用于机载三线阵CCD相机三维立体摄影的高速数据记录系统

介绍了用于三线阵CCD相机三维立体成像系统的高速实时数据记录系统．该系统包括两个子系统;彩色CCD高速数据存储系统和黑白CCD高速数据存储系统．来自CCD相机的高速数据经cPCI数据采集卡缓冲存储后送往PXI总线,SCSI控制卡与cPCI采集卡在PXI总线上通过DMA方式直接交换数据,不需要CPU干预,使存储速度大大提高。为了测试系统的性能,由机载试验飞行对其性能进行了检验．

High-speed Data Acquisition System for Airborne Three Linear Array CCD Camera for Three-dimensional Photographing

A real time high-speed data acquisition and record system for an airborne three linear array CCD camera used for three-dimentional photographing is presented. This system includes two subsystems: a color CCD high-speed data acquisition and storage subsystem and a monochrome CCD high-speed data acquisition and storage subsystem. After being buffered and stored by a cPCI data acquisition card, the high-speed data from the CCD camera are sent to a PXI bus. Then, a SCSI control card exchanges the data with the cPCI card on the PXI bus in the way of DMA. Because the intervention from CPU is not required in this process, the data storing speed is greatly improved. To test the performance of the system, air flight tests have been carried out.