简要阐述了相控阵雷达中数据处理计算机双机冗余的特点，从雷达系统可靠性的角度对双机冗余进行了总体设计。结合软硬件实现数据处理计算机的双机冗余设计，给出了故障监测和系统切换的硬件与软件框图，分析了双机容错结构系统重构策略与过程。最后略述数据处理计算机双机冗余设计在相控阵雷达控制系统中的应用情况。

The features of dual redundancy for data processing computer in the phased array radar are described briefly ,and the dual redundancy system is designed with higher reliability. The dual redundancy design for data processing computer is realized with the aid of software and hardware, and the block diagrams of hardware and software for fault detection and system switching are given, then reconstructing strategy and its process of dual tolerance system are analyzed. Finally, applications of dual redundancy design in the control system of the phased array radar are proposed.

TN958.92