图20描述了漏源极电压主要原理产生的电磁干扰频谱。
The spectra of the main elements of the drain-source voltage can be found in Fig. 20.
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。
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.
根据中频带通采样雷达噪声频谱在线监测方法,实现环境噪声和外部干扰频谱在线监测。
According to method inspecting on-line of noises spectrum in the IF-sampling radar. Realised that inspecting noises and interference of environment on-line.
就象漏源极电压的例子那样,用这种方法也可以找出漏极电流的哪一部分对电磁干扰频谱产生影响。
As in case of drain-source voltage this method allows to associate the elements of the drain current waveform with its contribution to the whole spectrum.
直接序列扩频通过扩展干扰频谱降低有效干扰功率进行抗干扰,跳频则主要是通过频点跳变的方式躲避干扰。
DSSS system combats the jamming by reducing the effective power of jamming, and FH system does through the frequency hopping to avoid jamming.
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。
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.
在技术成熟阶段,雷神的干扰机将进行研发测试,以确保频谱精度、功率、反应速度和定向能力。
In the technology maturation phase, Raytheon's jammer will be developed and tested to ensure spectral precision, power, reactive speed and directivity.
空白频谱是有意留出的空闲电视频道,其目的是防止现有电视台之间信号干扰。
White Spaces are TV channels intentionally left unused to avoid interference between existing TV stations.
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 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.
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。
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.
安德里亚·戈德史密斯:人们可以采取某种方式来划分频谱,不管是通过时间、频率或者编码加以划分,然后将频段分配给用户,使他们之间的通话不受干扰。
Andrea Goldsmith: you can break up the frequency spectrum in some way whether it's time or frequency or codes so that you assign it to users so they don't interfere with each other.
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 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.
主要用于激光加工机、激光通讯、激光雷达、激光图像遥感、激光干扰、声光频谱分析等领域,产品已得到广泛应用。
Mostly design to laser machine, laser communication, lidar, laser image remote sensing, laser jamming, acousto-optic spectral analysis region, product had been able to extensive use.
该方案通过灵活设计频谱监测部件的工作方式,不但能使雷达工作在干扰较低的频段,而且还可充分利用频谱监测所得的外界噪声数据。
By changing the working mode of the frequency spectrum monitor (FSM), the radar can run in the frequency segment with lower noise disturbances, and the ambient noise data obtained by FSM ca.
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.
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。
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.
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。
Amplifier distortion produces a dilation of the spectrum of the input signal (" spectral regrowth ") which causes interference to communications in adjacent channels.
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。
Dynamic spectrum allocation optimizes the allocation of uncertain spectrum for binary interference model and accumulative interference model.
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。
Finally, the simulation shows that the proposed algorithm can reduce the interference temperature estimation valuation and improve spectrum efficiency under the directed communication conditions.
结果表明,W - O方法得到的信号频谱比传统加窗具有更少的旁瓣干扰和更高的主瓣-第一旁瓣能量比。
Result indicates that the spectrum gained from using W-O way comprises much fewer side lobes and achieves higher energy ratio of main lobes to the first side lobe.
加窗插值fft算法减小了频谱泄漏误差和降低了谐波之间的相互干扰的影响。
The algorithm of interpolation of hanning Windows FFT reduce the spectral leakage error and the interference between harmonics.
分析了存在距离-速度同步拖引干扰时的信号频谱特征,研究了一种脉冲多普勒(PD)雷达抗距离-速度同步拖引干扰的方法。
The spectrum characteristics of synchronous jamming on range and velocity are analyzed. A method for a PD radar to counter the jamming is also discussed.
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。
It is proved that significant cooperative gain can be achieved by the proposed models in reducing interference and improving spectrum usage.
CDMA技术存在着严重的多址干扰(MAI),使得信道的频谱效率未能达到最佳,系统的用户容量也不易达到最大。
Conventional CDMA communication system has serious mutiple access interference (MAI), so the spectral efficiency and user capacity of channel is not maximum.
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。
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.
安德里亚·戈德史密斯:人们可以采取某种方式来划分频谱,不管是通过时间、频率或者编码加以划分,然后将频段分配给用户,使他们之间的通话不受干扰。
Andrea Goldsmith: You can break up the frequency spectrum in some way whether it 's time or frequency or codes so that assign it to users so they don't interfere with each other.
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。
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.
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。
What this paper tells of, analyzes and summarizes is some common detection model and spectrum estimation algorithm based on the interference temperature.
该算法通过对FFT算法做简单变换,减小了频谱泄漏误差,降低了谐波之间的相互干扰。
Through simple transforms of FFT algorithm, the amending algorithm can reduce satisfactorily the leakage error, and obtain accurate analysis results.
该算法通过对FFT算法做简单变换,减小了频谱泄漏误差,降低了谐波之间的相互干扰。
Through simple transforms of FFT algorithm, the amending algorithm can reduce satisfactorily the leakage error, and obtain accurate analysis results.
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