为满足红外相机的高灵敏度、实时性、小型化和集成化要求，采用384×288长波 红外焦平面探测器的四通道输出模式，以Altera的cyclone3系列芯片作为主控制器，并利用1块4 M大小的SRAM和 一块4 M大小的flash为辅助，设计了一套基于FPGA的图像数据处理系统。该系统通过指令控制能对图像背景进行 采集与消除、细分采样叠加和数字TDI处理等。该系统还具有推扫和凝视功能，由Verilog语言实现，可移植性强。 实验结果表明，该系统能够代替上位机对图像进行实时处理，得到高灵敏度的清晰图像。

To meet the requirements of high sensitivity, real time, miniaturization and integration of an infrared camera, an image data processing system based on FPGA is designed. The system uses the four-channel output mode of a 384×288 long-wave infrared focal plane array detector, takes a chip in Altera cyclones family as the main controller and uses a 4 M bit SRAM and a 4 M bit flash as the auxiliaries. It can implement the collection and elimination of image background, oversample-superposition and digital TDI etc through instruction. The system also has the functions of push-broom scanning and staring imaging which are achieved by Verilog language. Its transplantation is strong. The experimental results show that the system can implement real-time processing of images instead of PC and obtain clear images with high sensitivity.