CAJ | 학술논문

“高分二号”卫星遥感相机是国家高分专项重点项目，其视频电子学设备采用了Gbit高速串行数传接口，同时应用了图像预处理算法，传统的快视设备无法满足其测试要求。文章设计了一种高速图像采集与算法验证系统，以Virtex-5现场可编程门阵列为处理核心、Gbit串行/解串芯片为图像输入接口，集成JPEG2000协议芯片、DDR2缓存以及CameraLink图像显示接口。介绍了硬件实现的关键技术，并描述了系统对相机成像功能、高速数传以及图像压缩的验证。该验证系统保障了相机研制，为图像采集和处理提供了参考。
“고분이호”위성요감상궤시국가고분전항중점항목，기시빈전자학설비채용료Gbit고속천행수전접구，동시응용료도상예처리산법，전통적쾌시설비무법만족기측시요구。문장설계료일충고속도상채집여산법험증계통，이Virtex-5현장가편정문진렬위처리핵심、Gbit천행/해천심편위도상수입접구，집성JPEG2000협의심편、DDR2완존이급CameraLink도상현시접구。개소료경건실현적관건기술，병묘술료계통대상궤성상공능、고속수전이급도상압축적험증。해험증계통보장료상궤연제，위도상채집화처리제공료삼고。
GF-2 remote sensing camera is one of the key projects of the National High Resolution Earth Observation System. Its video processing electronic equipment has adopted SerDes (Serializer/Deserializer) data transmission interface and on-board image preprocess algorithm, which leads to the traditional image ac-quisition system not satisfying its test requirement. One test system has been developed to solve this problem. It uses the Virtex-5 field programmable gate array as the processing core, the gigabit SerDes chip as image data input interface, and integrates a JPEG2000 protocol chip, two DDR2 caches and standard CameraLink image display interface. This paper introduces the hardware design and its key technologies realization, followed by rerifying the camera functions, namely the imaging function, high speed serial data transmission and image compression. This system has made great contribution to the development of the camera and has certain refer-ence value for image acquisition system.