新一代并行处理星载计算机技术研究

为提高卫星的整体性能，对并行处理技术在集中式控制体系结构卫星平台的关键部件——星载计算机中的应用进行了研究。所设计的星载计算机采用了总线仲裁和故障隔离技术，并具有图像处理等复杂功能。通过并行双CPU资源的冗余重构设计，可保证在某个CPU发生故障后实现星戴计算机的降级使用，提高了星载计算机的可靠性，并给出了监控软件的流程。最后，采用离散傅里叶变换(DFT)运算，对设计的计算机的并行处理能力进行了预估。

Research of New Satellite Computer Technology for Parallel Process

To improve the performance of the satellite, the application of parallel process technology in the on-broad computer of some satellite of the centralized control was put forward in this paper. The computer designed which was adopted the technology of bus arbitration and trouble isolation had the abilities such as the image processing. And the resource reconstruction design of parallel double central processing unit (CPU) redundancy ensured the using in the case of some CPU failure, which enhanced the reliability of on-board computer. The flowchart of the monitor software was also given. At last, the prediction of the parallel processing ability of the designed computer was made by the method of discrete Fourier transform.