frequency band

It theas good filtering property, convenient for setting the frequency band.

它滤波性能好 、 频带设定方便、体积小、结构简单、成本低.

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UWB is an emerging wireless technology capable of high data rate transmission over a wide spectrum of frequency band with very low power.

UWB（超宽带）是一种以极低功率在短距离内高速传输数据的无线技术。

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That is mixing the baseband signal ( linear frequency modulation signal and sinusoid signal) with two orthogonal local oscillated signal generated using direct digital synthetic technology to move the baseband signal to intermediate frequency band.

同样运用直接数字合成技术产生基带信号&线性调频信号和正弦信号，与本地载波混频后，将其频谱搬移到中频，完成数字上变频。

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Design a pendulum vibration absorber which can be installed at the tail shaft to reduce the axial vibration transmission between the screw and the hull in specific frequency band.

设计了一种安装于实验装置尾轴的离心摆式纵向动力吸振器，用于降低特定频段内螺旋桨到艇体之间的纵向振动传递。

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A Method for Improving AR Spectrum Estimation by Dividing Frequency Band

一种改善AR谱估计性能的分频段方法

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The optimum-frequency band is usually a compromise between these two opposing factors.

最佳频带通常选择在这两个相对的因素之间.

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This allows the creation of six quarter wavelength antenna elements in the high frequency band.

这允许创建高频段内的6个四分之一波长的天线元件.

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At the same time, monitoring system provides full position and wide band of vibration data to PC Analysis System. Time domain analysis and frequency domain analysis based on these data. Monitoring parameters can be revised.

监控系统又同时向上位分析系统提供全方位全频段的振动数据，这些数据作为风电机组振动的时域分析、频谱分析依据，并进一步修订监控参数，提高风电机组监控的控制精度和技术水平。

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Secondly, the characteristic of baseband signal and frequency band signal in RFID system are analyzed.

其次，分析射频识别系统基带信号与频带信号的特性，以及信道噪声与干扰的特点，指明信号的潜在影响因素。

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Simulation results for the structural acoustical coupling in enclosed space show that the structure-brone noise can be reduced effectively in assigned frequency band, the maximum control value for noise peak value is near 20 dB ( A).

封闭空间结构振动声耦合反馈力控制仿真结果表明：通过合理选择性能加权函数，噪声可以在指定频带得到良好的控制，最大噪声峰值近20dB（A）。

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The design is very suitable for wireless communication systems which work in ISM frequency band.

所设计的软硬件接口非常适合在ism频段的无线通信系统中应用.

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Gear signal was decomposed into independent frequency band, giving diagnosis information without slipping and redundancy.

利用小波把齿轮振动信号分解到独立的频带里, 提供无冗余、无疏漏的诊断信息.

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After that, we gave the application of them in the frequency band extension technique.

最后, 给出了数字反卷积在频带展宽技术中的应用.

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Channels in this low-frequency band soon became crowded.

渠道在这低频段很快成为拥挤.

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A new algorithm for near-field synthetic seismogram with a broad frequency band

一种适于近场理论地震图宽频域计算的矩阵分解算法

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Several shortcomings of SRR suggested by Pendry resist the practice of LHM. The composite structure of SRR and wires has the disadvantages of high loss and narrow frequency band.

Pendry所提出的应用SRR和金属线实现的左手媒质结构有几个明显缺陷，高损耗，窄频带，相对大的结构尺寸使得这个结构还不能进入实用阶段。

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Frequency feature of S-band tapered magnetically insulated transmission line oscillator

超高频谐振式频率计S波段锥形磁绝缘线振荡器频率特性

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This paper discusses the dispersion compensation of wavelength phase mismatch in frequency-conversion of wide-band Nd+ 3: glass laser, including self-compensation of tandem crystals and compensation of dispersion components ( a prism or grating).

本文对宽频带钕玻璃激光频率转换中波长相位失配的色散补偿进行研究，包括晶体串接自补偿和色散元件棱镜与光栅的补偿。

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The Design of a Precision Coaxial Matched Termination for the Frequency Band 0-8 GHz

0～8GHz精密同轴匹配终端的设计

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This effect is obvious at lower frequency band.

这种效应在振动低频区段更为显著.

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Signal noise ratio weighted stack by dividing frequency band

分频信噪比加权叠加

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We can't hear any program when we turn our radio onto this frequency band.

当收音机调到这个频段上时,什么节目也收听不到.

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The distance between the acoustic-emission source and the receiving transducer, and the background noise level are primary factors in selecting a particular frequency band.

声发射源与接收讯号传感器间的距离以及环境噪声的电平是选择频带的主要依据。

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Booster compressor noise has the characteristics of wide frequency band, intense low fre-quency sound and considerably high total sound pressure level.

增压机噪声具有频带宽、低频声强烈，且总声级又相当高的特性。

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Simulation results show that efficiency and can operate over the whole main-mode frequency band.

仿真结果表明:该器件带宽可覆盖整个波导主模频段.

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By flattening the noise amplification due to the waterbed effect in the whole disturbance amplification frequency band intuitively, the designed feedback controller can suppress the disturbance amplification to almost the minimum value for the given disturbance attenuation and ensure good stability of the system.

通过在整个控制频带展平噪声放大，噪声放大峰值可以被抑制到给定降噪情况下的最小值，保证了系统好的稳定性。

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To obtain the characteristics of the left-hand material radome, an Archimedean antenna with broad main beam and broad frequency band is set behind it.

用一个宽波束和宽频带的阿基米德螺旋天线作为被罩天线，研究了该左手材料天线罩的性能。

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RFID tag in UHF frequency band is more attractive because it is for far distance.

UHF频段有源射频标签由于远距离识别的特点,是RFID的 发展方向,目前国内在这一领域的研发尚处于空白.

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Spikes and spike-slow waves were found in the EEG. In power spectra analysis, the delta power decreased while the alpha and the theta power increased, the EEG frequency band moved to the high-frequency rang.

伏核EEG出现棘波和棘慢综合波，并持续增多，功率谱分析显示δ频段功率百分比南京医科大学硕士学位论文逐渐减少，而0和以频段功率百分比逐渐增加，总功率增加。

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However, in an extreme situation or frequency band, mark-to-market mechanism can not catch the changing phase.

然而, 在极端情况即高频波段时, 盯市就追赶不上相位变化了.

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