摘要
目前,为了进行空间科学实验,多种卫星搭载航天CCD相机以便获取图像数据;而在地面对星载图像处理系统的工业检测需要大的分辨率及更高灵敏度的CCD工业相机;Camera Link格式的视频信号接口具有传输速率快、电子噪声干扰小等优点,广泛的应用于航天CCD相机中;由于CCD工业相机的价格高昂、输出不够灵活等限制原因,需要设计一款基于PCIe2.0的Camera Link接口相机模拟系统,代替航天CCD相机,作为星载图像处理系统检的检测时的信号源;该相机模拟系统以FPGA为核心,由DDR3存储器、Camera Link驱动芯片、PCIe接口等组成,实现输出分辨率高达8 000×6 000的多种分辨率的图像数据,可以灵活的输出测试所需的特定图像,为星载图像处理系统检的检测提供稳定灵活的图像数据,以满足对星载图像处理系统检测测试的需求。
Currently, a variety of satellites equipped with aerospace CCD cameras to acquire image data. The industrial detection of aero- space image processing system requires the CCD industrial camera with large resolution and higher sensitivity. The video signal interface on camera link is widely used in aerospace CCD camera because of the advantages of high transmission speed and low electronic noise interfer- ence. Because of the high price of aerospace CCD industrial camera, and the inflexible output, a camera link interface camera simulation sys- tem based on PCIe2.0 is designed to replace the aerospace CCD industrial camera, as the signal source on the detection of aerospace image processing system. The camera simulation system is composed of the FPGA, DDR3 memory, Camera Link driver chip, PCIe interface and other components , and FPGA is the core. The camera simulation system can realize that the output image resolution is up to 8000 X 6000, and output specific images required by the industrial detection. Therefore, the camera simulation system can provide stable and flexible high resolution image data to meet the demand by industrial detection of aerospace image processing system.
出处
《计算机测量与控制》
2017年第11期150-153,158,共5页
Computer Measurement &Control
