中文摘要：

为解决星载GNSS接收机具备高动态信号的跟踪与锁定功能,基于自行研发的星载GPS导航接收机,通过软件升级使其能够工作在LEO、GEO和更高轨道高度上,实现更快的信号捕获能力和对微弱信号的跟踪能力。文中给出了接收机的软硬件架构及功能描述,以及低轨道高动态条件下的模拟器测试结果,通过测试表明,文中给出的接收机具有高动态、微弱GNSS信号的捕获跟踪性能,具备星载搭载条件。

英文摘要：

With high dynamic signal tracking and locking function to solve the spaceborne GNSS receiver, the design of a self - developed satellite navigation receiver GPS, through a software upgrade to allow it to work in LEO, GEO and higher orbit, achieve faster signal capture capability and weak signal tracking ability. This paper intro- duced the design and test of spaceborne GPS receiver. The receiver hardware and software architecture and the func- tional description is provided, and finally gives the simulation test results under the condition of high dynamic low earth orbit. Through the test showed that the promising performance of weak GNSS signal acquisition ＆ tracking under dynamic conditions which is suitable for space use.