physics, ChineseAcademyofSciences,Changchun130033,China)*Correspondingauthor,E-mail;zhangyue@ciomp.ac,cn
Abstract: Technical characteristics and specifications of a platform seeker were analyzed, and the Line of Sight (LOS)angle,the test methods of scale factor_and accuracy,and the guidance system structure of a strapdown seeker were researched. First, the strapdown optical seeker model was established and an extraction method for the angle of LOS was proposed based on the technical characteristics of the platform seeker. Then, the characteristics and test methods of the scale factor for the strapdown seek-er were analyzed, and a steady-state Kalman filter was used to filter the angle of Body LOS(BLOS). e 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 O. 289 °, the scale fac tor error is less than 7%, which meets the scale factor calculation results. Moreover, the strapdown seeker with the resolution of 0. O056 ° was less than the average variation of angle of BLOS to be 0. O11°in one cycle, which meets the sampling update request and achieves the combating precision of 1 m of terminal guidance. These results demonstrate that large area array and high-resolution is an im-
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-1122)