数字移动通信

CDMA数字移动通信网中引入直放站时需要考虑的问题

Issues Needing Consideration while Introducing Repeater in CDMA Digital Mobile Communications Network

TDMA和CDMA方式是当前数字移动通信中的两大主流。

TDMA and CDMA are the two main subjects in digital mobile communications .

TDMA数字移动通信系统中MVA均衡器

An MVA Equalizer for TDMA Digital Mobile Radio

高效调制MQAM数字移动通信系统的性能分析：（Ⅰ）系统模型

Performance Analysis of MQAM Digital Mobile Communication Systems : (ⅰ) System Model

目前，数字移动通信系统的两大主流是窄带的TDMA和宽带的CDMA，人们正在对CDMA进行热烈的讨论和进一步的研究。

At present , there are two trends in digital mobile communication , narrowband TDMA and broadband CDMA , and CDMA is under fiery discussion and further research .

本文探讨了未来移动通信技术的发展趋势和特点，涉及CDMA数字移动通信系统，FLEXTM无线寻呼技术和个人通信系统PCS。

This paper probe into mobile communication technology developmental trends and characteristic , involve CDMA digital communication system , FLEXTM and PCS.

模拟前端的高速信号采样是软件无线电技术的基础，同时宽带高速速率的传输要求使得OFDM技术成为新一代数字移动通信的核心技术。

One foundation of SDR is high-speed signal sampling in analog front end . Also the demand of broadband high-speed transmission makes OFDM a core technology for new generation digital mobile communication systems .

针对CDMA数字移动通信网中直放站系统的引入对系统产生的影响从理论上进行了阐述，并对无线网络设计中需要考虑的有关问题进行了详细的探讨。

From the aspects of theory , it expounds effects of introducing repeater system to CDMA digital mobile communications network , discusses issues in detail , which need consideration in wireless network design .

CDMA扩频通信系统具有许多优点，作为一种新型通信方式，CDMA技术已成为目前数字移动通信及未来个人通信研究中的一个重要内容。

CDMA spread spectrum communication system has many advantages . Being a new type of communication , CDMA techniques have become an important content of data mobile communication research and private communication research .

针对中国数字移动通信系统的发展现状及发展趋势，对目前新出现的GPRS信息系统作了简要的介绍。

Some concepts and foreground about GPRS system which is a new technology are introduced . The introduction is aimed at the present situation and tendency of the China 's mobile communication system .

数字移动通信信令网SCCP寻址

Digital Mobile Communication Signaling Network SCCP Addressing

CDMA技术是近年在数字移动通信发展过程中被提出来的一种无线扩频通信技术，CDMA系统具有保密性好、抗干扰强、通话质量好、频带利用率高等特点。

CDMA is a wireless spread spectrum communication technology with the development of digital mobile communication in recent years . CDMA system has good secrecy , good communication quality , high usage of frequency and is strongly anti-jamming .

基于数字移动通信的发展趋势，第三代移动通信系统3G是当前最有前途、最具竞争力的技术，因而介绍了它的组成、技术标准及发展简况。

Based on the developing trend of digital mobile telecommunication , the 3G mobile telecommunication is considered as the most promising and competitive technology , therefore its composition , technical criterion and developing trend are introduced in this paper .

本课题的任务是为采用CDMA技术的数字移动通信系统设计一个应用于基站控制器（BSC）内部的高速数据交换网络。

The task of this research is to design a high speed data switch network which is used in a base station controller ( BSC ) of a digital mobile communication system based on CDMA technique .

第二章从数字移动通信系统中常用的调制解调方式出发，比较了实现GMSK调制的几种方法，提出了波形存储正交调制实现GMSK调制的基本原理。

In chapter 2 , the principle of GMSK modulation is given in detail based on the discussion of various digital modulation techniques used in mobile communications .

当今，移动通信正处于向第四代通信系统发展的阶段，OFDM技术作为第四代数字移动通信（4G）系统的关键技术之一，被包括LTE在内的众多准4G协议所采用。

Mobile communication is developing to the fourth-generation communication system today , and as the key technology of the fourth-generation digital mobile communication ( 4G ) system , OFDM is adopted by many quasi-4G protocol , including LTE .

8Kb/s脉冲自适应码本激励（PACELP）-一种新的数字移动通信用语音编码方案

Pulse Adaptive Coode-excitation ( PACELP ) - A New Speech Coding Scheme for Digital Mobile

本文介绍数字移动通信系统基站（BTS）壳体辐射发射测试的方法和此方法与EN、CISPR中规定的辐射发射（RE）测试方法的区别，以及基站壳体辐射发射测试对硬件的特殊要求。

This paper introduces the testing methods of spurious emissions for BTS , different points between these methods and radiated emission testing methods in EN 、 CISPR . Finally , special hardware requirements are given for spurious emission .

本文导出了一种较完备的高效调制MQAM数字移动通信系统的基带等效模型。所考虑的移动通信系统中包含频率选择性多径瑞利衰落信道、同频道干扰、邻频道干扰和加性高斯白噪声。

A relative complete baseband equivalent model for MQAM digital mobile communication system is described in this paper , which includes frequency selective Rayleigh fading channel , co-channel interferences , adjacent channel interferences and additive white Gaussian noises .

数字移动通信中的抗多径衰落技术

Anti - multipath - fading Techniques in Digital Mobile Communications Systems

数字移动通信发展现状

The State-of-the-Art of Digital Cellular Public Land Mobile Telecommunication Systems Developments

数字移动通信解调的同步设计理论

Synchronization Design Theory of Demodulation for Digital Land Mobile Radio System

矿井数字移动通信新型帧同步保护方案

New method of frame-sync protection for mine digital mobile communication system

一种运用于数字移动通信的谐波抑制功放模块

A Power Amplifier Module with Harmonics Suppression for Digital Mobile Communication

π/4-DQPSK调制及其在数字移动通信中的应用

π / 4-DQPSK Modulation and Its Application to Digital Mobile Radio Systems

数字移动通信系统中越区切换的计算机模拟

Computer Simulation of Handoff in the Digital Mobile Communication System

数字移动通信系统网络规划设计的研究

Study on Network Planning and Design of GSM Digital Mobile Communication System

数字移动通信传播特性预测及信道模型的研究

Propagation Characteristic Prediction and Channel Models for Digital Mobile Communications

数字移动通信技术及手机的发展现状

Current Status of Digital Mobile Communication Technology and Cellular Phone

一种典型的数字移动通信信道模型在语音编码中的应用

A Typical Channel Model of Digital Mobile Communication Applied in Speech Coding