time domain data 中文意思是什麼

time domain data 解釋
時域數據
  • time : n 1 時,時間,時日,歲月。2 時候,時刻;期間;時節,季節;〈常pl 〉時期,年代,時代; 〈the time ...
  • domain : n 1 領土,版圖;領地。2 管區,勢力圈;(特定動物等的)生長圈;(學問、活動等的)領域,范圍;【物...
  • data : n 1 資料,材料〈此詞系 datum 的復數。但 datum 罕用,一般即以 data 作為集合詞,在口語中往往用單數...
  1. In this article, the fundamental principle and current research of optical data storage including cd and dvd, three - dimensional optical data storage and near - field high - density optical data storage are summarized. a two - dimensional finite difference time domain program for analysis of solid immersion lens system is compiled

    本論文概述了已產業化的以cd和dvd為代表的光盤存儲技術和在開發中的高密度光存儲技術(主要包括三維光數據存儲技術及近場光學超高密度光存儲技術)的原理及研究現狀。
  2. This paper describes briefly the gist of the data - processing and interpretation system for time domain " mise - a - la masse " method and deals in detail with its field application in two metallic ore districts within sichuan province

    摘要簡要介紹時間域充電法資料處理及解釋系統的基本內容,並詳細介紹了在四川省境內的2個金屬礦區的野外應用結果。
  3. Abstract : this paper describes briefly the gist of the data - processing and interpretation system for time domain “ mise - a - la masse ” method and deals in detail with its field application in two metallic ore districts within sichuan province

    文摘:簡要介紹時間域充電法資料處理及解釋系統的基本內容,並詳細介紹了在四川省境內的2個金屬礦區的野外應用結果。
  4. Analyzing the characteristics of the time - series data of horizontal displacement from the continuous gps network in time and frequency domain, the similarity transformation is conducted in order to give prominence to the local deformation by selecting a few stations in the eastern china

    摘要對gps基準站連續觀測水平位移時間序列數據的時頻特徵進行了分析,為了突出局部變化的信息,在中國大陸東部選取一組參考點進行相似變換。
  5. The frequency response of sampled - data control systems is studied in detail. the presently accepted definition of the frequency response and the relatedcomputation with time - domain and frequency - domain lifting techniques are analyzedand discussed, and it is pointed out that the frequency response thus obtained isindeed the frequency response of the lifted system. because the frequency responseof the system can not be preserved by lifting, the frequency response of the liftedsystem has nothing to do with the real frequency response of the sampled - datacontrol system

    對目前公認的頻率響應的定義和計算方法? ?時間域提升法和頻域提升法進行了分析,指出這些演算法所給出的頻率響應,實質上是提升系統的頻率響應,由於提升並不能保證頻率特性不變,所以提升系統的頻率響應也就不是采樣控制系統的真正的頻率響應。
  6. Research on impedance inversion of cross - hole seismic data in time domain

    井間地震資料時間域波阻抗反演研究
  7. Meanwhile, it is not confined in one area when developed for the second time, and by analyzing special domain data, the modal can be applied in the industries of banking, insurance, meteorology, and so on

    同時, sm miner挖掘模型在h次開發上並不受行業限制,通過分析具體的行業領域數據,本模型完全可以應用到銀行、保險、氣象等其它行業中。
  8. The data processing system further includes a convoluted inverse transforming means for inversely transforming the discrete function in a second - variable - domain back to the time domain at a second sampling frequency for converting t he input data to a set corresponding data sampled at the second sampling frequency

    此資料處理系統也包含一個旋積的逆轉換裝置,用來對以第二個變數為定義領域的離散函數,逆轉換回以第二個取樣頻率為頻率及以時間為定義領域的函數,也就是將資料轉換成以第二個取樣頻率所取樣的資料。
  9. 5, using the method of virtual value. kurtosis, time domain averaging and so on to pick up equipment fault information, and processing data by the method of svm theory

    5 、利用有效值、峭度、時域平均分析等方法提取設備故障信息,並利用支持向量機( svm )理論進行機器學習演算法研究。
  10. One is to use fourier transformation to convert the source signal from time domain to frequency domain and to discard high frequency harmonious components upwards of 19 ( gb / t14953 - 93 d5. 3 demanding ), then to have static huffman coding to the quantized char array which is composed of reserved direct current component and basic wave and each high frequency " s amplitudes and angles. the other is to use discrete wavelet transformation to convert the source signal from time domain to frequency domain and to set the high frequency coefficients that its absolute value is smaller than the given threshold to zero, then to have dynamic huffman coding to the quantized char array which is composed of multiple, wavelet ' s level, datum length, low frequency coefficients and reserved high frequency coefficients. mass simulinks and analyses under the two circumstances have done to show that data compression ratio is small and the relative error is also small and within the permission of engineering and the compression problem can be solved in theory of measured datum of power system

    第一種情況的壓縮方法為:採用傳統的傅立葉變換把原始信號從時間域變換到頻率域,舍棄20次及其以上的高次諧波成分(保證了gb / t14953 ? 93d5 . 3要求) ,然後對保留的直流分量、基波和各次諧波的幅值和相角數據量化后和量化時分別乘以的倍數系數構成一個數組,以字元形式保存,採用靜態huffman編碼對變換數據進行壓縮;採用離散小波變換把原始信號從時間域變換到頻率域,然後對分解得到的高頻系數進行閾值量化處理,對乘以的倍數系數、小波變換的階數、小波變換后的低頻、各級高頻以及原始數據長度、量化后的低頻系數以及保留的高頻系數大小、位置構成一個數組,以字元形式保存,採用動態huffman編碼對這個文件進行壓縮。
  11. ( 3 ) features of turbopump test data both in time domain and in frequency domain are analyzed using statistical estimation methods. the value of applying these features into nd is discussed

    ( 3 )應用統計特徵估計方法,分別對渦輪泵試車數據的時域特徵和頻域特徵進行了統計分析,並討論了這些特徵在新異類檢測中的應用價值。
  12. Then the experimental data was analyzed in time domain and frequency domain. thirdly the hilbert translation method was used to detect the nonlinearity of the system. at last the model of this kind of system was identified, the result show that the theory model is the same format as the experiment model

    然後利用振動臺做掃頻試驗,對試驗數據在時域與頻域進行分析處理,利用hilbert變換檢測系統的非線性,分析系統的非線性特點,在此基礎上進行系統的模型識別,並將實驗建立的模型與理論模型進行比較。
  13. The control software connects with pci driver to send order to the measurement system, in order to initialize the system and start collection. it will access the time domain data in ram and frequence domaim data in dsp through pci bus, finish data transfer automaticly, display the data in many ways such as graphicness and table, and store the data into harddisk at the same time

    總控軟體與pci驅動程序掛鉤,向測試系統發命令,實現系統的初始化和啟動採集等動作,並通過pci總線讀取ram中的時域數據和dsp中的頻域數據,自動完成數據轉換,以圖形和表格等多種方式實時顯示被測參數,並在顯示的同時將數據存儲到硬盤中去。
  14. This thesis presents the time domain character and frequency domain character of common used signals, including digital modulation signals and analogue modulation signals. the first method is to extract feature parameters from time domain and frequency domain. it can distinguish 2ask, 4ask, 2fsk, 4fsk, bpsk, qpsk, 16qam, 64qam and it is demonstrated by simulation data and sampled data

    本文介紹了常用的通信信號(包括模擬調制樣式和數字調制樣式)的時域、頻域特徵,首先從時頻域提取信號的特徵參數,用於區分2ask 、 4ask 、 2fsk 、 4fsk 、 bpsk 、 qpsk 、 16qam 、 64qam這8種信號,用模擬信號和實際采樣信號驗證了該方法的可行性。
  15. The latter primarily improves the transmission distance and reliability by selecting the repeater automatically. the frequency domain auto - adaptatation filter algorithm is deduced and reliabity by selecting the repeater automatically. the frequency domain auto - adaptaion filter algorithm is deduced and a method of frequency domain algorithm to restrain the marrow band interference is given on the foundation of the time domain minimum mean square error auto - adaptation filter. then the meter reading system to can learn the power network structure and automatically create linked path by using neural networks auto - study ability and analyzing the reading data

    後者主要是對中繼節點的自動選擇,以提高信息的傳輸距離與可靠性。針對電力線擴頻通信通道的特點,在時域最小均方誤差自適應濾波演算法的基礎上,推導了頻域自適應濾波演算法,並提出了頻域演算法抑制窄帶干擾的具體方法。運用神經網路的自學習方法,通過對抄讀數據進行分析,使抄表系統感知電網拓撲結構,自動建立中繼路徑。
  16. As another application instance, a subsystem monitoring ultra - high frequency partial discharge of transformer is developed, which can analyse, process, plot time - domain pd data and demodulated pd data, besides, it also has such discharge type recognition function as spectrum calculation and auto correlation

    作為另一應用實例,研製了變壓器超高頻局放監測子系統,此系統具有分析、處理、顯示超高頻時域波形及其包絡線波形數據的功能,還具有用於放電模式識別的時域波形及其包絡線波形的頻譜計算和自相關處理等功能。
  17. This dissertation employed a step - by - step azimuth processing way which can make full use of the storage trait of the echoed data, to implement range curve compensation directly in the time domain, without

    在距離壓縮之後,每次取一個陣長的數據子矩陣進行距離彎曲校正和方位向壓縮,這樣逐個孔徑地依次完成成像處理,得到目標的sar圖像。
  18. The noise suppression uses two methods ? mlms self - adaptive filter arithmetic and blind signal separation. the lung sounds data analysis uses time domain analysis, frequency domain analysis, power spectra analysis, time - varying spectra analysis and so on. healthy people and lung disease patients ’ lung sounds are collected by the system and the data affirms the reliability and practicability of the system

    我們利用該系統對正常人和肺病患者的肺音進行了採集和分析,通過這些分析數據,既肯定了該系統的可靠性和實用性,又對各種肺音分析演算法進行了對比和驗證,對該系統的臨床應用打下了良好的基礎。
  19. A computer - based method and computer - readable medium containing computer - executable instructions for assimilating data collected by a time domain reflectometer and displaying more than two waves representing reflections of a pulse on conductors is provided

    提供了基於計算機演算法及可被計算機讀出的包含著計算機可執行指令的媒體,用以接收由時域反射計收集的信息,顯示導體內一個脈沖反射的兩個以上的波形。
  20. At the same time, domain data are complicate, and the representation forms are various, although data of each department have many similarities

    領域中各部門數據雖然存在很多共性,但是由於領域應用的規范化程度較低,領域數據的復雜性較大,表現形式卻多種多樣,導致信息共享困難。
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