基于模拟器的辅助导航测试方法研究

随着卫星导航产业的迅猛发展，辅助导航技术得到越来越广泛的应用，利用该技术可提高导航终端对卫星导航信号的捕获概率，缩短首次定位时间，提高灵敏度，提升用户体验。基于导航信号模拟器，利用基准站接收机传送辅助数据（星历信息及时间信息）的方式，构建辅助导航测试系统，提出了一种新的辅助导航测试方法，对导航芯片利用辅助信息实现快速捕获和定位性能进行了充分验证，方法可行，具有一定的工程应用价值。

Research on Assisted Navigation Test Method Based on Simulator

With the rapid development of the satellite navigation industry, assisted navigation technology is getting more and more widely used. This technology can improve the capture probability of the navigation terminal to the satellite navigation signal, shorten the first positioning time, improve the sensitivity, and improve the user experience. It builds an assisted navigation test system based on the navigation signal simulator and the method of transmitting auxiliary data (ephemeris information and time information) by the base receiver. A new assisted navigation test method is proposed, which fully verifies the navigation chip's use of auxiliary information to achieve fast capture and positioning performance. This method is feasible and has some value in engineering application.