红外动态场景中小目标轨迹模拟系统的设计  

Small target track simulation system designed for dynamic infrared scene simulation

作　　者：陈亮[1] 屈惠明[1] 顾国华[1] 王文娟[1] 陈钱[1] 

机构地区：[1]南京理工大学电子工程与光电技术学院,江苏南京210094

出　　处：《激光与红外》2011年第10期1144-1149,共6页Laser & Infrared

基　　金：教育部"长江学者和创新团队发展计划"(No.IRT0733);近程高速目标探测技术国防重点学科实验室;江苏省自然科学基金项目(No.BK2008049)资助

摘　　要：传统的红外搜索跟踪系统的室内检测通常使用安放有若干平行光管的检测架,检测架上的平行光管处于不同方位角和俯仰角。这种方法往往精确度较低、体积庞大,且移动不灵活,不适合短距离的室内试验。设计并实现了一种小目标轨迹模拟系统,该系统以高精度步进电机驱动小目标圆盘运动,黑体温度辐射源用来提供目标温度。PC机通过RS-232串口连接步进电机,由VB编写的软件界面设定步进电机运行的速度、方向及运行角度值,给出目标运行坐标轨迹,通过测角精度算法转化为方位与俯仰角。将被测试搜索跟踪系统给出的方位与俯仰角实测值与算法得到的理论值分析比较之后,即可得出被测试搜索跟踪系统精度。文中详细介绍了该小目标轨迹模拟系统的设计与实现,并给出了实验结果与分析。The traditional indoor test of the infrared search and track system usually uses a test device with several collimators,which are fixed at different azimuth and pitching angles.The test device is not suitable for short distance indoor experiments because of its low accuracy,huge size and uneasiness to move.The proposed small target track simulation system drives the small target disk by a precise stepping motor.The blackbody radiation sources provide target temperature.PC connects the stepping motor through RS-232 serial interface,the software interface written with Visual Basic sets the stepping motor′s running speed,direction and the operating angle value.PC shows the object′s coordinates track and then turns them into azimuth and pitching angles through the measuring angle algorithm.Comparing the azimuth and pitching angles measured by the infrared search and track system with the theoretical value then the tested system′s precision is gained.The design and implementation of the small target track simulation system are discussed in detail.Analysis for the experiment results is also presented.

关 键 词：小目标轨迹 测角精度 方位角 俯仰角 

分 类 号：TN216[电子电信—物理电子学]