A close-to-mission simulation and test environment is built for thorough test of sea-going spaceflight tracking and control application systems to overcome the discrepancy of traditional test methods. Following introduction of the functional requirements of the test platform, this paper describes the configuration and information interaction relationship of the system. A reconfigurable simulation and test design is proposed. Description of simulation model and test procedures based on the platform is given. Applications in mission operations verify design of the simulation and test platform. With adequate flexibility, it meets all test requirements of sea-going spaceflight tracking and control application systems.%针对传统测试方法的不足,提出通过构建一套近似任务的仿真测试环境实现对航天远洋测控应用软件系统的充分测试.首先介绍MSTCAS(航天远洋测控应用软件系统)仿真测试平台的功能需求；其次描述MSTCAS仿真测试平台的系统组成和信息交互关系,提出了可重构的MSTCAS仿真测试平台系统设计方案,给出了仿真模型说明和基于平台的测试流程；最后进行了实践应用.应用证明,该测试平台系统设计合理、灵活通用,能够满足MSTCAS的全面测试需求.
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