用于3g手机的带宽可能会进一步受到某些区域手机发射塔带宽的限制。
Bandwidth for 3g cellular may further be limited by cell tower bandwidth in some areas.
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.
在这些情况下，可向开关加入滤波器来改变信号的频率带宽，或者从发射到DUT的信号中消除有害频率的杂散信号。
In these cases, filters can be added to the switch to modify the signal frequency bandwidth, or spurious signals at unwanted fre quencies can be eliminated from the signal to the DUT.
需要研究更加有效的无线资源分配及管理策略，以便在有限的带宽上达到更高频谱效率、更高的发射功率利用率以及更好的系统性能。
A more efficient radio resource allocation and management scheme should be proved to transmit with higher spectrum and power efficiency and higher system performance.
数值模拟结果表明：当自发发射因子较大时，对于不同的有源区体积，电流调制带宽显著不同。
The numerical simulation results show that the modulation bandwidths is obviously different by varying the active volume at an high spontaneous emission coupling ratio.
线性调频雷达的极限分辨力取决于发射波形的带宽。
The limit of the range resolution of a LFM radar depends on the bandwidth of transmitted waveform.
授权带宽智能传输和接收所需的带宽。该定义不包括允许发射机漂移或多普勒漂移。
Authorized bandwidth The necessary bandwidth required for transmission and reception of intelligence. This definition does not include allowance for transmitter drift or Doppler shift.
三种不同结构的碳纳米管在费米能的增幅上有些差异，带宽减小的程度也是不同的，一端封闭的碳纳米管在F掺杂后费米能的增幅最大，说明在制备场发射电极时选择一端封闭的碳纳米管更加有利。
Difference in extent of the Fermi energy and decrease of band-gap energy for three kinds of CNTs show that CNT with one end open is favorable for the preparation of field emission electrode.
RS92的发射机占用带宽大约是RS80的十分之一。
为了达到这一目的，最常见的做法是提高发射信号的带宽，但是超宽带信号的产生和处理会带来很大的硬件压力。
Improving bandwidth is the most usual approach to achieve the goal, but this method often brings more difficults to the accomplishment in hardware.
该文研究机载火控雷达对慢速目标的检测方法以及发射信号带宽对慢速目标的检测性能的影响。
In this paper, slowly moving target detection for airborne fire-control radar and the effect of transmitting bandwidth are discussed.
典型的超宽带雷达系统发射的是冲激脉冲信号，具有很大的带宽，但限制了系统的作用距离。
A typical Ultra Wideband Radar system emits impulse signal, which has wide band, but limited operating range.
在不额外增加发射功率和带宽消耗的情况下，注水功率分配算法能够获得最大的多输入多输出（MI-MO）系统容量。
The water-filling power allocation algorithm can achieve the maximal capacity of multiple-input multiple-output(MIMO) systems with no additional power and bandwidth consumption.
为了抑制宽带干扰信号，在发射方向图上形成干扰凹口，提出了一种宽带宽角发射波束形成新方法。
In order to suppress wideband interference and make pattern null in the direction of interference, a new wideband transmitting beamforming method for a large scanning Angle is presented.
功率分析仪提供了功率和发射频率的信息，也可以克服由于功率计有限视频带宽而引起的的错误读数。
An RF power analyzer provides both power and transmission frequency information, and can also overcome false readings associated with an RF power meters limited video bandwidth.
这些需求根据信道带宽和发射频率改变，控制允许发送的频谱。
These requirements govern the allowed spectrum of a transmission and vary according to the bandwidth of the channel and the frequency of transmission.
雷达的距离分辨率与发射信号的带宽成反比，要获得大的距离分辨率，必须发射宽带雷达信号。
Radar range resolution is influenced by its bandwidth, in order to obtain high range resolution, radar must emit wideband waveform.
他们还增加了瞬时带宽可用于发射器，它可以让运营商提供采用了4.5G蜂窝网络中指定的数据聚合技术更高的日期。
They also have increased instantaneous bandwidth available for transmitters, which lets a carrier offer higher dates using the data aggregation technique specified for 4.5g cellular networks.
为避免过量的传输失真，发射机与接收机之间的带宽至少要两倍于数字载波调制的带宽。
To avoid excessive transmission distortion, the bandwidth between transmitter and receiver must be at least twice that with digital carrier modulation.
这种效应对于发光二极管来说是特别重要的，因为发光二极管所发射的光谱带宽可达几百埃。
This effect is particularly important for leds since the emitted spectral width is several hundred angstroms .
从理论和实验上研究了长周期光纤光栅用于掺铒光纤放大器自发发射谱增益平坦展宽的特性、自增益谱的荧光峰和可用带宽。
In this paper, the properties of ASE gain flattened of EDFA are studied based on energy level and particle number shifting of EDFA both theoretically and experimentally.
这种效应对于发光二极体来说是特别重要的，因为发光二极体所发射的光谱带宽可达几百埃。
This effect is particularly important for leds since the emitted spectral width is several hundred angstroms.
实验表明，太赫兹时域发射光谱和频谱在外加电场、磁场作用下都有增强，但是所发射的频率成分和带宽都没有改变。
The results show that THz emission spectra are enhanced by the applied electrical and magnetic field, while their frequency components and bandwidths are not changed.
利用可调谐激光器与元素光谱灯，根据光谱带宽内的发射谱线所对应的波长，以及探测器尺寸与系统带宽之间的关系，设计了光谱定标方案。
According to emission lines and the relation between detector size and system bandwidth, we designed the spectral calibration plan for SHS, which uses tunable laser and halogen lamp.
这种信道化发射机能同时发射整个处理带宽内所有信道上的信号，具有很高的运算效率，且结构简单，可行性强。
This transmitter can simultaneously emit all signals in the whole bandwidth, having high operating efficiency, simple structure and strong feasibility.
为了抑制宽带干扰信号，在发射方向图上形成干扰凹口，提出了一种宽带宽角发射波束形成新方法。
But, as deeply into the study and the increase need of the practical application, broadband interference suppression become the new focus on that direction.
为了抑制宽带干扰信号，在发射方向图上形成干扰凹口，提出了一种宽带宽角发射波束形成新方法。
But, as deeply into the study and the increase need of the practical application, broadband interference suppression become the new focus on that direction.
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