大规模红外干涉信号并行获取技术研究  

Research on Parallel Acquisition Technology of Large Scale Infrared Interference Signals

作　　者：王海英[1] 陈仁[1] 孙晓杰[1] 华建文[1] 

机构地区：[1]中国科学院上海技术物理研究所,上海200083

出　　处：《光学与光电技术》2015年第4期28-35,共8页Optics & Optoelectronic Technology

基　　金："十二五"预研(Y1K130090)资助项目

摘　　要：红外焦平面探测器广泛应用于国防和科学探测等领域,由于其探测单元多,信号的输出一般采用读出电路结构,因此,信号的获取与单元型探测器有本质区别。针对32×32元焦平面探测器的信号获取,对相关的软硬件进行了设计与调试,最终完成了包括探测器偏置电路设计、探测器读出时序设计、多通道数据采集和传输于一体的系统集成,成功实现对焦平面探测器干涉信号获取。实验证明采用红外焦平面,通过边积分边读出,先积分后读出的工作模式可以完成对干涉信号的采样,采用16通道并行采样和分时输出,可以实现干涉信号的有效传输和数据存储。Infrared focal plane detector is widely used in areas such as national defense and scientific detection. In view of more detection units in the focal plane, the output of the signal generally employ the readout circuit, therefore, the signal ac- quisition is different from unit detector. Aiming at signal acquisition of 32× 32 focal plane detector, the relevant design and debugging associated with hardware and software are carried out. Several parts such as bias circuit of detector, readout tim- ing, multi-channel data acquisition and transmission are integrated. As a conclusion, the system can complete interferogram signal sampling and the data of 16-channel can be transmitted and saved correctly.

关 键 词：傅里叶光谱仪 焦平面 干涉 边积分边读出 

分 类 号：TN215[电子电信—物理电子学]