摘要
针对旋翼无人机对质心干扰场景拍摄的问题,研究了空中摄像平台的部署位置和镜头指向两方面内容,利用空中旋翼无人机和海上机动目标的位置关系推导出空中摄像平台的相对位置,讨论了两种镜头指向方式下的方案可行性。结合实际应用规定摄像平台位于机动目标的正前方,根据小孔成像原理利用相似三角形构建一种简单的成像几何模型。基于此模型,在图像的帧率、像素、飞行目标飞行时间等约束条件下,计算出摄像平台的部署位置,为实际应用提供参考。通过仿真计算,得到了两种拍摄方式下的无人机平台满足要求的位置点。
The aerial camera position and the direction of camera for the rotor UAV aerial photograph which shots the ship centroid jamming are studied. The relative position of the aerial camera platform is derived from the position between the UAV and the moving targets. Considering the differences of the direction of camera,the feasibilities of two schemes are discussed. According to imaging principle and pinhole imaging model,the imaging model of the camera is simplified and the geometric model is constructed in the case that the UAV in the front of the target ship. Due to the existence of restrictive conditions like frame rate,pixel requirements and fight time requirements,the position of the camera platform is calculated and judged. Through simulations,the positions of the platform are obtained in two shooting ways.
出处
《战术导弹技术》
北大核心
2016年第5期77-82,87,共7页
Tactical Missile Technology
