頻域測量 的英文怎麼說

中文拼音 [bīnyùcèliáng]
頻域測量 英文
frequency domain measure
  • 頻 : Ⅰ形容詞（次數多） frequent Ⅱ副詞（屢次） frequently; repeatedly Ⅲ名詞1 [物理學] （物體每秒鐘振動...
  • 域 : 名詞（在一定疆界內的地方; 疆域） land within certain boundaries; territory; region
  • 測 : 動詞1. （測量） survey; fathom; measure 2. （測度; 推測） conjecture; infer
  • 量 : 量動1. （度量） measure 2. （估量） estimate; size up
  • 測量 : measure; survey; gauge; meter; measurement; measuring; surveying; mensuration; metering; gauging;...
  1. The structure of the testing platform is described, and the experiment content and principles are given in detail. the transmission error curves and space frequency curves are emulated. the circuits of rotor part and software are finished

    本文介紹了實驗臺的整體結構，實驗內容的設置和各實驗的工作原理，模擬了傳動誤差曲線及其空域頻譜圖，詳細闡述了轉子測量的電路設計、下位機程序設計和上位機的軟體設計。
  2. Calculation and spectra analysis of horizontal acceleration corrections for airborne gravimetry

    航空重力測量中水平加速度改正的計算與頻域分析
  3. Time - domain measuring method for wide - frequency transfer characteristic of potential transformer

    電壓互感器寬頻傳遞特性的時域測量方法
  4. The model - based parameter estimation ( mbpe ) is firstly applied to the near - field measurement in this thesis to deal with the near - field sampling data in space and spectrum domains respectively

    本文首次在天線近場測量中採用了基於模型的參數估計技術，在空域和頻域內分別對近場采樣的數據進行處理。
  5. To increase the bearing accuracy of amplitude - comparison, the multi - channel system was chosen, the angle of reaching of moving antenna pattern serial was estimated from the frequency domain using the phase - delay estimating method, and at the same time, the selection of antenna, quantization of signal and touch switches were optimized in concrete engineering practice, and so the requirement of the index was satisfied

    為提高比幅測向的精度，選用多通道體制，採取相位延時估計法從頻域來估算移動天線方向圖系列的達到角，同時在具體的工程實現上對天線選取、信號的量化、去摸開關等進行優化，從而滿足指標要求。
  6. Due to the short distance among the planes which fly in a group, the conventional low resolution radar can not distinguish them in both distance and azimuth ? if we use the technology of isar to resolve the difference among doppler frequency of the targets and obtain a fine resolution cross - cross image, we may separate them, but a long time of coherent processing is needed <, for the formation targets, it can be approximately divided to rigid body and nonrigid body, so for the formation targets, that can be regarded as rigid which has a relative position and an identical movement, can be approximately considered as a large target, and be compensated by translational phase with the rule of minimum entropy, but for the most those cannot accord with the approximation of rigid, being the doppler - frequency of the aim is linear changed, by the relax method with short data, increases the resolving performance of multiple target to the aim in the frequency domain, since cross - range resolution is based on the accumulative time, so it is greatly improve the resolution to formation targets by the instant cross - range image which produced by radon - wigner transformation

    低分辨isan成像及干涉技術應用研究一因此直接無法分辨編隊目標的架數，我們借鑒isar的技術，通過較長時間的相干積累，在多普勒頻域上對目標進行分辨。而對于編隊目標，可分為近似剛性的多目標和非剛性的多目標，所以對于可以近似為剛體的編隊目標相對位置固定，運動方式一致，可以近似看作一個大目標，採用最小墑準則對平動相位的進行補償，但是大多數並不滿足剛體近似的編隊目標，由於目標在相干積累時間的多普勒頻率近似呈線性變化，通過對較短數據利用relax的時頻分析方法，提高了頻率域上目標分辨的性能。由於橫向解析度取塊于橫向積累時間，所以利用radnwigner變換得到瞬時的一維橫向距離像大大提高了對編隊目標的分辨，對模擬和實測數據的大量分析結果表明此方法的有效性和可行。
  7. Thirdly, in the environment of labview, several kinds of vis used for sensor signal test are designed, including wave generation, time domain measurement, filter disposal, frequency analysis, etc. after that, wavelet analysis in the application of one - dimensional signal de - noise is studied, threshold and translation invariance wavelet de - noise are realized, and wavelet de - noise vi for zero drift signal of the fiber optic gyro in fcs is designed using labview

    接著，在labview環境下開發了多種用於傳感器信號測試的虛擬儀器，具有波形發生、時域測量、濾波處理、頻譜分析等多種功能。隨后，研究了小波分析在一維信號消噪中的應用，實現了labview環境下的閾值法和平移不變量法小波消噪，並利用labview設計了飛控系統中光纖陀螺零漂信號的小波消噪儀。
  8. A sort of spot dynamic balance test system is developed using singlechip as a core apparatus. it can do single - face and double - face dynamic balance test, present result of unequilibrium and its phase position, can test rotate speed and vibration, can show the time - field and frequency - field picture of gain signal

    本課題是利用單片機作為核心器件研製的一套可應用於現場的動平衡測試系統。該系統能完成現場動平衡單面或雙面測試，實時給出不平衡量的大小和相位。也可單獨測轉速和振動，還能對採集到的振動信號作時域、頻域圖顯示。
  9. But, the measured - data is a very great quantity and every data contain all data of 1 - 25 harmonic, measured time can have hours to days. the count by hand is very heavy and over - elaborate, sometimes the statistics results is error. it won " t reach the analysis purpose and don " t obtain the curve of harmonic oscillation characteristic in a row frequency range

    可是，測試數據經常是大量的，每一組數據又包含從基波到25次諧波的所有數據，測試時間可能是幾個小時，有的甚至是幾天時間，這樣的工作量由人工完成是非常繁重的，又是非常繁瑣的，有時還統計不出正確的數值，起不到應有的測試分析目的，更無法獲得連續頻域內的諧波諧振特性曲線。
  10. The tested signals is entered into the digital oscillograph and output the analog signals. in the base of known patameter of time domain, the signals is transform by fft

    將測試信號首先經過數字示波器重現模擬信號，在已知時域參數的基礎上，對信號進行fft變換，最後實現對信號的頻域測量。
  11. Verification regulation of wide band frequency stability measurement set in time domain

    寬頻帶頻率穩定度時域測量裝置檢定規程
  12. Therefore, aiming at the existent static and dynamic error of fcs sensor, the sensor characteristic compensation subunit is designed in the environment of labview using vi technique. the sensor signal disposal platform is also developed to realize the time domain measurement, frequency domain analysis, long - distance transfer and network release, etc. firstly, the static characteristic and nonlinear error of the sensor are analyzed

    為此，本文針對飛控系統傳感器存在的靜態和動態誤差，利用虛擬儀器技術在labview環境下設計了傳感器性能補償環節，開發了傳感器信號處理平臺，對信號進行時域測量、頻譜分析、小波消噪、遠程傳輸和網路發布等。
  13. There are so much virtues in the measurements in frequency - domain. the real - time frequency - analysis is few researched in our country. this is very important for frequency - measurements exerting in the engineering

    頻域測量有很多優點，目前國內對實時頻譜分析的研究還比較少，但是實時頻譜測量在工程上具有很大的重要性。
  14. The second part of this paper introduces the study of frequency and time measurement techniques

    本文在第二部分詳細介紹了在時間頻率測量領域內的研究。
  15. According to the present problems and developing tendency of hydraulic turbine governor, four main issues of this field are studied in this paper. the content include hydraulic control system, frequency measurement unit, stability of the discrete control system, optimization of control parameters and self - adjusting pid control strategy based on fuzzy logic. several main achievement and results are obtained and shown as follows : the electric - hydraulic pilot valve driven by step - motor is firstly proposed, which solves the problem that the electric - hydraulic converter of hydraulic turbine governor hydraulic servo is prone to be stuck and blocked and improves the systemic stability greatly

    本文根據水輪機調節領域存在的問題和發展趨勢，對水輪機調速器的液壓控制系統、頻率測量環節、離散調節系統穩定性與調節參數最優整定以及適應式參數自調整pid控制策略進行了研究，得到以下主要成果和結論：首次提出了採用步進電機驅動的步進式電液引導閥，從根本上解決了水輪機調速器電液隨動系統中存在的電液轉換元件發卡、堵塞問題，使電液隨動系統的可靠性大大提高。
  16. A high - resolution method for frequency measurement is strongly introduced in the paper, which is aim at detecting the frequency of regular and binary phase coding modulated pulse signals with high frequency precision. considering the popularity of linear frequency modulated ( lfm ) signal in electronic systems, this paper then referred a radon - stft arithmetic to calculate the carry frequency of lfm signal. both of these methods referred above are implemented in the signal if detection software

    針對常規脈沖調制信號和脈內二相編碼調制信號，本文提出一種高精度的數字化測頻方法，以提高信號載頻測量精度;線性調頻信號作為一種典型的非平穩信號在各種領域應用十分廣泛，但對其載頻的數字化測量比較困難，本文利用圖像處理中的radon變換與信號時頻分析中的線性變換相結合的演算法來完成對其載頻的測量。
  17. " modulation domain " ( mod ) is a plane domain which is consisted of frequency and time of signals. it is a necessary field to measure signals in three - dimension space of signal ( time domain, frequency domain and modulation domain )

    調制域是由信號的時間和頻率兩個軸構成的平面域，是對信號進行三維（時域、頻域、調制域）測量不可缺少的一個測試域。
  18. The angle measurement technology based on gps is introduced briefly. simulation with matlab and psasp, and the validity of prony method based on wide - area measurement through gps for power system low frequency oscillation is shown in this paper. 3

    簡要介紹了基於gps的功角測量技術和prony分析方法，提出利用基於廣域測量的prony方法分析電力系統低頻振蕩的思想，並利用psasp和matlab工具大量的模擬計算驗證了基於gps廣域測量系統的prony方法在研究低頻振蕩問題上的有效性。
  19. In this paper, fsk signal of power remote is analyzed in time - domain and frequency - domain. based on the analysis, a new method to detect carrier frequency of fsk signal named time - domain joint and modern power spectrum estimation is put forward

    對電力遠動通道fsk信號進行了時域和頻域分析，在此基礎上提出了一種新的fsk信號載波頻率測量方法?時域拼接結合現代功率譜估計的方法。
  20. Frequency domain measurement of multimode optical fiber information transmission capacity

    多模光纖信息傳輸能力的頻率域測量
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