微型无人机变焦摄像机设计  

Design of mini-UAV airborne zoom camera

作　　者：迟晓鹏 罗卫兵[1] 刘广斌[1] 

机构地区：[1]武警工程大学信息工程系,陕西西安710086

出　　处：《微型机与应用》2016年第9期97-100,共4页Microcomputer & Its Applications

摘　　要：机载摄像机是微型无人机实施战术侦察的关键设备。本文突破传统机载摄像机采用定焦或基于DSP聚焦的思路,在特定飞行高度,提出变倍同步聚焦技术,并对变倍同步聚焦的基本原理、台阶拟合法等技术进行了研究,对镜头凸轮曲线进行了设计,并利用ZEMAX软件对凸轮曲线进行了拟合和优化,设计了相应的驱动控制电路和视频采集系统。经过飞行测试验证,所设计的快速变倍同步聚焦摄像机的性能达到了空中侦察要求。Airborne camera is the key implementation to carry out the tactical reconnaissance of mini-UAV. This paper breaks through traditional way for DSP focused or fixed focus of airborne cameras. In certain altitude,the technique of synchronous focus zoom and step fitting was studied and put forward,such as design of lens cam curve,fitting and optimization for cam curve using ZEMAX,the drive control circuit and video acquisition system were designed. The flight test results show that the performance of synchronous focus zoom camera can meet the design requirements of aerial reconnaissance.

关 键 词：微型无人机 变焦摄像机 变倍同步聚焦镜头 步进电机驱动 

分 类 号：TN947[电子电信—信号与信息处理]