摘要
提出了一种激光三维成像技术,该方法以推扫方式工作,采用数字微镜器件(Digital Mirror Device,DMD)来进行激光回波脉冲飞行时间(Time of Flight,TOF)的空间转换。由于目标上不同距离点回波脉冲的飞行时间不同,当脉冲到达时微透镜阵列将从一个状态转换到另一个状态,在接收端传感器焦平面上显示不同相对位置的条纹,利用条纹相对距离可以重建目标的剖面轮廓距离像。相比于其他三维成像技术,该技术具有成像速率高、探测视场角大、结构简单、体积小易于集成化等优点。
A novel 3 D laser imaging technique which works at push broom mode is proposed. The digital micromirror device（DMD） is used to complete the spatial transformation of laser echo＇s time of flight（TOF）. Because the flight time of echo pulse changes with the distance of the targets, the micro mirrors transform from a status to another when pulses arrive at the DMD,and the focal plane array（FPA） of the receiver sensors shows the different relative position streaks. The section range profile of the target was rebuilt by the relative distances of streaks. Comparing with the other 3D imaging technologies ,this technology has the advantages of high imaging rate, large field of view, simple structure and small volume etc.
出处
《激光与红外》
CAS
CSCD
北大核心
2015年第9期1023-1027,共5页
Laser & Infrared
基金
新疆高校科研计划科学研究重点项目(No.XJEDU2011I49)
伊犁师范学院重点项目(No.2011YNZD011)资助
