北斗/GNSS高精度时频终端测试方法探讨

基于虚拟仪器技术、网络技术和批量化测量技术，探讨北斗/GNSS高精度时频应用终端的测试手段；提出应用测试模块化和VXI/PXI/LXI总线技术的测试设计方案，该方案具有多路标准时间频率参考信号一致性设计和网络远程测试校准设计；同时，提出北斗/GNSS高精度时频终端测试校准系统的结构设计及其应用模式。这将能有效提高北斗/GNSS时频终端测试的集成化和智能化水平。

Study on the Testing Method of Precise Time and Frequency for COMPASS/GNSS User Terminals

It has been discussed this paper that the testing and calibrating means on precise time and frequency for the user terminals of COMPASS / GNSS navigation system, based on Virtual Instrument technology, on network technology and on batch measurement technology. It is put forward that the testing method based on modulization and on VXI / PXI / LXI bus technology, with the consistency design of standard time and frequency reference signals and the design of remote testing and calibrating based on network technology. At the same time, it is proposed that the structure design and it’s application of COMPASS / GNSS precise time and frequency testing and calibrating system. This way can upgrade the measuring level of COMPASS / GNSS time and frequency terminals with integration and intelligence.