The BD receiver can measure the pseudo distance between the satellite and the user, so that it can work in the passive positioning system.
目前已经能够研制出测量用户至卫星伪距信号的“北斗”用户接收机，此款接收机可以工作在无源定位的情况下。
In order to satisfy the need of "BD-1" system & GPS combined receiver for special environment, a combined receiver antenna has been designed.
针对“北斗一号”（“BD-1”）系统与GPS系统组合接收机在特定电磁环境下的需求，设计了一种组合接收机天线。
This paper designs and implements key technology of high dynamic GPS/BD-2 receiver and the verification platform, with main researches on PLL and rapid acquisition.
本文研究了高动态GPS／BD-2软件接收机关键技术并设计实现了其验证平台，其中研究的重点是锁相环及快速捕获方法。
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