查询词典 spectrum analysis
- 与 spectrum analysis 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Secondly, a series of computer programs have been developed and verified according to the deterministic chaos theory and algorithms. These programs are deterministic chaos qualitative analysis tools including phase plots and Poincare section analysis software packages; deterministic chaos quantitative analysis tools including the largest Lyapunov exponent, correlation dimension and Kolmogorov entropy analysis codes and classical analysis such as power spectrum, autocorrelation coefficient and Hurst analysis programs.
其次,根据确定性混沌分析技术主要内容的算法思想,自行开发了相图、Poincare截面等定性分析程序软件包;最大李雅普诺夫指数、关联维数和K熵等定量分析程序软件包以及非线性混沌预测程序软件包;同时,还开发了功率谱、自相关系数、Hurst指数等传统分析技术程序软件包;并运用三种典型的周期运动、混沌运动及随机运动时间序列数据,验证了开发的程序。
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There are many noise sources in measuring the seismometer transfer function, the main noise sources are investigated. The method of cross-special analysis is presented, flow process diagram of computing is given, the algorithms are discussed in detail, such as low-pass digital filter, computing of seismometer transfer function initial values, time domain convolution, bilinear transformation, estimation of power spectrum and cross-spectrum, window functions and preprocessing of measuring data etc.
在地震计传递函数测试过程中的存在多中噪声,本文分析了主要的噪声来源;介绍了用互谱分析方法测试地震计频率特性的基本原理和方法;给出采用该方法确定地震计传递函数的算法流程图;并对计算过程中采用的低通滤波器、地震计传递函数的初值确定方法、卷积运算方法、自谱和互谱估计、采用的窗函数和测试数据的预处理进行了详细讨论。
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According to the results of comparison between these methods of spectrum evaluation, a new method of power spectrum evaluation of welding arc sound is advanced by means of association of wavelet packet analysis with the Welch average method .
对试验系统采集到的焊接电弧声进行了小波包多层分解,并利用周期图法、Welch 平均法及AR模型法,对各频段信号进行功率谱估计。根据不同谱估计方法的对比结果,提出小波包分解结合Welch 平均法对焊接电弧声进行功率谱估计的新方法。通过对几种规范与飞溅率下的电弧声功率谱的初步分析,发现其功率谱分布具有一定的规律性,并且不同频段谱峰值及其对应频率与焊接飞溅具有相关
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After analyzing five samples of the nickel based alloy, with different content of element Co, it was found that the intensity ratio of the analysis spectrum, Co393.60nm, and the comparison spectrum, Fe 393.03nm, is of strong linear and positive relationship with the content of the element Co.
使用Co393.60nm谱线为分析谱线,Fe 393.03nm谱线为比较谱线,对5种不同Co元素含量的镍基高温合金标准样品进行了分析测定。
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In the first session the fans vibration on-line monitoring system is realized with VC language, also compile auto power spectrum density function, cross power spectrum density function, autocorrelation function and cross correlation function etc spectral analysis function to carry through simple offline fault diagnosis.
首先用稳定性强、扩展性好的VC++语言开发了通风机振动在线监测系统,并编写了自功率谱密度函数、互功率谱密度函数、自相关函数和互相关函数等频谱分析函数来进行简单的离线故障诊断。
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In the gas-liquid phase reaction of catalytic oxidation of mesitylene by air to synthesize trimesic acid and the related process,an analysis method of reaction components was proposed,which includes chromatographic analysis,mass spectral analysis,IR spectrum,atomic absorption spectrophotometer and chemical titration for the purpose of analyzing reaction groups.
针对均三甲苯气液相催化空气氧化合成均苯三甲酸的反应及相关的工艺过程中,反应产物均苯三甲酸的分析问题,提出以色谱分析、质谱分析、红外光谱分析、原子吸收光谱分析及化学滴定为主要分析手段对反应组分进行分析,重点研究并建立了相关的分析方法。
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The controller receives, analyzes and processes the command input by operator via the man-machine interface, to adjust and control the controllable light signal generator according to the analysis processing result and the spectrum result checked by the light checker, the controller outputs the adjustment and result via the man-machine interface to the operator, to output light signal for the result of adjustment and control on the controllable light signal generator, via the light coupler to be coupled partly and feedback to the light checker to be checked, thereby forming a closed-circuit, while the light signal coupled to the light output via the light coupler reaches user target spectrum demand.
本发明公开了一种实现光信噪比可调节的光信号源装置及控制方法,所述装置包括:控制器、人机接口、可控光信号发生器、光耦合器、光信号检测器、光信号输出口;控制器接收操作者输入给人机接口的指令并分析和处理,运用分析处理结果、并结合光检测器检测的光谱结果数据来调节和控制可控光信号发生器,控制器将调节过程和调节结果通过人机接口输出给操作者,对可控光信号发生器调节和控制的结果输出光信号通过光耦合器耦合一部分又反馈给光检测器检测,这样形成一个闭环控制,使得通过光耦合器耦合到光输出口的光信号达到用户目标光谱要求。
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The spectroscopic analysis carried on Ni-based alloy visible spectrum with grating spectroscope and prism spectroscope and color spectrum had been taken, characteristic of visible spectrum was studied in Ni-based alloy.
摘要使用光栅看谱镜和棱镜看谱镜对镍基合金可见光谱进行看谱分析,摄制彩色图谱,研究基体元素镍和各成分元素的可见光谱特征。
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This system ofcompatible electromagnetism of frequency spectrum has someimportant functions listed as follows:(1) Analysis disturbance of the same or adjacent frequencies (2) Analysis of performance of radio link (3) Analysis of intermodulation (4) Automatic selection of frequency(auxiliary assignment of frequency)(5) Prediction of region of radio field intensity (6) Harmonization of frequency border (7) Analysis and design the system of microwave and satellite earth station.(8) Generate photographs This paper realizes the function of harmonization analysis ofthe system of microwave and satellite earth station. The concretework includes:(1) Based on the propagation model of radio wave,computing the absorption loss of atmosphere of microwavecommunication system and its fading, simulating the receivingvoltage and realizing the computation of disturbance andharmonization between microwave station and earth station.
频谱电磁兼容分析系统主要实现以下几个功能:⑴同、邻频干扰分析⑵无线链路性能分析⑶互调分析⑷频率自动选择⑸场强覆盖预测⑹边界协调⑺微波与卫星地球站系统设计和干扰协调分析⑻图形制作功能本文做为全省建设的电磁兼容分析系统的一部分,实现了微波站与地球站干扰协调分析这一功能,具体有:⑴以无线电波自由空间传播为模型,对微波通信系统的大气吸收损耗和衰落储备量进行了计算、对接收电平进行了模拟仿真,实现了微波- I -吉林大学硕士学位论文 Abstract站与地球站之间的干扰与协调计算。
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In order to study the relatively intensity of Zeeman effect split spectrum line, the quantum number distribution and the relatively intensity are presented in detail by the analysis of Hg(546.1 nm) spilt spectrum line in the external magnetic field; the image of coherence circle is obtained by CCD, and the intensity of image is analyzed, the relatively intensity of the spilt spectrum line by image disposed is close to the theoretical result. It is concluded that the phenomenon and rule of Zeeman effect can be analyzed by CCD image technology.
为了研究塞曼效应分裂谱线的相对强度,分析了Hg(546.1nm)谱线能级在外磁场中的分裂情况,详细给出了分裂能级的量子数分布和理论相对强度;在此基础上采用CCD拍摄了分裂谱线干涉圆环的图像,并对其进行了强度分析,通过图像强度处理得到各分裂谱线相对强度与理论分析结果十分接近;表明采用CCD图像技术能较好的分析塞曼效应现象和规律。
- 推荐网络例句
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On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.
另一方面,更重要的是由于城市住房是一种异质性产品。
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Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.
气候直方图是将所收集的降水量测定值,分为几个相等的区间作为横轴,并将各区间内所测定值依所出现的次数累积而成的面积,用柱子排起来的图形,也叫做柱状图。
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You rap, you know we are not so good at rapping, huh?
你唱吧,你也知道我们并不那么擅长说唱,对吧?