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建立地面试验验证环境是降低星间链路技术风险的有效途径。针对导航卫星组网功能和性能的测试问题,本文提出一种星间链路组网地面试验验证框架。该框架根据星间链路信息处理流程,设计基于虚(虚拟卫星)实(实际卫星)结合的星地试验方案,并采用正交试验测试技术测试组网算法。通过对星间链路试验场景和试验方法的设计,实现对星间链路组网功能和性能的测试与评估分析。结果表明,该框架能满足单星网络接入、整网组网测试等地面试验验证需求,为降低地面试验成本和风险提供了一种可行方案。
Establishing a ground test to verify the environment is an effective way to reduce the technical risks of inter-satellite links. Aiming at the test of the function and performance of the navigation satellite network, this paper presents a ground test verification framework of the inter-satellite link network. According to the information processing flow of inter-satellite link, this framework designs the star ground test scheme based on virtual (virtual satellite) real (actual satellite) combination and uses the orthogonal test technology to test the networking algorithm. Through the design of test scenarios and test methods for inter-satellite links, the test and evaluation of the functions and performance of inter-satellite links are realized. The results show that the framework can meet the requirements of ground test verification such as single-satellite network access and whole network test, and provides a feasible solution for reducing the cost and risk of ground testing.