Andrea Goldsmith: There's not enough spectrum to assign every phone in the world its own dedicated channel so we have to reuse the channels and that causes interference between users.
安德里亚·戈德史密斯：由于频谱资源有限，我们很难让每个用户享有特定的频段，只能不断地将它们回收利用，导致用户之间出现通信干扰。
White space is industry lingo for the unused airwaves that abut TV spectrum and provide a buffer from stray signals and other interference.
whitespace是行业术语，指的是毗连电视频段的未使用的波段，它还可以为收到的杂散信号和其他干扰提供缓冲。
Conducted spectrum of switched power sources, a typical interference source, is analyzed in this paper, and the design techniques have been introduced to minimize conducted interference.
本文对典型的干扰源—开关电源的传导发射频谱进行了分析，并介绍了降低传导干扰的设计方法。
The accuracy of traditional spectrum analysis for the diagnosis of reciprocating pump valve is not satisfied for the interference of the noise and the vibration of the adjacent parts.
往复泵泵阀振动信号的常规频谱分析，由于故障特征信息往往被淹没于强大的噪声以及相邻部件的干扰而使诊断精度大打折扣。
The rejection techniques of broadband interference have caused more and more attention in Spread Spectrum(SS) communication systems.
扩频通信系统中宽带干扰的抑制技术越来越引起人们的重视。
The assignments of frequencies by the FCC for various communications USES to achieve a fair division of the available spectrum and to minimize interference among users.
联邦通信委员会(fcc)为各种通信应用分配频率，以达到合理的频谱分割并使用户间的干扰减至最小。
The wide angle spectrum characteristic of polarization interference filter (PIF) is key to the design and manufacture.
偏振干涉滤光片宽角度光谱特性是设计研制中的关键。
Using a simplified model of light interference, we discussed the physical essence of the spatial coherence demand on a photon correlation spectrum measurement system in dynamic light scattering.
利用光干涉的简化模型讨论了动态光散射中光子相关谱测量系统的空间相干性要求的物理本质。
The effect of bandwidth division on the improvement of the frequency spectrum utilization is analyzed under the condition of the multi-access interference and Gaussian white noise.
分析了在信道存在加性白噪声和多址干扰的条件下，频带细化对提高频谱利用率的作用。
An adaptive method applying eigenvalue decomposition-based spectrum analysis technique to narrow-band digital communication interference suppression in radar is proposed and studied.
基于特征分解谱分析技术，提出并研究了在雷达中自适应抑制窄带数字通信信号干扰的方法。
The correction method of combination of artificial parent matching and the correction factors of spectrum interference were adopted in this paper.
本文采用人工基体匹配与光谱干扰校正因子相结合的校正方法。
A theory analysis is made for a phenomenon of "line group" which is bell shaped, and the spectrum interference between direct path sound and reflected sound is revealed.
从理论上分析了钟型的“线谱群”的产生原因，证明了此现象是反射声和直达声之间的谱干涉引起的。
The performance of Direct Sequence Spread Spectrum(DSSS) in severe pulsed noise interference will be badly degraded when the duty factor is small.
当脉冲干扰占空比较小时，干扰能量集中，导致直接序列扩频（DSSS）系统的误码性能较差。
There are interference peaks in the absorption spectrum of the cell.
电池吸收谱中存在干涉峰。
Due to its high spectrum utilization and good capability of preventing muti - path interference, OFDM is regarded as the core technology in Beyond 3g mobile communication system.
OFDM技术以其高的频谱利用率和良好的抗多径干扰能力，被看作是3G以后移动通信的主流技术。
Dynamic spectrum allocation optimizes the allocation of uncertain spectrum for binary interference model and accumulative interference model.
动态频谱分配针对二进制干扰模型和累积干扰模型进行不确定频谱资源的优化分配。
The main interference period of each station can be identified in the spectrum analysis of main interference and some measures for descending interference in stations have been taken.
由主要干扰的频谱分析，可以判断各台的主要干扰周期，并采取相应措施以降低台站干扰。
A new modulated lapped biorthogonal transform (MLBT) was introduced for narrowband interference suppression in spread spectrum communications.
引入一种新的调制重叠双正交变换(MLBT)用于扩频通信窄带干扰抑制。
This optimizes the use of available radio-frequency (rf) spectrum while minimizing interference to other use.
这个优化使用可用的射频(RF)光谱同时最小化干扰到其他使用。
An algorithm for the suppression of narrowband interference in the direct sequence spread-spectrum (DSSS) systems is presented.
提出了直接序列扩频通信系统中抑制窄带干扰的一种算法。
What this paper tells of, analyzes and summarizes is some common detection model and spectrum estimation algorithm based on the interference temperature.
文章介绍了常用的基于干扰温度的探测模型以及频谱估计算法，进行了分析与总结，并且提出了目前频谱探测技术的不足之处。
Through the spectrum sensing and cognitive engine technology, the characteristics of narrowband interference signal is extracted, which is the rule to design the trap filter.
通过频谱感知和认知引擎技术提取窄带干扰频谱特征作为陷波器的设计依据。
The Performance of CDMA approaches that of WDM, but it also faces some problems such as spectrum interference from multiple users and shot noise etc.
通常CDMA系统接近波分复用的性能，但是也面临一些有待解决的问题，例如多用户时的谱干扰、散弹噪声等。
Finally, the simulation shows that the proposed algorithm can reduce the interference temperature estimation valuation and improve spectrum efficiency under the directed communication conditions.
通过仿真验证了所提算法在有向通信背景下可以降低干扰温度估值，提高频谱使用效率。
Amplifier distortion produces a dilation of the spectrum of the input signal (" spectral regrowth ") which causes interference to communications in adjacent channels.
放大器失真引起输入信号的频谱再生，这对相邻信道中的通信产生了干扰。
However, the non-mass spectrum interference, enhancement effects of organic reagent and quantitative calibration technique of solid microanalysis are "hot" topic in ICP-MS and LA-ICP-MS.
在这些ICP - MS及其联用技术中，非质谱干扰、有机介质的增敏效应、固体微区分析的定量校正技术等基本的理论与应用研究一直是研究的热点问题。
The traditional CDMA technology has serious multi address interference phenomenon, so the frequency spectrum efficiency of the channel can′t reach the optimal state.
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。
Without sidelobe in the transmission spectrum, there is no interference in decoding, which ensures the accuracy in the process of encoding and decoding.
由于透射谱几乎不存在旁瓣，所以解码时信号基本上不会出现干扰，保证了用户发送和接收信号的准确性。
It is proved that significant cooperative gain can be achieved by the proposed models in reducing interference and improving spectrum usage.
分析表明，这些协作检测算法能够改善系统的检测性能、减低干扰冲突、提高频谱利用率。
This paper reports a 31 bit low frequency SAW programmable tapped delay line. It is a key device in signal processing of interference free spread spectrum communication system.
文章报道的31位声表面波低频可程序抽头延迟线是一种用于扩频抗干扰通信系统所用的关键信号处理器件。
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