一种北斗卫星定位导航装置RS103测试优化方法研究

摘要

At present,with the great development of BeiDou Navigation Satellite system,BeiDou Navigation Satellite devices which are the receiving terminals of the system are getting more and more application,such as military affair,trans-portation,atmosphere,ocean,and disaster forecasting.Because of the devices should always working in the complex elec-tromagnetic environment,the radiation radio sensitivity is very important for the devices.Currently,domestic EMC testing laboratories face on a difficulty on RS103 test in 2-4 GHz testing that the interfere produced by power amplifier goes into the working band of the devices,thus,the device can’t locate before test.Provide a method to solving the problem on base of the facticity and integrity of the test by corresponding design and confirmation.%随着北斗卫星定位导航系统的快速发展，其接收终端———北斗定位导航装置也在军事、交通运输、气象、海洋、森林防火、灾害预报和公安等诸多领域得到越来越广泛的应用。针对在国内电磁兼容试验室进行RS103项目2～4 GHz频段测试时，由于测试系统功率放大器产生的宽带干扰落入北斗卫星定位导航装置的工作频带内，造成其在尚未施加干扰时就已无法定位，导致试验难以开展，进行了相应的设计及验证。通过采取卫星信号转发器与定频衰减器相结合的方式，在保证试验真实性和完整性的前提下，解决了RS103项目在2～4 GHz频段测试时由于测试系统所带来的带内干扰问题。