Which factors do the frequency spectrum of ultrasound have relation with?
以及液体中超声波频谱都与那些因数有关？
Frequency spectrum element, carrier frequency. Frequency type can be specified.
频谱元件，载波频率。可指定频率类型。
First, it introduces the principle and algorithm of frequency spectrum analysis.
首先讲述了频谱分析的原理以及实现的算法。
The analysis of frequency spectrum is an important link in seismic data processing.
在地震数据处理中，频谱分析是不可缺少的重要环节。
While this division of the frequency spectrum works, said Goldsmith, it's not infallible.
戈德史密斯表示，这种频谱划分方式尽管行之有效，却并非尽善尽美。
This paper introduced a method of forecasting precipitation with frequency spectrum analysis.
本文介绍了用频谱分析法进行降水量分析和预报的基本方法。
The influence of some factors on pressure oscillation is studied by frequency spectrum analysis.
采用频谱分析方法，分析诸因素对压力振动特性的影响。
This can cause some input frequency spectrum distortion which will have an effect on the computed FRF.
这会引起一定的输入频谱失真，对计算得到的频响产生影响。
According to the frequency spectrum and covariance, the blur strength of the blurred image is evaluated.
根据模糊图像的频谱和协方差特性估计模糊图像的模糊度。
Through removing mean and frequency spectrum correction, the measurement precision of system is improved.
采用去均值和频谱校正的方法，改善了系统的测量精度。
The correlated information can be picked up in the frequency spectrum charts of dynamic resistance curves.
动态电阻曲线频谱图中也同样可以提取出与熔核直径相关的信息。
Based on the analysis of the sensor signal, the frequency spectrum is analyzed with SD-380 dynamic analyzer.
在分析传感器信号的基础上，用SD- 380动态分析仪对信号作了频谱分析。
Also, a large frequency spectrum (698-806 MHz) was freed by switching over from analog TV to the digital one.
此外，从模拟电视信号到数字电视信号的切换也释放了广阔的频道(698- 806mhz)。
Applying period frequency spectrum method to analysis of digital seismic recording is discussed in this parer.
论述了周期-频度谱方法在分析数字化地震记录中的应用。
The frequency spectrum and characteristics of pulse interval and width modulation (PIWM) are derived in detail.
推导了非同步型脉冲间隔与宽度双重调制(P I W M)的频谱及其特点。
Because the structure vibrates at some modal, a vibration peak value will appear at its noise frequency spectrum.
这是因为结构以某一阶模态振动时，将在其辐射噪声频谱上出现一个峰值。
The entire available frequency spectrum is used with 79 hops of 1mhz bandwidth, analogous to the IEEE 802.11 standard.
以1M hz带宽79跳来利用这个完整的可用频谱。
The sonic signature needs to keep the treble detail, but increase the frequency spectrum and add a more full sound.
声音特色方面，要保持高音的细节，但增加频响宽度，增加更多的饱满的声音。
The fault is diagnosed by extracting the fault feature component from the frequency spectrum of the modulated signal.
通过对调制信号作谱分析，以其频谱中是否存在某种故障的特征频率分量来诊断有无该种故障。
Through vibration frequency spectrum analysis of no-tillage seeder in field, its vibration characteristics were obtained.
通过对播种机的田间振动频谱分析，得到了它的的振动特征。
Our digital data link USES the frequency spectrum allocated to small UAS much more efficiently than the analog link it replaces.
我们的数字数据链采用频谱分配给小型无人机的效率远远高于模拟系统。
Using frequency spectrum analysis of phase function to calculate its auto power spectrum can reflect its frequency structure.
利用相函数的频谱分析求其自功率谱，可以反映它的频率结构。
Objective: To study the mechanism of frequency spectrum water prevented leukocyte adhesion and improved microcirculation in rat.
目的：探讨频谱水预防大鼠白细胞粘附和改善微循环障碍的机理。
Analysis of frequency spectrum of human ECG using method of real-time frequency spectrum analysis and filter method is presented.
本文介绍了用实时频谱分析法和滤波器法对人体心电信息作频谱分析。
Using Fourier series, the frequency spectrum analysis was analyzed, and spectrum data of harmony wave less than 19 were calculated.
利用傅里叶级数对其进行了频谱分析，计算了次数小于19次的各次谐波电流均方根值的频谱数据。
When sampling frequency is quite high, frequency spectrum distributing of digital natural sampling and natural sampling is similarity.
当采样频率比较高时，数字化自然采样法的频谱分布与自然采样法的频谱分布类似。
The trend of the future mobile communication is digital transformation speed raised and radio frequency spectrum resource used sufficiently.
未来移动通信系统的发展趋势之一便是数据传输速率得到极大提高同时无线频谱资源会得到更充分地利用。
Signal sequence DFT is a signal frequency spectrum sampling sets, therefore DFT can be directly used for analysis of signals frequency spectrum.
信号序列的DFT本身就是信号频谱的采样集，所以DFT可直接用于分析信号的频谱。
The principles and experimental results of a frequency spectrum analyzer for all types of single transient processes are described in this paper.
本文叙述了一个适用于各种单次瞬态过程的频谱分析仪的工作原理和实验结果。
The principles and experimental results of a frequency spectrum analyzer for all types of single transient processes are described in this paper.
本文叙述了一个适用于各种单次瞬态过程的频谱分析仪的工作原理和实验结果。
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