提出了一种新型的用于超宽带系统的高斯脉冲发生器。
A new ultra wideband (UWB), low-complexity and step recovery diode Gaussian pulse generator is introduced.
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.
2007年10月发射了首颗卫星宽带系统，提高了高带宽的通信能力，支持美国军事行动。
The wideband system, with its first satellite launched in October 2007, increases the high-bandwidth communications capacity available to support U.S. military operations worldwide.
平面单极性天线可用来提供很高的的阻抗带宽特性，应用于目前或将来的宽带系统中。
The planar monopole antenna provides extremely high width impedance characteristics which has been proposed for modern and future wideband wireless applications.
本文在讨论相控阵多普勒计程仪原理的基础上，提出了相控接收和宽带系统移相的方案。
From the array theory, a phased receiving and wide-band phase-shift scheme for this kind of Doppler log is proposed in this paper.
与基带uwb无线电相比，多带OFDM超宽带系统在短距离无线通信中得到了广泛的认可。
Compared to baseband UWB radios, the MultiBand OFDM ultra-wide band system has obtained widespread approval in short-range wireless links.
该产品的转换速率最高可达200MSPS，具有杰出的动态性能，适合宽带载波和宽带系统使用。
The product operates up to a 200 MSPS conversion rate and is optimized for outstanding dynamic performance in wideband carrier and broadband systems.
窄带系统中使用的波束形成技术对于宽带系统来说是不合适的，因为他们会导致主瓣偏斜和零陷偏移。
The beamforming techniques used in narrowband systems are inadequate for wideband systems because they result in main-beam squinting and null shifting.
超宽带系统由于其低功耗、低截获率和抗多径衰落效益好等特点，特别适合应用在短距离无线通信领域中。
The UWB system specially applies in short distance wireless communication because of its characteristics such as lower power and anti-multi-path decline ability.
基于这种背景，本文提出了一种应用于超宽带系统的高性能（低压、高线性度、高变频增益）直接下变频混频器，采用标准的CMOS工艺设计和实现。
To solve these problems, this paper presents a high performance, namely low voltage, high linearity and high conversion gain, CMOS direct down conversion mixer for UWB (Ultra Wide Band) system.
首先分析了超宽带技术与传统的直接序列扩频技术的区别，然后建立了TH -IR和DS - IR超宽带系统的仿真模型，得到两种IR系统在多种干扰条件下的误码率性能。
The difference between UWB and the traditional direct sequence spread spectrum technology was analyzed, and the simulation models of TH-IR and DS-IR systems were installed.
Montpetit想联结不同的通信系统（尤其是移动和宽带服务）创造一个优质的用户体验。
Montpetit wants to unite different communication systems--especially cellular and broadband services--to create an elegant user experience.
正处于开发阶段的这一系统将会以比现在的“高速”宽带因特网连接快1000倍的速度传送数据。
Such a system, now under development, will shunt data a thousand times faster than current "high speed" broadband Internet links.
宽带放大器是现代通信系统中的一种重要的放大器类型。
The broadband amplifier is an important type of amplifiers using in modern communication systems.
宽带网络认证计费管理系统可以改变单一计费模式和教育有效管理不断增长的各类用户。
Broadband network charge and authentication system can change single charging mode and effectively manage all kinds of users that increase constantly.
“这促使苹果和它的应用生态系统，还有交互活动去证明无处不在的宽带需求是被压抑的”，Vellody说。
"It took Apple and its ecosystem of apps and interactivity to prove the pent-up demand for ubiquitous broadband," Vellody says.
第四部分是基于卫星宽带远程环境对学习服务支持系统具体的构建思考。
Part four explores the construction of the Learning Support Services System based on the environment of Satellite Broad Band.
实时定位系统 (RTLS)使用无线技术（比如Wi-Fi、超宽带、RFID、蓝牙和 GPS）来实时识别并跟踪生产资源或人员的位置。
Real time locating systems (RTLS) use wireless technologies such as Wi-Fi, ultra-wideband, RFID, Bluetooth, and GPS to identify and track the location of items or people in real time.
另外在未来宽带MIMO无线通信系统中，通常面临频率选择性衰落信道，传统高性能均衡器就会变得异常复杂。
In addition, there will be frequency selective fading in the future broadband MIMO wireless communication systems, and the traditional high-performance equalizer will become extremely complicated.
从节点设备和通道建设等方面讨论了如何组建经济、适用的电力系统宽带数字通信网。
How to construct an economic and prompt broadband digital communication network in power system is discussed in the paper.
4g系统提供移动宽带互联网接入，例如与usb无线调制解调器，笔记本电脑，智能手机和其他移动设备。
A 4g system provides mobile ultra-broadband Internet access, for example to laptops with USB wireless modems, to smartphones, and to other mobile devices.
宽带用户环路系统将为可视电话、视频娱乐节目等业务提供通路。
The wideband subscriber loop system provides access to services such as picturephone, video entertainment.
索尼公司正在探索“网格”系统，用宽带将成千上万台家庭计算机、游戏操作台连成网络。
Sony Corp. is pursuing " grid " systems, using broadband to connect thousands of home computers and game consoles.
每秒传输30幅图象画面的电视系统，它必须工作于宽带电磁波谱。
Television systems, which transmit 30 picture frames per second, must operate on a broad electromagnetic spectrum.
该系统适用于对高速、宽带的瞬态信号进行数字化处理。
Such system is used to digitize high - speed, wide band signal.
提出一种新3g宽带移动互联网系统。
New 3g broadband mobile wireless Internet has been proposed.
同轴电缆-一种应用在宽带数据和有线电视系统中的电缆，它具有非常优良的宽带频率特性，能消除杂音且有物理耐久性。
Coaxial cable - a type of cable used for broadband data and cable systems, with excellent broadband frequency characteristics, noise immunity and physical durability.
本地多点分配接入系统是宽带无线接入系统的代表。
Local Multipoint Distribution access system is representative of broadband wireless access systems.
这些宽带用户环路系统将为可视电话、视频娱乐节目等业务提供通路。
These wideband subscriber loop systems would provide access to services such as picturephone and video entertainment.
这些宽带用户环路系统将为可视电话、视频娱乐节目等业务提供通路。
These wideband subscriber loop systems would provide access to services such as picturephone and video entertainment.
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