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

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.