dominant frequency

The dominant frequency in an inward-emitting coaxial virtual cathode oscillator is solved analytically based on the steady-state relativistic-fluid-Maxwell equations.

对向内发射同轴虚阴极振荡器微波主频进行了解析求解，利用稳态相对论流体Maxwell方程组得到了微波主频所满足的方程；

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With the digital technology in recent years, Direct Digital Synthesis ( DDS) technology had got development rapidly and been one of dominant frequency synthesis techniques.

随着数字技术的发展，近十几年来，直接数字频率合成（DDS）技术发展很快，已发展成为主要的频率合成技术之一。

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It can compute the seismic resolution limit in time and space ( 1/ 4 wavelength) according to seismic apparent dominant frequency and the velocity of targets.

根据地震视主频和目的层的速度可以计算出空间和时间地震分辨率（1/4波长）极限。

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Influence of the variety of the apparent dominant frequency of Ricker wavelets on the detection effects of chaotic oscillator

Ricker子波视主频的变化对混沌振子检测效果的影响

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Experimental results show that the dominant frequency of spiral wave decreases rapidly and then slowly with the increase of the chord-wise position.

实验结果表明，螺旋波主频随着弦向位置的增大先是迅速而后平缓减小。

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The main parameters that effect horizontal resolution of migration imaging were identified as medium velocity, dominant frequency of seismic wavelet and aperture angle of migration processing.

结果表明，影响偏移成像水平分辨率的主要参数是介质速度、地震子波主频和偏移处理的孔径角。

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Experimental results about influence of gas saturation upon compressional head wave velocity, amplitude and dominant frequency

含气饱和度对纵波首波速度、振幅及主频影响的实验结果

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Method to Determine the Dominant Frequency of the Synthetic Seismogram

确定合成地震记录子波主频的方法研究

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The results were as follows: 1. The dominant frequency and pulse duration were increased when young greater horseshoe bats grew increasingly.

马铁菊头蝠声波主频率、声脉冲时间随幼蝠的生长发育而逐渐升高；

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Assessment of influence of earthquake dominant frequency on active tuned mass damper resistant control design

地震卓越频率（EDF）对主动调谐质量阻尼器抗震控制设计的影响评价

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Results In the basic state of the patients with active duodenal ulcer, dominant frequency and percentage of normal gastric slow wave were lower than in the healthy subjects ( P 0.05);

结果：十二指肠溃疡病人基础状态胃电主频率、正常胃慢波百分比明显低于健康人（P0.05）；

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The computer dominant frequency is higher, the parallel computing performance is better.

计算机主频越高，并行计算性能越好。

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It is possible to predict coal seam thickness with trace integration method, but the type and dominant frequency of wavelet have an effect on the calculated coal seam thickness.

道积分法反演煤层厚度，其计算的煤层厚度往往受到地震子波的类型和主频的影响。

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Objective To study the influences of target tone recognition task on dominant frequency fluctuation structure of EEG.

目的研究靶音识别作业对脑波α段频率涨落特征的影响及各优势成分的作业相关变化。

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Dominant Frequency Uncertainty Analysis of EEG α Activity in Pilots with Transient Ischemic Attacks

发生脑短暂性缺血发作的飞行员脑α波优势频率的不确定性分析

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Speech Feature Extraction Algorithm Based on Subband Dominant Frequency Information

基于子带主频率信息的语音特征提取算法

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The dominant frequency of wavelet is estimated by using quality borehole-side seismic trace of migrated depth section, and zero phase wavelet is used here.

要在深度偏移剖面上选取品质较好的井旁地震道计算子波的主频，要选用零相位子波。

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Severe weather warning information issued by the technology of RDS, and added up to the dominant frequency to launch.

利用RDS技术发布气象预警信息，与主频广播信号叠加后发射。

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We found that the converted electromagnetic wave has symmetrical two dominant frequency crests in the spectrum.

在频谱分析中发现，转换电磁波在频率谱上存在对称的双主频峰。

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Most of the conventional data fitting methods use orthogonal polynomials, which have shortcomings such as lowering the dominant frequency, distorting the breakpoint and the enormous error, etc.

在传统的地震数据拟合技术中大都采用正交多项式拟合方法，这种拟合方法的拟合结果存在拟合不够准确的缺点，导致处理后地震数据的主频降低、断点变形。

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Vibration frequency of shells is effected on the first 10 order dominant frequency.

容器壳体的振动频谱主要受前10阶固有频率的影响；

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Instantaneous attributes including amplitude, instantaneous frequency, bandwidth, dominant frequency and decay rate are used to analyze thin interbeds.

利用地震瞬时谱的属性（包括瞬时振幅、瞬时频率、瞬时带宽、瞬时主频及瞬时品质因数等）进行地震薄互层分析。

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Prediction of Dominant Frequency of Self-Sustaining Oscillation Derived from Free Shear Layer

喷口自由剪切层自激振荡优势频率的预测

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Frequency domain mainly uses the Fourier transform to get the frequency spectrogram or power spectrum, then determining the dominant frequency by the peak points.

频域方面主要采用傅里叶变换得到频谱图或功率谱，由峰值点确定振动的主频位置。

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Recursive noise elimination in f-x domain and spectrum equalization under dominant frequency restriction

优势频率约束下的递推f-x去噪和谱均衡方法

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The distributions of the values of fluctuating pressure conform to the law of normal distribution; and the dominant frequency is low frequency.

脉动压强幅值分布符合正态分布规律，优势频率为低频。

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Only when the cutting speed is slower than that of combustion reaction, the dominant frequency relates to the waviness frequency of cut front.

当切割速度小于燃烧反应速度时，光信号主频与切割面波纹频率一致。

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Conclusion The dominant frequency uncertainty analysis of alpha band showed clear superiority of computerized evaluation over routine visual assessment for the diagnosis of minor cerebral ischemia.

结论应用脑α波优势频率不确定性分析评价脑的缺血反应比EEG判读更优越。

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The accuracy of extracting the dominant frequency is studied by calculating the fault distance with the simulations results.

并仿真分析验证了该故障测距方法的适应性和精确性。

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By taking the dominant frequency determined as the objective, the poststack high resolution processing is carried out for the seismic data;

以确定出的主频为目标，对地震资料进行叠后高分辨率处理；

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