设计满足高可靠性、长寿命的容错空间计算机,总线架构的设计是重要的内容.总线架构的选择是直接影响到整机的可靠性、数据通量、所能够覆盖的错误集合、能够支持的容错方式等重要的方面.文章尝试比较分析三种适用于紧耦合冗余计算机的总线架构,即串行链控制方式、并行控制方式以及全连接控制方式.“,”The bus architectureisimportant partin the design of a fault - tolerant spacecraft computer with the demand ofhighreliabilityforlong -life operation. The choice of bus architecture will impact directly on the reliability, the data throughput, the error set covered and thefault-tolerant algorithms thatcan be supported .This papertryto analyzethree kindsofbus architecture of tightly - coupled redundant computer, The serial chain control mode. The parallel control mode and The full connective control mode.