基于FPGA的红外焦平面阵列实时非均匀性校正  

Real-time Nonuniformity Correction of IRFPA based on FPGA

作　　者：王炳健[1] 刘上乾[1] 李庆[1] 

机构地区：[1]西安电子科技大学技术物理学院,陕西西安710071

出　　处：《半导体光电》2006年第1期79-82,共4页Semiconductor Optoelectronics

基　　金：国家自然科学基金资助项目(60377034)

摘　　要：提出了一种以FPGA为核心的焦平面器件实时非均匀性校正方法,能够实时地完成非均匀性校正系数的在线计算、红外图像的非均匀性校正。采用浮点乘法器、浮点除法器进行运算,提高了计算精度。采用并行处理结构和流水线技术,使系统的处理速度达到20 M×12 bit/s,特别适用于大面阵、高帧频红外焦平面成像系统。系统仅使用一片FPGA,有利于系统的小型化。The two-point correction method is analyzed,and a new real-time nonuniformity correction algorithm, for IRFPA is proposed by using field programmable gate array （FPGA）. The high operation precision is obtained by using floating-point multiplier, floating point divider. At the same time, by using parallel architecture and pipeline technique, the system processing speed is as high as 20 M × 12 bit/s. It is approciate greatly to large arrays and high frame frequency infrared imaging system. The system is miniaturized by using only one FPGA.

关 键 词：IRFPA FPGA 实时非均匀性校正 浮点运算 小型化 

分 类 号：TN216[电子电信—物理电子学]