基于FPGA的线阵探测器非均匀校正的实现

摘要

充分利用了FPGA的硬件资源，提出一种采用电路逻辑设计的FPGA来实现两点校正；利用FPGA中的浮点加法器、浮点除法器、浮点乘法器，以及内部RAM、 ROM存储器，可以实时计算校正系数，然后对线阵红外探测器进行非均匀性校正，保证了校正精度。同时，充分利用FPGA并行处理能力强的特点，使系数、图像数据的读取在一个时钟周期内完成%　　Based on the FPGA hardware resources, a FPGA in the logic circuit design is presented to achieve the two-point correction. The floating-point adder, floating-point divider, floating-point multiplier and the inter⁃nal RAM, ROM memory in FPGA can be used to calculate the correction factors in real time, and then the non-uni⁃formity correction is completed on the linear array infrared detector, thus the correction accuracy is ensured. At the same time, the coefficient and the reading of image data can be completed in a clock cycle by using the parallel pro⁃cessing ability of the FPGA.