And finally, the paper discusses simply the positioning principle of the two-satellite positioning and communication systems.
最后，简单介绍了双星定位及通信系统的定位原理。
参考来源 - 一种适于卫星定位与通信系统的扩频ALOHA信道模型In this system, the PN codes acquisition and tracking , carrier wave's frequency and phase tracking are critical. This paper investigated several key problems of the implementation of two-satellite positioning digital de-spreading receiver with field-programmable gate array (FPGA).
双星定位系统中,扩频信号的捕获与跟踪、载波频率与相位的跟踪是关键。
参考来源 - 双星定位解扩接收机·2,447,543篇论文数据，部分数据来源于NoteExpress
This paper investigated several key problems of the implementation of two-satellite positioning digital de-spreading receiver with field-programmable gate array (FPGA).
本文对用FPGA实现双星定位数字解扩接收机中的几项关键技术做了深入研究。
"Beidou" double satellite positioning system, adopting two geosynchronous satellites to position, has the characteristic of high precision in positioning and active positioning mechanism.
北斗双星定位系统(简称双星定位)利用两颗地球同步卫星进行定位，具有定位精度高、采用有源定位体制的特点。
In the paper, the constitution of two-satellite fast positioning system is briefly described as well as the principle and function of the system. Theexperimental results in demonstration are given.
本文扼要地介绍了双星快速定位系统的组成、功能、工作原理以及双星定位演示系统及演示试验的概况。
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