基于FPGA的非制冷焦平面阵列驱动电路设计  

Design of the Drive Circuit of Uncooled Focal Plane Array Based on FPGA

作　　者：盛翠霞[1] 唐和景[2] 李田泽[1] 

机构地区：[1]山东理工大学电气与电子工程学院,淄博255049 [2]山东理工大学实验与国有资产管理处,淄博255049

出　　处：《长春理工大学学报（自然科学版）》2008年第3期62-64,共3页Journal of Changchun University of Science and Technology(Natural Science Edition)

基　　金：总参测绘局资助项目(06241SR060)

摘　　要：非制冷红外热成像系统的核心是非制冷焦平面阵列(UFPA),其发展水平直接决定了非制冷热成像系统的发展。而焦平面阵列驱动电路性能的优劣直接影响UFPA输出信号的质量,从而决定了红外热像仪的品质参数。因此,研制出一种性能好的UFPA驱动电路非常重要。文中提出了实现320×240红外非致冷焦平面阵列(UFPA)驱动电路优化设计的方法。采用Xilinx公司的Virtex-E系列综合可编程逻辑器件FPGA,利用VerilogHDL硬件描述语言设计时序电路,采用LINEAR公司的LDO线性稳压器提供偏置电压,从而完成非制冷红外焦平面阵列的驱动。仿真与实验结果证明此方案可行。The core ofuncooled infrared （ IR ） thermal camera system is focal plane array.It＇s development directly decide the progress ofuncooled infrared （ IR ） thermal camera system .While the drive circuit of focal plane array influence the qual- ity of signal ofUFPA, so as to affect the the character parameter. Therefore developing UFPA drive circuit of superior ability is very important.Design of the drive circuit of 320 ×240 uncooled infrared focal plane array （UFPA） is proposed in the paper. Xilinx＇s Virtex Series complex programmable logic device FPGA is adopted to design the timing circuit. Verilog HDL lan- guage is adopted in design. LDO voltage regulator was adopted by this system to perform the bias of UFPA .so the drive cir- cuit of UFPA is finished. The result of simulation and test proves that the scheme is feasible.

关 键 词：红外焦平面阵列 驱动电路 偏置电压 低压差稳压器 

分 类 号：TN215[电子电信—物理电子学]