起伏數據 的英文怎麼說

中文拼音 [qǐfúshǔjù]
起伏數據 英文
fluctuating data
  • 起 : 起Ⅰ動詞1 （站起; 坐起） rise; get up; stand up 2 （取出; 取走） draw out; remove; extract; pull 3...
  • 伏 : Ⅰ動詞1 （身體向前靠在物體上; 趴） bend over; lie prostrate 2 （低下去） subside; go down 3 （隱藏...
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 據 : 據Ⅰ動詞1 （占據） occupy; seize 2 （憑借; 依靠） rely on; depend on Ⅱ介詞（按照; 依據） according...
  • 起伏 : rise and fall; ups and downs; heave rolling; undulate; fluctuate
  • 數據 : data; record; information
  1. Finally, the ocean geoid of china is worked out with about six months topex / poseidon data

    最後用20個周期的topex / poseidon數據解算出了中國局部地區海洋大地水準面起伏。
  2. As one of frame data of national spatial data infrastructure, digital elevation model excels contour line. it can express continuous gurgitation of ground, and it can also carry out relevant mathematical analyses and imitation, so it is applied broadly in various fields at present

    =數字高程模型dem是國家空間數據基礎設施的框架數據之一，其彌補了等高線的不足，既能表示地面的連續起伏變化，又適合作相應的數學分析和模擬，現在已在各個領域得到了廣泛的應用。
  3. Applying the basic theories of spatial data mining and geomorphology, taking the loess plateau of north shaanxi province, china as the research area, this dissertation explored the theories and systematic structures of geomorphologic data mining and acknowledge discovery from dems, ascertained the systematic structures of topographic factors and synthetic topographic acknowledge, as well as systemically summarized mining algorithms from dems. the author pa id more attention also to analyze the principle and algorithm of flow length, curvature, relief, the earth ' s surface incision and gully density. in this research, the elementary constitutes and mining algorithms of regional character acknowledge in the loess plateau were probed

    本研究在廣泛總結前人研究成果與研究經驗的基礎上，利用空間數據挖掘和地形地貌學的基本理論，以陜北黃土高原多地貌類型區為實驗樣區，以1 10000比例尺dem為樣本數據，探討了dem中地形地貌數據挖掘與知識發現的理論方法和體系結構；確定了宏觀和微觀地形因子、地形綜合特徵知識的體系結構；系統總結了dem基本地形因子的提取演算法，並重點對坡長、曲率、地形的起伏度、切割深度和溝壑密度因子提取的原理與演算法作了深入的分析；提出了黃土高原地區區域特徵知識的基本構成及其系統完整、科學可行的挖掘提取演算法；擴充了arcviewgis軟體平臺中dem空間分析的基本功能；實現了以delphi7 . 0為平臺的地形信息輔助挖掘系統的設計與開發；完成了對黃土高原多地貌類型區（樣區）地形信息空間分異特徵的分析。
  4. Mapping of spatially explicit distribution of solar radiation. using the digital elevation model ( dem ) data as input, the distribution of extraterrestrial radiation and possible sunshine duration from january to december were mapped both for chongqing ( resolution of 100m x100m ). integrated with kt and kb, the distributions of direct and diffuse radiation were also mapped for long - term mean

    太陽輻射空間分佈研究利用dem數據，完成了重慶市100m 100m各月天文輻射和可照時間的空間制圖；結合晴空指數、直接透射率的模擬結果，分別完成了氣候平均狀況下重慶市100m 100m的起伏地形下各月太陽直接輻射、散射輻射空間制圖。
  5. Based on the geometry between sunshine ray and real terrains, the distributed models were developed to simulate the extraterrestrial radiation and possible sunshine duration over rugged terrains respectively. according to the principles of direct and diffuse radiation on tilted surfaces, the distributed models to estimate the direct and diffuse radiation over rugged terrains were developed also. the proposed models were proved to be able to treat volumes of data and are applicable to satellite image processing platforms or geographic information system ( gis )

    起伏地形下太陽輻射分散式模型研究根據太陽光線與實際地形之間的幾何關系，建立了起伏地形下天文輻射、可照時間的分散式估算模式；依據坡地直接輻射和散射輻射機理，分別建立了起伏地形下直接輻射、散射輻射的分散式估算模式；建立的分散式模式計算結果可靠，可進行大數據量處理，適用於遙感圖像處理、地理信息系統等數據處理平臺。
  6. Since the suggested method makes a significant improvement in wind speed, it is more suitable for wind field estimation over complex terrain than other methods which only concerns the effect of distance. then we calculate the wind change with evaluation, last we can conclude the wind abase the hilly terrain, we find the wind in westward and center plain is much smaller than other area. while the wind in northward hilly area is much bigger with the hilly arising. the wind of chongqing is the biggest period in spring ( april ), the smallest period in winter ( january ), the wind in summer ( july ) is bigger than its in autumn ( october )

    本文利用重慶及其周邊地區的常規氣象站的1951 ? 1980年30年的風速平均資料，針對復雜地形風速診斷，以地理信息系統為數據處理平臺，根據重慶1 ： 25萬dem數據，來獲得重慶市實際復雜地形的高程，提出了一種適合於起伏地形的權重內插方法，通過引入一個表示地形起伏變化程度的因子，構造了一種新的權重函數，來處理復雜地形上的風速，通過與只考慮距因素同反平內插方法比較發現，本方法更適合在起伏地形條件下使用；然後根據經驗公式在地形上進行計算，得出重慶地區起伏地形下的風速分佈；得出重慶市的西部、中部平原地帶風速較小，而北部山區隨海拔高度升高風速也較大；重慶市風速最大時期為四月份，冬季一月份最小，夏季（七月份）大於秋季（十月份） 。
  7. Experimental results show it can find the rough toa range in order to lessen the computation burden, while getting rid of glints and disturbing components attached to the phase difference signals, the paper suggests a data compression procedure combined with dynamic smoothing

    為了減小擬合計算量並盡量濾除疊加在相位差序列上的干擾起伏，採用了數據壓縮結合滑動平均的預處理方法，並對該方法的正確性和有效性進行了方差分析驗證。
  8. In fast axis the divergentce of each beam is 0. 28o, in slow axis is 1. 4o, the area of field from the end of ld stack 20cm is 42 25mm2, average wave is 9. 3 %. so, it can meet the requirement of pumping, and the effect is fairly good

    具體數據為:各輸出光束在快軸方向的發散角為0 . 28o ，在慢軸方向的發散角為1 . 4o ，輸出光場在距ld面陣發射端面20cm處的面積為42 25mm2 ，平均波紋起伏為9 . 3 % ，可見整形效果較好
  9. And the text manages to present an emulate arithmetic by using collection and disposal of several stylebooks of power undulate experiment data

    通過對幾個樣本功率起伏實驗數據的採集、處理，力圖找出一種模擬演算法，使得給定任意波束寬度能夠模擬出信號的功率起伏。
  10. In the process of research, the paper made the model according the relationship between the beam and real topography considering the mountains " gradients and directions. later the paper calculated the distribution of astronomical radiation of chongqing

    在重慶地區天文輻射空間分佈研究中，根據太陽光線與實際地形之間的幾何關系，利用dem數據，在充分考慮山地坡度、坡向和遮蔽等影響的基礎上，建立了起伏地形下天文輻射分散式估算模型。
  11. The visualization applied program can be used to render accurately and quickly the graphics of the 3d local gravity and magnetic sources and the terrain on the condition of complex terrain. the program can uncover the spatial extension law of the 3d local gravity and magnetic sources, the user can decide to terminate the boundary inverse or modify the parameter and continue the inverse according to the 3d graphics

    局部重磁場源可視化應用程序能夠準確而快速生成復雜地形條件下的三度異常源和起伏地形的真實圖形，可視化應用程序能夠顯示局部重磁場源的空間分佈規律，用戶可根據生成的三度體圖形，確定是結束邊界反演還是修改相關參數，重新進行邊界反演。
  12. This dissertation is mainly about regional land resource evaluation and land use analysis based on g1s and soter ( soil and terrain spatial and attribute database ) database. the research content is composed of three parts. the first is medium scale soter database study, in this part, the new landform indexes are studied, which are elevation classification, slope classification and relief index classification

    在邯鄲地區1 25萬soter土壤土地數據庫建立方面，主要探討了適用於該比例尺的主地形體指標，提出海拔高度分組指標、坡度分組指標和地勢起伏強度分組指標，並利用上述三個指標組合劃分出邯鄲地區中坡度丘陵（ sh ） 、低坡度山前臺地（ lm ） 、山谷（ lv ） 、中坡度山體（ sm ） 、山前傾斜平原（ lf ）和沖洪積平原（ lp ） 6個主地形體組分。
  13. The text compares experiment data with the selected theory direction fig and modifies the equal value and standard difference of each segment i n the se i ected wave w i dth d i r ect i on f i g by us i ng the re i at i ve i y between the statistical equal value and standard difference, then makes use of the controls the correlation time to real ize the signal undulate

    通過實驗數據與選定的理論方向圖的對比分析，利用統計出的均值和標準差的相對量，對給定波束寬度的方向圖每段的均值和標準差進行修正。然後利用相關特性，通過控制相關時間，以達到能夠控制信號起伏的目的。
  14. The underwater acoustic channel is very complex where cochannel interference, doppler frequency offsets, narrow bandwidth and time and frequency selective deep fades obstructs the development of high speed and fidelity underwater data transmissions. thus projects of high speed and fidelity underwater signal transmissions become a hotspot in the fields of world academic circles. the conventional serial communication must use adaptive equalizer to combat the multipath in real - time

    海洋水聲通道是一種極其復雜多變的時-空-頻變參通道，其通道窄，強多途干擾，信號起伏衰落嚴重，一直是水下信息可靠高速傳輸的主要障礙，因此如何在水聲通道中高速率準確地傳輸數據，就成為世界性的熱門課題。
  15. Undulate acquisition surface is one of the main properties of the seismic datasets from western china. based on the synthetic source record migration method and wave stack principle, a method of migrating directly from the undulate surface is presented and tested

    結合我國西部地震資料的特點，針對起伏地表情況下的地震數據成像問題，提出了與合成震源記錄偏移方法相應的成像方法以及基於共聚焦點技術的基準面向上校正方法。
  16. The way reduces the error. this paper also particularizes the prime parameter of the echo - - radar cross section ( rcs ) which is influenced by many factors. considering the fluctuation of rcs and the modulation by the radar antenna, the paper contains both slow and quick fluctuating targets

    兩種回波的模擬數據表明：模擬結果與理論模型的結論符合很好，能夠滿足運動目標回波幅度分佈特性的要求；並且在多數情況下，雷達探測到的目標都是慢起伏目標。
  17. Since the effects of turbulent atmosphere is prominent, this thesis concentrates on the effects of the turbulent atmosphere on the laser beam propagation in the atmosphere. the atmosphere refractive index model, especially refractive index fluctuation, power spectrum, phase spatial structure constant are introduced in the following and the specific structure function is achieved

    根據大氣折射率模型，以及折射率起伏功率譜密度和相位空間結構常數，得到具體的結構函數；通過長程情況下的馬爾科夫近似，得到了互相關函數，對數振幅和相位協方差函數。
  18. Solar radiation models of different temporal and spatial scales were established by using ground observed data from meteorological stations. a series of distributed models were developed based on principles of direct and diffuse radiation on tilted surfaces and integrated with gis software. using dem data of chongqing, the distributions of direct and diffuse radiation over rugged terrains were simulated

    本文利用重慶及其周邊地區的日射站和常規氣象站水平面觀測資料，建立不同時空尺度的太陽輻射估算模型；依據坡地直接輻射和散射輻射機理，以地理信息系統為數據處理平臺，建立起伏地形下太陽輻射分散式估算模型；根據重慶1 ： 25萬dem數據，對重慶實際復雜地形下太陽直接輻射和散射輻射進行了數值模擬，為起伏地形下輻射估算及其他地表氣象要素的空間擴展提供有益的嘗試。
  19. This paper study the greedy snake algorithms for the clutter tracking. it introduce the energy function of basic snake model and analyze the different kind of snake discrete energy function. it study on the method which use the pretreatment combining the sobel and grads arithmetic operators. the astringency of snake external energy was satisfied. this paper analyze the influence of tracking precision and running time for the preliminary border width, it also study on the tracking effect of different distributing and intensity. it is important to the next work

    針對雜波數據的強度起伏大的特點，提出了結合sobel運算元和梯度運算元的預處理方法，滿足了貪婪snake外部能量的收斂要求，在真實數據和模擬樣本條件下，分析了初始邊框間隔對跟蹤精度、運行時間的影響，以及不同分佈、不同強度雜波樣本的跟蹤效果，為后續的工作打下基礎。
  20. This text analyses experiment data and emulate undulate mode ! of the signal based on statistical character from the point of matrix and relativity

    本文通過對實驗數據的分析，基於實驗數據的統計特徵量，從矩和相關性這兩種統計量來模擬信號的起伏模型。
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