函数拟合红外焦平面阵列非均匀性校正FPGA实现研究

Realization of Nonuniformity Correction for IRFPA Based on FPGA Using Function Fitting

结合红外焦平面阵列(Infrared Focal Plane Array,IRFPA)非均匀性校正的工程实际,设计了基于函数拟合的校正算法,采用大容量高速现场可编程门阵列(Field Programmable Gate Array,FPGA)器件,实现了该非均匀性校正系统,它能有效适应红外焦平面阵列器件响应特性的大动态范围和非线性,具有体积小、运算速度快和校正准确度高等优点.

Upon considering the engineering practice of the nonuniformity correction of infrared focal plane array （IRFPA）, a correction algorithm based on function fitting is designed. The nonuniformity correction system of IRFPA is realized by using large-capacity high-speed field programmable gate array （FPGA） device. The system can effectively adapt to the broad dynamic range and non-linearity of response characteristic of IRFPA with some advantages such as small size, fast speed and high correction precision.