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。
Based on the analysis of spatial harmonics of periodically slotted structure the method for extending operation frequency-band through suppressing higher-order harmonics is discussed.
基于周期性槽孔结构的空间谐波的分析，讨论了抑制高次谐波以拓展使用频带的方法。
Active band-pass filters are widely used in signal analysis and measuring because of its good amplitude-frequency property.
有源带通滤波器以其良好的幅频特性，在信号的分析与测量中得到广泛应用。
By applying frequency analysis method to a standard active band-pass filter circuit, a formula to calculate characteristic frequencies is offered.
根据标准有源带通滤波器原理，采用频域分析法，可得出有源带通滤波器的特征频率计算公式。
The characteristic frequency band of the fault can be identified by wavelet packet decomposition and its energy spectrum conveniently, and the quantification analysis are then performed.
应用小波包分解及其能量谱直观地识别出故障的特征频带，并进行了量化分析。
Taking account of the up-conversion and cross-relaxation effects of cooperation, the spectrum analysis of highly doped EDWA can be carried out over a wider frequency band.
由于考虑了协同上转换和交叉弛豫效应，该算法能够对高掺杂的EDWA进行较宽频谱的分析。
The characteristic frequency band of the fault could be identified by wavelet packet decomposition and its energy spectrum conveniently, at the same time, quantification analysis were performed.
应用小波包分解及其能量谱直观地识别出故障的特征频带，并进行了量化分析。
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。
Finally, it gets frequency band which should be avoided and provides target variables or state variables for the optimum design of gantry crane by the harmonic response analysis for gantry crane.
通过对龙门起重机进行谐态分析，得出应该避免的固有频率段，并且为龙门起重机的优化设计提供了目标变量或状态变量。
This paper has taken TACAN system as an example and carried on the analysis and simulation to the specific frequency band navigation system signal.
以塔康系统为例对特定频段导航系统信号进行了分析和模拟。
Then, multifractal analysis is performed for low frequency sub-band. The multifractal spectrum is used as the characteristic parameters to filter pixels which mark different scenery.
然后对低频子带进行多重分形特性分析，再将多重分形谱作为特征参量进行像素筛选，筛选出标志不同景物的像素点。
The main strength of wavelet analysis is that it can divide data-changing frequency infinitely and it is then possible to use according prediction method in the different frequency band.
本文中使用小波变换的主要优点是它可无限分频的能力，可以将具有不同变化规律的因素造成的价格波动变化分离出来，从而为针对性的寻找预测方法和规律提供了可能；
At last, the energy of the bubble formation frequency band was compared with the bubble model which shows the reliability of the analysis methods mentioned above.
将气泡生成脉动能量与气泡模型进行比较，结果再次论证本文分析方法的可靠性，本文的研究工作为稠密气固两相流动的研究揭开了一个崭新的篇章。
At last, the energy of the bubble formation frequency band was compared with the bubble model which shows the reliability of the analysis methods mentioned above.
将气泡生成脉动能量与气泡模型进行比较，结果再次论证本文分析方法的可靠性，本文的研究工作为稠密气固两相流动的研究揭开了一个崭新的篇章。
应用推荐