AIS的信息传输采用自组织时分多址技术。
AIS information is transmitted with the technique of Self-Organized Time Division Multiple Access (SOTDMA).
空分多址技术在未来的民用或军用移动通信系统中具有很大的应用潜力。
The SDMA technique has great potential to be applied in the future civilian or military mobile communication system.
此外,介绍了自编码技术在跳频、跳时系统中的应用和自编码多址技术。
We also introduce the application of SESS in hopping frequency, hopping time communication system and multiple access system, etc.
本文将MB-OFDM超宽带系统及其关键技术之一多址技术作为研究重点。
This article emphasises on researches on the MB-OFDM ultra-wide band system and multiple access technology.
采用CDMA多址技术的宽带无线ATM通信网是第三代无线通信网的研究热点之一。
The Broad wireless ATM communication network , in which CDMA multiple-access technique is adopted , becomes a most favorable focus among the 3rd generation wireless communication network .
本文介绍了无源光网络(PON)的基本概念、功能、结构以及其多路复用与多址技术。
The concept, function and architecture of passive optical network (PON) are presented in this paper. The multiplexing and multiaccess transmission technologies for PON are also described.
基于时分多址技术,提出了一种改进的动态带宽分配算法,结合了轮询机制和申请的优先级。
Based on TMDA technology, a modified dynamic bandwidth allocation algorithm, which integrates Polling scheme and requesting priority, is proposed.
随着人们对通信需求的不断增长,带来了如何有效地利用频率问题,同时也产生了越来越多的多址技术。
With the increased need for communications come a need for the efficient use of tile frequency spectrum and the more multiple access technique.
CDMA蜂窝移动通信系统是一种采用多址技术的通信系统,即采用不同的地址码来区分用户、基站和信道。
CDMA mobile communication system adopts multiple access techniques which means different address codes are used to distinguish users, base stations and channels.
具有码分,频分和时分多址组成部分的无线通信系统,尤其是具有混合多址技术的“联合检测码分多址通信系统。”
Wireless telecommunications system with CDMA, FDMA and TDMA multiple access component, especially 'JD-CDMD' telecommunications system with hybrid multiple access techniques.
为解决机会式空分多址系统在稀疏用户网络中容量低的问题,提出了基于部分随机波束选择的机会式空分多址技术。
A partial random opportunistic SDMA with beam selection (POSDMA -s) method is proposed to enhance the capacity of opportunistic SDMA (OSDMA) system in sparse network.
该SNEP将采用MPM1000网络中心波形卫星调制解调器,为战术机动作战提供所需的多频时分多址接入带宽技术。
The SNEP will employ the MPM1000 Net Centric Waveform Satellite Modem to provide Multi-Frequency-Time Division Multiple Access Bandwidth on demand technology for tactical mobile operations.
第3章对AIS系统的关键技术自组织时分多址(SOTDMA)及其工作流程进行了较为深入的研究。
The 3rd chapter conducted more thorough research to the AIS system essential technology (SOTDMA) and its the work flow from the organization.
数值结果表明,由于使用多用户联合检测技术抑制多址干扰,随着激活用户数的增加,小区的有效覆盖范围几乎保持不变;
Results show that cell coverage almost remains constant as the number of active users in the cell increases due to the usage of joint detection technology to suppress multiple access interference.
智能天线和干扰消除技术是从不同角度抑制码分多址系统多址干扰的方法,二者各有其特点及不足之处。
Smart antennas and interference cancellation are two different kinds of schemes to restrain multi-access interference, and each has its characteristic and defect.
文章首先详细介绍了接入系统的基本原理和关键技术,包括调制技术、差错控制技术、多址接入技术、嵌入式系统技术。
Firstly, the basic principles and the key techniques of access system is introduced, which includes modulation, error control, multi-address access, and embedded-system techniques.
传统的CDMA技术存在严重的多址干扰现象,使得信道的频谱效率不能达到最佳状态。
The traditional CDMA technology has serious multi address interference phenomenon, so the frequency spectrum efficiency of the channel can′t reach the optimal state.
多址接入技术是WLAN的关键技术之一。
The multiple access technology is one of the pivotal technologies of WLAN.
媒体接入控制技术的核心问题是如何协调多个用户共用一个信道实现高效可靠传输,即多址接入问题。
The medium access control Technology focuses on multi-address access, that is, how to coordinate users sharing a common channel to achieve efficient and reliable transmission.
目前,在分布式无线网络中使用的多址协议大多是基于带冲突避免和冲突分解的随机多址接入技术。
Nowadays, most multiple access methods in the distributed wireless networks are based on the random multiple access with collision avoidance and collision resolution.
另一方面,利用智能天线和用户空间位置信息可以实现空分多址(SDMA)接入技术。
On the other hand, utilizing the smart antenna and the users' spatial information, we can develop the Space Division Multiple Access (SDMA) technology.
本文对照频分多址和时分多址系统的频谱效率,阐述了码分多址系统提高系统容量的几项关键技术。
The author has described several key techniques for improving the capacity of CDMA digital celullar system, comparing to the spectral efficiency of FDMA and TDMA cellular system.
利用多用户检测技术可以抑制多址干扰,从而提高CDMA系统的容量和性能。
Multi-user detection technique can cancel multi-access interference, so it can enhance the capacity and performance of CDMA system.
BWS同时也依靠多址接入技术来对多用户传输的不同媒体信息进行区分。
BWS also relies on the multiple access technique to divide the common transmission medium among multiple users.
调制方式和多址接入的灵活性是正交频分复用(OFDM)技术的一大优点。
One of the advantages of OFDM is the flexibility concerning modulation and multiple access techniques.
近年来,正交频分多址接入系统做为一种新的多址接入技术受到了极大关注。
Recently, Orthogonal Frequency Division multiple access (OFDMA) as a new multiple access technology has received a lot of attention.
多用户检测技术是码分多址系统中解决多址干扰的关键技术。
The multi-user detection is a key technique to solve the problem of MAI existing in DS-CDMA system.
功率控制技术是CD MA系统克服“远—近效应”,降低多址干扰、增大系统容量的一项关键技术。
Power control is a key technique in CDMA cellular mobile communication systems. It can combat near far effect, reduce multiple access interference and improve the system capacity.
时分多址:一种数字无线电话传输技术。
Time Division Multiple Access: a digital wireless telephony transmission technique.
接着简述无线定位的几种常用技术,并分别说明时分多址和码分多址两类蜂窝网所用无线定位技术的情况。
Then, it briefly mentions the current technologies used for the wireless location including methods used by TDMA and CDMA cellular networks.
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