新一代GNSS接收机的智能跟踪状态评估技术

新一代全球导航卫星系统的接收机需要根据用户所处环境，自适应地调整接收机内部参数以达到最稳健的导航效果。这就要求接收机在运行过程中通过评估跟踪状态去检测和分析用户场景。基于对传统接收机控制系统缺陷的分析，提出了智能接收机的概念、特点及系统框架；在此基础上设计、分析接收机的智能跟踪状态评估算法；最后通过仿真验证了所设计的算法可以有效地识别场景及场景间的切换。

Intelligent Tracking State Estimation Technology for New Generation GNSS Receivers

New generation global navigation satellite system （GNSS）receivers should adjust internal parameters automatically according to the users′ locations to provide better navigation service. For this purpose, receivers should detect and analyze users′ situations by estimating the tracking state. Based on the analysis of traditional receiver control systems′ drawbacks, the conception, characteristic and framework of the intelligent receiver was introduced. Furthermore, the intelligent tracking state estimator was designed and analyzed. Finally, simulation results show the new methods can effectively identify the complex and changeable scenes.