時差法 的英文怎麼說

中文拼音 [shíchāfǎ]
時差法 英文
tofd
  • 時 : shí］Ⅰ名1 （比較長的一段時間）time; times; days:當時at that time; in those days; 古時 ancient tim...
  • 差 : 差Ⅰ名詞1 （不相同; 不相合） difference; dissimilarity 2 （差錯） mistake 3 [數學] （差數） differ...
  • 法 : Ⅰ名詞1 （由國家制定或認可的行為規則的總稱） law 2 （方法; 方式） way; method; mode; means 3 （標...
  • 時差 : 1 [天文學]（平太陽時和真太陽時的差）equation of time2 （不同時區之間的時間差別）time difference時...
  1. The methods of direct measurement with low precision such as frequency and time interval methods and the methods of indirect measurement with high precision such as beat frequency method, dual mixer time difference method and frequency difference multiplying method are supported on the platform. the fundamentals of each method are studied. the quantization error is analysed and the illustration is given for each method

    該平臺支持直接頻率和時差法兩種較低精度的測量方法以及雙混頻時差法、差拍頻率法和頻差倍增法高精度的簡接測量方法，本文研究了各種測量方法的原理，對各種測量方法的量化誤差作了分析，並給出具體的實例。
  2. We have to use some other methods to measure the luminosity or equivalently the absolute magnitude of the cepheid variable. since we can readily measure the apparent magnitude of a cepheid variable, to measure the luminosity means measuring the distance. we use some distance measurement methods, for example, parallax, to determine the relation

    要弄清這個關系，我們要知道不同造父變星的光度和光變周期數據，量度光變周期當然不是問題，但要得知一顆恆星的光度，我們首先要得知它的距離，這時便須藉助好像視差法等其他量度天體距離的方法。
  3. The merits and demerits of frame differential method in motional detecting were analyzed and optimized

    詳細討論了運動檢測中幀差法的優缺點，並設計了快速實現演算法，同時提出了對原有方法的改進。
  4. The specific research methods are listed : 1. matched filter taking the max ouput snr as the best rule correlates nonstop divided signal and divided echo to detect low snr target signal. then all one dimension divided correlation outs and done fft in portrait to leach interferential signal such as static or low rate mussy meaves, many pathway echo and so on and to take target ' s time difference and doppler frequency that combine parameters that target ' s direction taken from antenna and so on to implement target ' s orientation and tracking

    具體研究方法如下： 1 、採用以輸出信噪比最大為準則的最佳匹配濾波器來對分段的參考和目標信號作相關處理來檢測低信噪比目標信號，然後對一維分段相關輸出組作縱向傅立葉變換來濾除靜態或低速的雜波、多徑回波等干擾信號，並提取目標的時差和多普勒頻率，再結合由天線獲得的目標方向等參數，就可以實現目標的定位和跟蹤。
  5. This index then is decided to contain the fluctuation of both income and consumption instead of focusing only on one factor, and it should be measured by the squared resid of the time serial simulation of variables, rather than commonly used group variations or other indirect indices, which are quite different from formal researches. besides, the accuracy of the ecm model will be greatly underlined

    在計量方法上，筆者分析了各種方法的利弊，最終放棄了前人常用的組間方差法、間接變量法和主觀報告法，而使用了更切合經濟含義且更具相關性、更客觀的殘差平方（對變量進行時間序列模擬后得到，稍後會作取對處理） 。
  6. On the basis of algorithm analysis, from aspects of detecting principle, detecting steps and computer emulation, the authors expatiate how to use wavelet transform to detect backscatter signals ' time difference and find the fantastic point of backscatter signal ( the time point when backscatter signal reaches ), finally to find the location of the object being detected

    在演算法分析基礎上，從檢則原理、檢測步驟、計算機模擬方面闡述如何利用小波變換檢測回波信號時差，以確定回波信號的奇異點（回波信號到達時間點） ，進而確定被探測目標的位置。
  7. If you are travelling to a destination several time zones away, you will probably experience jet lag as the body internal circadian clock is only able to reset itself at a rate of about 1 hour per day

    如您于飛行旅途中須橫越多個時區time zone ，您有可能因身體內在時鐘又稱生物鐘無法適應外在時間突變，而衍生飛行時差反應。
  8. The precious method to simulate earthquake accelerations is not perfect because the points on the interface still move according to the simulated acceleration when the points " motion ends, which is obviously a paradox. if the points " velocity is not zeroized, soil ' s damage value based on shear stress ' s peaks or extrema is overestimated in multi - point input analysis. the new method ' s rationality is analyzed

    以往人工合成的地震波在地震結束時即地震加速度恆為零時速度不為零，這與合成地震動是「模擬輸入點從靜止到運動再到靜止的運動過程」這一要求不一致，同時導致時域內多點輸入分析時差動力過大以至算出的損傷值過大，於是本文提出了簡易的地震動速度歸零化方法並分析了其合理性。
  9. Ssp inversion based on ray arrival time difference in shallow water is presented and related algorithms are developed. the feasibility and practicability of the algorithms are studied by using the experimental data in the east china sea

    提出了一種基於特徵聲線的到達時差反演淺海聲速剖面的方法，推導和論證了到達時差反演淺海聲速剖面的演算法。
  10. According to these accomplishments, several techniques are expounded emphatically in this paper, including 3d refraction statics, coherent noise suppression by prestack wave field separating ( prestack fx noise attenuation ), 3d prestack multiple domain random noise attenuation, multiples attenuation, nmo of unsymmetrical hyperbola, dynamic replacement of wave equation, surface - inconsistent residual static, super bin stacking, poststack depth migration and prestack depth migration. all the techniques have been applied in seismic processing of 2d, 3d and wide - line profiling and obtained good results

    本文根據項目組研究成果，重點閘述了三維折射波靜校正技術，疊前波場分離相干噪音壓制方法（疊前fx去噪） ，疊前三維多域隨機噪音衰減技術，多次波衰減技術，非對稱雙曲線動校正技術，波動方程動態替換技術，非地表一致性的剩餘時差靜校正技術，超面元迭加處理技術，疊后深度偏移處理，疊前深度偏移處理等。
  11. A method of timing accurate to millionths of a second is needed to find the distance of objects

    為求出物體的距離，需要一種精確到誤差不出百萬分之一秒的測時方法。
  12. The fruits of emulational research are obtained : 1 the method of divided planar correlation deal with wonderfully and can detect the target information of tv sound fm signal about time difference and doppler frequency with this understanding of - 20db snr

    模擬研究成果： 1 、分段二維相關處理方法效果不錯，能在- 20db信噪比情況下，可靠地檢測到電視伴音調頻目標信號的時差與多普勒頻率信息。
  13. The third chapter is one of the most innovative parts of this thesis. grey relational analysis of grey system theory is introduced, and the theory is applied to index time difference analysis. meanwhile, grey wave forecasting of grey system theory is explained, and the method is applied to economic cycle index forecasting

    第三章介紹了灰色系統理論中灰色關聯分析的方法，並將該方法應用到指標時差分析中；闡明了灰色系統理論中灰色波形預測的方法，並將該方法應用到經濟循環指數預測中。
  14. The localization of mobile object is accomplished by nonlinear kalman filter. based on the formulae of localization errors, the rules are analyzed, which describe the relationship between the localization precision and the constellation factors, such as constellation shape, the height of satellite. the method to design the constellation is presented with the help of these rules

    論文利用非線性kalman濾波設計了三星時差定位星座對運動目標的定位定速演算法；根據定位誤差的解析公式，利用模擬方法分析了三星時差定位星座的星座構型和衛星高度等因素對定位精度的影響規律，並依據定位精度影響規律，研究了三星時差定位星座的星座設計問題。
  15. Finally the localization performance of the new estimator and the ls estimator when one station is raised and the traditional four station three tdoa localization estimator were compared

    比較了採用單站升高條件下新定位演算法與最小二乘定位演算法以及傳統四站三時差定位演算法的定位性能。
  16. Two methods to position one fixing object are discussed, one makes use of data observed in one single time, the other makes use of data observed in one period of time

    本文討論了三星時差定位星座對固定目標定位的兩種定位方法：利用單個觀測時刻數據的定位和利用多個觀測時刻數據的定位。
  17. Improvement on transit - time ultrasonic flowmeter

    時差法超聲流量計的改進
  18. The methods of direction finding mainly include maximum ( minimum ) signal method, amplitude - comparison method, phase - comparison method and time difference method

    測向的方法主要有最大（最小）信號法、比幅法、比相法、時差法。
  19. According to the high dispersedness and low precision of measurements when using the traditional time difference method in small diameter and low flow rates conditon, this paper brings forward a new method based on high - speed data acquisition technique. the time difference comes out accurately with high resolving ability of time by using the method and the signal processing algorithms. the developed ultrasonic detection system is composed of two ultrasonic detectors, a transmitting and receiving ultrasonic unit, a high - speed data acquisition unit and a computer

    本文針對傳統的時差法在小管徑、低流速測量時，具有測時結果分散性大、測量精度受計數頻率的影響大等不足，創造性地把高速數據採集技術應用在超聲波流量、壓力測量上，用信號處理演算法求時差，使時差成為一個統計量，有效地克服了超聲波傳統時差法測量精度差、不能測量小管徑、低流速流體流量的缺點，提高了時差測量的解析度和精度。
  20. Theoretic location - error analysis of the method of three stations time of arrival by nemp

    三站時差法定位理論誤差分析
分享友人
分享到 Line

分享到臉書