Binocular vision-based short-range navigation method for autonomous aerial refueling
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摘要: 为解决插头锥管式自动空中加油中的近距精确导航问题,提出了一种基于双目视觉的近距导航方法.该方法使用受油机上的两个摄像机拍摄加油锥管端面上光学标记的图像,采用轮廓跟踪法检测图像中的光斑区域,并将其灰度重心作为光学标记的像点,根据对极几何约束完成像点的匹配,利用空间圆形拟合法计算加油锥管的位置和姿态.建立了空中加油的三维虚拟场景对该导航方法进行仿真验证,仿真结果表明,该方法在近距离加油对接时具有很高的位置和姿态测量精度,可以满足自动空中加油的需要.Abstract: To solve the short-range precise navigation problem in the probe-and-drogue autonomous aerial refueling, a binocular vision-based short-range navigation method was presented. This method used two cameras installed on the receiver to capture the images of the optical markers mounted on the end surface of the drogue, then detected the light spot regions in the images by contour tracking algorithm and calculated their gray scale centers as the image points of the optical markers. These image points were matched according to epipolar geometry constraints, and the position and attitude of the drogue were calculated using space circle fitting arithmetic. A three-dimensional virtual scene of probe-and-drogue aerial refueling was established to simulate this navigation method. Simulation results show that this method has a high position and attitude measurement accuracy during the short-range docking maneuver, fulfilling the demand of autonomous aerial refueling.
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Key words:
- autonomous aerial refueling /
- visual navigation /
- binocular vision
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[1] 董新民,徐跃鉴,陈博.自动空中加油技术研究进展与关键问题[J].空军工程大学学报:自然科学版,2008,9(6):1-5 Dong Xinmin,Xu Yuejian,Chen Bo.Progress and challenges in automatic aerial refueling[J].Journal of Air Force Engineering University:Natural Science Edition,2008,9(6):1-5(in Chinese) [2] Pollini L,Campa G,Giulietti F,et al.Virtual simulation set-up for UAV-s aerial refueling .AIAA 2003-5682,2003 [3] Pollini L,Mati R,Innocenti M.Experimental evaluation of vision algorithms for formation flight and aerial refueling .AIAA 2004-4918,2004 [4] Lu C,Hager G D,Mjolsness E.Fast and globally convergent pose estimation from video images[J].IEEE Transaction on Pattern Analysis and Machine Intelligence,2000,22(6):610-622 [5] Valasek J,Kimmett J,Hughes D,et al.Vision based sensor and navigation system for autonomous aerial refueling .AIAA 2002-3441,2002 [6] Tandale M D,Bowers R,Valasek J.Trajectory tracking controller for vision-based probe and drogue autonomous aerial refueling[J].Journal of Guidance,Control,and Dynamics,2006,29(4): 846-857 [7] 陆宗骐,金登男.Visual C+ +.NET图像处理编程[M].北京:清华大学出版社,2006:323-342 Lu Zongqi,Jin Dengnan.Visual C+ +.net programming of image process[M].Beijing: Tsinghua University Press,2006:323-342(in Chinese) [8] 张广军.视觉测量[M].北京:科学出版社,2005:146-147 Zhang Guangjun.Vision measurement[M].Beijing: Science Press,2005:146-147(in Chinese) [9] 潘国荣,陈晓龙.空间圆形物体数据拟合新方法[J].大地测量与地球动力学,2008,28(2):92-94 Pan Guorong,Chen Xiaolong.A new method for 3D circular object fitting[J]. Journal of Geodesy and Geodynam Ics,2008,28(2):92-94(in Chinese)
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