基于光谱特性的高判别准确度激光近场探测传感器研究  

Research on high recognition accuracy laser near field detection sensor based on spectrum characteristics

作　　者：刘舒扬 张晨[2] 赵安娜 李奇峰 贾晓东[2] Liu Shuyang;Zhang Chen;Zhao Anna;Li Qifeng;Jia Xiaodong(Tianjin University,School of Precision Instrument and Optoelectronic Engineering,Tianjin 300072,China;Tianjin Jinhang Institute of Technical Physics,Tianjin 300381,China)

机构地区：[1]天津大学精密仪器与光电子工程学院,天津 300072 [2]天津津航技术物理研究所,天津 300381

出　　处：《红外与激光工程》2020年第4期58-62,共5页Infrared and Laser Engineering

摘　　要：激光近场探测是激光测量重要的应用方向之一,尤其是基于距离信息的近场探测系统有着巨大的应用前景。传统的激光近场探测系统只依靠距离信息给出信号,而不判别反射距离信号的物体是否为目标,可能导致误报。基于光谱特性进行目标识别会大大减少激光近场测量系统的误报率,极大提高判别准确度。设计实现了一种单芯片的光谱分析器件,利用半导体技术将光谱元件和光电元件进行单芯片的集成,从而减小了传统光谱分析系统的体积和质量。实验结果表明,该微系统级的光谱分析芯片具有识别既定伪装物体的能力,使得该技术具有在激光近场探测中应用的前景。Laser near field detection plays a crucial role in the laser measurement products series and has been successfully and widely applied in lots of field. Traditional laser near field detection system transmits the triggering signal according to the distance information, without being able to judge whether the distance signal is obtained from the target or not. As a result, a false positive could happen and the performance of the system would be weakened. However, recognition based spectral information can improve accuracy. In this paper, a target recognition system, which was compatible for the classical laser fuse scheme, based on spectrum analysis was proposed to increase the detection accuracy of the laser fuse system. Some suggestions about the general design of the improved laser fuse system with spectrum analysis sensor were also offered including active and passive detection with imaging function as an option. Moreover, based on the CMOS technology, a monolithic spectrum analysis sensor was designed and fabricated, which integrated the spectral element on top of the optoelectronical sensor in one chip. Thanks to the greatly reduced size and the weight, this spectrum analysis sensor had potential application in practice. The experiment results show that the capability of such system on chip(SOC) sensor in distinguishing the target from the camouflage.

关 键 词：激光近场探测 单芯片 CMOS工艺 光谱分析 分类识别 

分 类 号：TN209[电子电信—物理电子学]