快速响应小卫星测试性建模及设计方法研究

项目名称： 快速响应小卫星测试性建模及设计方法研究

项目编号： No.61304237

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 自动化技术、计算机技术

项目作者： 李化义

作者单位： 哈尔滨工业大学

项目金额： 25万元

中文摘要： 快响小卫星是一类面向突发事件进行空间信息快速获取的航天装备，快速测试是其核心需求及显著技术特征。快响小卫星具有嵌套反馈回路、高冗余、多模式以及故障传播不确定等特点，要求在规定时间内实现全覆盖测试，并具备在轨自主测试能力以提高入轨应用的快速性。因此，针对卫星自身特点及对测试的特殊需求，本课题拟采用多信号流图和模糊概率建立快响小卫星测试性模型；基于该模型，采用改进混合二进制粒子群-遗传算法完成测试集多目标优化设计，获得最优地面测试集；针对在轨自主测试所面临的计算资源、存储资源受限以及时间约束等问题，提出了面向任务的在轨测试集优化策略，设计了基于布尔逻辑运算的测试集在轨优化算法；基于改进准深度搜索算法完成快响小卫星测试策略设计，解决具有多模式切换的系统测试策略设计问题；最后，将上述方法应用到某快响卫星的测试，并建立相应的测试系统对研究成果进行验证与应用考核。

中文关键词： 快速响应卫星；测试性；测试策略；；

英文摘要： A small responsive satellite is a kind of space vehicle which is uesed to achieve space information in an emergency,and quick test is its dominant require and remarkable technological character. A small responsive satellite is characteristic of nested feedback loops, redundancy, multi-mode as well as the uncertainty of fault propagation. And it is required that all tests should be finished within a limited period of time, as well in-orbit autonomous testing. In order to meet these needs, multi signal model and fuzzy probability method are adopted to establish a testability model of the responsive small satellite. An Improved HBPSOGA（Hybrid Binary Particle Swarm Optimization Genetic Algorithm）is used to process multi-objective optimization of the test set, and the optimal test set on the ground is achieved. An optimizing method based on Boolean logic is proposed to obtain autonomous testing set for task-oriented in-orbit. The algorithm needs less computation and storage resources, runs fast which is suitable for in-orbit. The improved the prospective depth search algorithm is used to achieve multi-mode switching system diagnostic strategy design. Finally, these methods are applied to a small responsive satellite test experiment. Then,a testing system is constructed to verify and apply the achievements.

英文关键词： responsive satellite；testablity；diagnostic stragegy；；