无线资源管理是低轨卫星通信系统中的一个重要的研究方面。
An important aspect of LEO satellite communication system is to manage the radio resources.
研究了用于低轨卫星通信的直接序列扩频系统的码捕获技术。
It is studied that the code acquisition technology of direct sequence spread spectrum system in LEO satellite communication.
本文通过对比地面移动通信系统和低轨卫星移动通信系统，为低轨卫星通信系统设计了一种呼叫接入控制策略。
This paper compares the ground mobile communication system and LEO satellite mobile communication system, then designs a CAC for LEO satellite communication system.
CDMA作为一种抗噪声强、带宽分配灵活，保密性强的传输接入方式被广泛的应用于民用、军用低轨卫星通信系统中。
CDMA technology is widely used in LEO satellites communication because of many merits offered by CDMA system such as suppression of ingress noise, flexibility of bandwidth assignment and the security.
相对于一般的通信系统而言，低轨卫星通信系统具有信号动态范围大，多普勒频移大且变化速度快，信道起伏剧烈等特点。
LEO satellite communication system has the properties of larger power dynamic range, larger and faster changed doppler frequency shift and rapid fluctuation compared to ordinary communication system.
本文介绍全球星低轨移动卫星通信系统的设计思想、技术体系和终端设备以及目前的实施情况。
The design principles, technical terminal equipment and the implementation of the LEO satellite - based mobile communications system are described in this article.
阐述了卫星通信的概况以及卫星移动通信系统的分类，重点介绍了低轨卫星移动通信系统的组成及其关键技术。
The satellite mobile communication system, which is the emphasis of the academic research, is the most significant portion of the 3G communication system.
阐述了卫星通信的概况以及卫星移动通信系统的分类，重点介绍了低轨卫星移动通信系统的组成及其关键技术。
The satellite mobile communication system, which is the emphasis of the academic research, is the most significant portion of the 3G communication system.
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