The thesis presents the research and design of a V-band frequency quadrupler.
本文对V波段有源倍频器进行了设计研究。
This thesis presents the design and manufacture of a V-band frequency quadrupler.
本文研究了V波段四倍频器的设计和研制方法。
An X-band frequency synthesizer designed with harmonics mixing technology is presented.
本文主要介绍利用谐波混频技术设计的X波段频率合成器。
According to the analysis of spur performance, this design makes AD9858 achieve wide-band frequency sweeping of 300mhz.
基于对杂散的分析，本设计利用AD 9858完成了300mhz带宽的宽带线性扫频源的设计与硬件实现。
Taking the Narrow Band Frequency Modulation(NBFM)as an example, the process of communication question solution by EDA technology is given.
以非线性模拟调制中常见窄带调频为例，完整展现了借助EDA技术分析解决通信问题的过程。
Has realized the wideband earthquake material break system recognition well using the superiority frequency band frequency division phase technology.
利用优势频带分频相位技术较好地实现了宽频带地震资料的断裂系统识别。
Based on an auxiliary time-delay channel and ESPRIT approach, a new algorithm for wide band frequency estimation with sub-Nyquist sampling was proposed.
为了克服现有的欠采样频率估计方法存在的算法复杂、工程实现困难等问题，本文提出了一种基于虚拟仪器的三采样率切换的频率估计方法。
A design method for low phase noise agile X-band frequency synthesizer is presented, the theoretic analysis and calculation is performed and the test results are given.
介绍一种低相噪、捷变频x波段频率综合器设计方法，并进行理论分析、计算，最后给出测试结果。
The European HiperLAN standard operates in same frequency band as the U-NII.
欧洲超级无线局域网的标准工作频率与 U-NII 相同。
During a seven-day auction on eBay that ended on May 29, Novocin says he sold four items, including an X-Band Weather Radar Modulator for and a high-frequency radio circuit card for .
最后，经过七天的竞价，诺沃辛卖出了四件零件，包括以500美元的售价卖出一个雷达调节器和以32美元卖出一个高频无线电电路板。
The RF-7800V provides continuous coverage in the 30 to 108 MHZ frequency band at up to 50 watts of power.
还可在50w功率下提供30-108MHz的持续性频率覆盖。
At last, we recomposed some frequency band of wavelets, and the results can efficiently extract the features of acoustic emission signal.
最后通过对能反映源特征的频带信号进行重构，这样能更好更有效的提取声发射信号的本质特征。
Our company has strong development capabilities, self-developed 30-point frequency band launch teaching reading, the current leader in China.
我公司具有较强开发能力，自行开发的30个频点带发射的教学复读机，目前在国内领先。
It receives Ku frequency band signals from 10.7 through 12.75 GHz with improved frequency stability by using an external 10 MHz reference.
它可以接收Ku波段信号，频率范围10.7 ~ 12.75GHz，通过使用一个外部10MHz参照物改进频率的稳定性。
The basic idea using array sweeping to suppress harmonic interference is to reasonably design each sub-sweeping frequency band that can reach the goal of elimination of harmonic interference.
利用组合扫描压制谐波干扰的基本思想就是合理地设计各个子扫描频宽，达到消除谐波干扰的目的。
If only one channel is available in the frequency band equipment protection can be optionally implemented with a1 + 1hot standby configuration.
如果频带中只有一个信道可用，可以选择使用1 +1热备用配置实现设备保护。
In view of energy, the different frequency band is chosen corresponding to the distribution system with the different neutral grounding mode.
对于中性点接地方式不同的配电网，按照能量的观点，选择不同的频带来实现故障选线。
Pressure data were analyzed by wavelet transform in wavelet domain. Frequency band energy spectrum and intensity index of ISW based on wavelet coefficient were obtained.
通过基于子波的分析方法，对压力数据进行了分析，获得了基于子波系数的频带能量谱和冲击波强度指数。
Because of limited frequency band of channel, spread spectrum and MFSK modulations can not resolve that high speed transmission is in contradiction with limited frequency band.
当进行高速水下通信时，由于水下信道的频带有限，扩频和MFSK调制方式无法解决高速率信息传输和可利用信道频带窄的矛盾。
In low frequency sub band, the watermarking is embedded into host by the way of pixel-to-pixel embedding according to HVS model.
在低频分量部分，基于HVS视觉模型，将水印信号逐点变化地嵌入到原始图像中；
As a result, we accurately estimate the effective signals in high frequency band and better the noise suppression, thus broadening the effective frequency band.
这样做的结果，使高频段有效信号的估计更加准确，能更好地改善去噪效果，从而达到拓宽有效频带的目的。
Why DSL can be called a wide band technology is because it exploits OFDM which represents Orthogonal Frequency Division Multiplexing.
DSL技术之所以能够被称为宽带技术，主要是由于它的复用方式是OFDM。
AimTo use the common sample frequency in low speed to the sample of band-pass signals of multiple different frequency point in full frequency rage.
目的用公共的低速采样频率对全频段内许多不同频点的带通信号进行采样。
The theoretical and experimental results are presented, which show the low axial ratio and low loss characteristics over octave frequency band of the polarizer.
给出理论和实验结果，证明了这种四层曲折圆极化器可以在倍频程范围内得到良好的低轴比、低损耗特性。
The Cover Matrix enhanced information of cylinder explosive noise signal at frequency band of cylinder explosive.
该包含矩阵加强了气缸爆发噪声信号在气缸爆发频率所在频段的信息。
Stereo channels are configured in the same way, but with a fixed-frequency 4-band eq (blue).
立体声道配置以同样的方式，但有固定频率4波段均衡器(蓝色)。
The fault characteristic periodic signals of the rolling bearing are in low frequency band and often buried in the noise.
反映滚动轴承故障的特征周期信号处于较低频带内，容易被噪声淹没，难以检测。
The fault characteristic periodic signals of the rolling bearing are in low frequency band and often buried in the noise.
反映滚动轴承故障的特征周期信号处于较低频带内，容易被噪声淹没，难以检测。
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