Searching Method of the Wide Area of Optical Recon Pod for Sea Targets
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摘要: 光电侦察吊舱对海搜索方式与搜索范围是直升机对海搜索效率与搜索力配置研究的基础。基于直升机及其光电侦察吊舱的性能特点,提出了直升机对海搜索的两种基本搜索方式和覆盖面积;建立了直升机搜索面积计算模型,为直升机系统采用不同的搜索方式进行搜索时计算其搜索效率和搜索力的配置提供了决策依据。为了易于搜索区域发现感兴趣的目标,同时介绍了针对扫描搜索区域图像拼接的处理方法。Abstract: The search efficiency of a sea target helicopter can be studied based on the searching method and search width of the optical recon pod of the helicopter. According to the characteristic performance of the optical recon pod and helicopter, two basic methods of searching and covering square are proposed for the helicopter to search the sea target. According to the developed search covering square, the commander can determine how to configure the recourses to attain the optimal efficiency. In addition, the processing method for image stitching for the scanned search area is introduced to identify the target of interest in the easy search area.
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Key words:
- optical recon pod /
- servo control /
- image stitching
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表 1 红外热像仪的视场与俯仰方向推扫角速度Ω关系
Table 1. IR-angle of view and pitch-sweep angular velocityΩ relation
IR view Pitch angle sweep Ω Big view field
(16.5°×13.3° f=33 mm)4.3°/s Medium view field
(8.3°×6.6° f=66 mm)2.15°/s Small view field
(4.15°×3.3° f=13 2 mm)1.1°/s 表 2 可见光摄像机视场与俯仰方向推扫角速度Ω关系
Table 2. OE-angle of view and pitch-sweep angular velocityΩ relation
OE view Pitch angle sweep Ω Big view field
(18°×10° f=17 mm)9.42°/s Small view field
(3°×1.67° f=102 mm)1.57°/s 表 3 红外热像仪的视场、直升机的飞行速度和吊舱的俯仰角度关系表
Table 3. The relationship table of view field of IR、flight speed of the helicopter and pitching angle of the pod
IR view Seep of the plane 240 km/h 100 km/h 50 km/h The ceiling pitch angle range Big view field
(16.5°×13.3° f=33 mm)+110° to -20° +110° to -20° +110° to -20° +110° to -20° Medium view field
(8.3°×6.6° f=66 mm)+110° to -20° +110° to -20° +110° to -20° +110° to -20° Small view field
(4.15°×3.3° f=132 mm)+110° to +32° +110° to -20° +110° to -20° +110° to -20° -
[1] 李承选, 朱斌. 国外舰载红外搜索跟踪系统[J]. 国防科技, 2005(8): 38-41. https://www.cnki.com.cn/Article/CJFDTOTAL-GFCK200508013.htmLI Chengxuan, ZHU Bin. Ship-borne infrared search and tracking system abroad[J]. National Defense Technology, 2005(8): 38-41. https://www.cnki.com.cn/Article/CJFDTOTAL-GFCK200508013.htm [2] 谭安胜, 贺凯, 郭江龙. 舰载无人机光电载荷对海搜索方式与搜索宽度[J]. 指挥控制与仿真, 2011(6): 32-33. https://www.cnki.com.cn/Article/CJFDTOTAL-QBZH201106004.htmTAN Ansheng, HE Kai, GUO Jianglong. The Search Method and Search Width of Optical Payload of Ship-borne UAV for Sea Target[J]. Command Control and Simulation, 2011(6): 32-33. https://www.cnki.com.cn/Article/CJFDTOTAL-QBZH201106004.htm [3] 谭安胜. 舰载无人机光电载荷对海上目标搜索决策分析[J]. 指挥控制与仿真, 2010(4): 22-32. https://www.cnki.com.cn/Article/CJFDTOTAL-QBZH201004004.htmTAN Ansheng. The analysis of Ship-borne UAV's photoelectric load to the sea target search decision[J]. Command Control and Simulation, 2010(4): 22-32. https://www.cnki.com.cn/Article/CJFDTOTAL-QBZH201004004.htm [4] 谭安胜, 叶丹, 赵金强. 驱护舰编队对潜防御效率与决策分析[J]. 军事运筹与系统工程, 2006(4): 65-69. https://www.cnki.com.cn/Article/CJFDTOTAL-JSYC200604014.htmTAN Ansheng, YE Dan, ZHAO Jinqiang. Analysis of submarine defense efficiency and decision-making by escort fleets[J]. Military Operations and Systems Engineering, 2006(4): 65-69. https://www.cnki.com.cn/Article/CJFDTOTAL-JSYC200604014.htm [5] 苏宇. 基于特征点的图像拼接技术研究[D]. 西安: 西安电子科技大学, 2008.SU Yu. Research on Image Mosaic Based on Feature Points[D]. Xi'an: Xi'an University of Electronic Science and Technology, 2008.