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。
And it has introduced such several kinds of typical modules as data acquisition, Controller, Frequency spectrum analysis and remote data transmission, etc.
并在此基础上，详细介绍了数据链接、控制器、频谱分析、远程数据传输等几种典型模块。
Spectrum analysis diagnosis system (SADS) is composed of user interface, data management, KBM, reasoning facility, self-learning adjusting, remote fault diagnosis and system output modules etc.
油液光谱分析诊断系统(SADS)由人机交互、数据管理、知识库管理、推理机、自学习调整、远程故障诊断和系统输出等模块组成。
The short-base levelling data at Zhangdaou is analysed by the moving AR spectrum analysis.
用滑动AR谱分析方法对唐山地震前后的张道口短水准资料进行了分析。
Finally, it presented an example of main shaft carbon sealing monitoring and diagnosis and the spectrum feature analysis based on the data measured.
最后给出了主轴碳精密封监测诊断实例和实测数据频谱特征分析。
The spectrum analysis of Frequency-wavenumber(F-K)is one of the traditional methods of data processing for seismic array.
频率-波数（F- K）谱分析是地震台阵数据处理基本方法之一。
Topographical methods and geologic methods get the data about sedimentation rate spectrum with different ability for information and analysis.
据此，文章讨论了地形学方法和地质学方法在提取和分析沉积速率谱方面的潜力和局限。
The performance of the digital sensor is better than the traditional geophone during the spectrum and energy analysis of both data.
在频谱分析和能量曲线分析的对比中，数字检波器的性能也高于模拟检波器。
The catenary irregularity is researched from time-frequency analysis of the data detected based on existing research results of track irregularity and track spectrum.
在已有轨道不平顺和轨道谱研究成果的基础上，从接触网不平顺检测数据的时频分析方面对接触网不平顺进行了研究。
The first part includes zoom transform, cepstrum analysis, Hilbert transform, and the data transfer between the spectrum analyzer and the computer.
前一部分包括细化变换、倒谱技术、希尔伯特变换和谱分析器与计算机之间的数据传输。
Based on spectrum analysis, the modeling of geological model and log model is an effective approach to evaluate the quality of existed seismic data.
频谱分析基础上的模型正演是评价地震资料品质特别是分辨率的重要方法。
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。
Having introduced the data returns put, data pre-processing and data statistical analysis, spectrum analysis and power spectrum analysis.
介绍了数据回放、数据预处理、数据统计分析、频谱分析和功率谱分析。
Using electro-imaging data, the paper uses ELAN program and program of pore spectrum analysis to analyze and study secondary porosity of Budat formulation in Hailar basin.
文中利用电成像测井资料，采用ELAN程序、孔隙频谱分析程序对海拉尔盆地布达特地层的次生孔隙率进行分析研究。
The power spectrum density (PSD) function is important in gust load flight experiment data analysis.
功率谱密度（PSD）函数在阵风载荷飞行试验数据分析中占有重要的地位。
It provided a theoretical basis for the further analysis of the structure and spectrum data ownership of xanthones.
为今后进一步分析鉴定口山酮类化合物结构及进行波谱数据的归属提供理论基础。
As far as the function of software is concerned, it completes most of general functions in vibration test, such as data acquisition, frequency spectrum analysis, and so on.
仪器功能全面，完成了振动测试中通用的数据采集、频谱分析等功能，并添加了模态分析功能。
For the sake of getting more effective information, frequency spectrum analysis is applied to qualitatively analyze experimental data of inertia platform.
为了获取更多有效信息，将谱分析方法应用于惯性平台试验数据的定性分析。
DSO covers the theories of signal pretreatment, data collection, frequency detection, automatic control, analysis of frequency spectrum and data processing.
其中涉及到信号预处理、数据采集、同步触发、测频、自动控制、数据显示和处理、频谱分析等诸多方面的理论。
Through noise data collection and power spectrum analysis of turbojet and turbofan, the main noise source and characteristics of noise are discussed.
通过对涡轮喷气及涡轮风扇发动机试车噪声的采集和声功率谱分析，讨论发动机的主要噪声源和噪声的特征。
Further more, in view of periodical character of dam observation data, a frequency spectrum analysis method for data treatment is suggested.
针对大坝观测资料周期性较强的特点，首次提出了频谱回归及分析法。
This signal spectrum analysis system realizes the data acquisition of analog signal, and the processing of the signal through the computer.
该系统实现了对模拟信号的采集，并通过计算机完成对信号的分析处理。
This signal spectrum analysis system realizes the data acquisition of analog signal, and the processing of the signal through the computer.
该系统实现了对模拟信号的采集，并通过计算机完成对信号的分析处理。
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