单片FPGA的小型非制冷红外机芯设计  

Design of miniaturized uncooled infrared movement based on FPGA

作　　者：顾鑫[1,2] 曹丹华[1] 吴裕斌[1] 栾永昕[2] 王伟成[3] 

机构地区：[1]华中科技大学光学与电子信息学院,湖北武汉430074 [2]江苏北方湖光光电有限公司,江苏无锡214035 [3]南京大学软件学院,江苏无锡210000

出　　处：《传感器与微系统》2017年第6期83-85,89,共4页Transducer and Microsystem Technologies

摘　　要：针对传统的基于数字信号处理器(DSP)+现场可编程门阵列(FPGA)的非制冷红外机芯平台存在体积大、功耗大、实时性差、系统集成度低等不足,提出了一种基于单片FPGA的小型化非制冷红外机芯平台设计。针对25μm非制冷红外探测器,为满足小型化、低功耗要求,平台在采用先进的FPGA处理器和DDR3存储器技术的同时,将硬件逻辑算法与NIOS Ⅱ软核相结合,完成对红外探测器的时序驱动、温度控制、图像的非均匀性处理、图像增强以及各种人机接口控制。实验结果表明:该系统成像质量较高,系统功耗小于2 W,系统延时小于0.5 ms,系统具有较强的可拓展性。Aiming at problem that traditional uncooled infrared imaging system which based on DSP ＋ FPGA has many disadvantages such as large volume,high power consumption,poor real-time performance,low system integration,and so on,a design of miniaturized uncooled infrared imaging system based on FPGA is proposed. The design aims at 25 μm uncooled infrared detector. The latest FPGA processor and DDR3 memory technology are adopted to meet the requirement of miniaturization and low power consumption. A novel solution of combination of hardware logic algorithm and NIOS Ⅱsoft core architecture is proposed. By this way,complete timing driving of infrared detector,temperature control,non-uniformity processing of image,image enhancement,man-machine interface control. Experimental results show the system owns characteristics of higher imaging quality,power consumption of system is less than 2 W,system delay is less than 0. 5 ms and the system can be easy extended.

关 键 词：非制冷红外机芯 现场可编程门阵列 IP核 NIOS Ⅱ 

分 类 号：TN216[电子电信—物理电子学]