測站差 的英文怎麼說

中文拼音 [cèzhànchā]
測站差 英文
station error
  • 測 : 動詞1. （測量） survey; fathom; measure 2. （測度; 推測） conjecture; infer
  • 站 : Ⅰ動詞1 （站立） stand; be on one s feet 2 （停下來; 停留） stop; halt; pause Ⅱ名詞1 （停車點） st...
  • 差 : 差Ⅰ名詞1 （不相同; 不相合） difference; dissimilarity 2 （差錯） mistake 3 [數學] （差數） differ...
  1. The result has the reference significance for choosing geoelectric observation location and observation data error correction

    分析結果對地電觀測臺站選址、及其觀測數據誤差校正具有參考價值。
  2. Simulation of hypsometry accuracy using 4 - station tdoa

    四站時差定位測高精度的模擬研究
  3. Because of adopting fixed groundwork, position of every observation station is immovability, agility of instrument is poor, singular fixed stand can not meet the need of modern equipment

    由於採用固定地基的方式，各觀測點的位置不動，儀器設備的機動性差，單一的固定站點已不能滿足現代化的裝備要求。
  4. In the meantime, the tolerance limit of coordinate difference in the station for site testing is given and it is possible to test total station coordinate trave rse in site

    同時，根據該原理，給出了測站坐標差限值，從而實現了全站儀坐標導線的現場檢核。
  5. According to the engineering practice, the theoretical basis and method that survey directly the horizontal distance and height difference by the total station system as fourth grade and below fourth grade control network are put forward instead of surveying slant distance and zenith distance

    摘要根據工程實踐，提出了用全站儀直接測量平距、高差來代替測斜距、天頂距作四等及四等以下控制網測量的理論依據和方法，並以張河灣抽水蓄能電站施工控制網為例進行了比較計算。
  6. Backed up by the soplat theory based on particle kinematics, the second chapter of this paper presents with analysis and simulation of several single observer passive measurement models, which uses such relative movement parameters as bearings changing rates and centrifugal acceleration information on the basis of bearings measurements. in the third chapter, the observability of location respectively using bearings and its changing rates information and centrifugal acceleration information is analyzed, and its observable condition is got. the fourth chapter puts forward the modified covariance extended kalman filtering ( mvekf ) against the defect of traditional extended kalman filtering ( ekf ), whose performance is simultaneously compared in the chapter with the performance of ususal tracking algorithm such as ekf, mgekf, iekf by computer simulation

    在近年來提出的基於質點運動學原理的單站無源定位理論基礎上，本文第二章提出了幾種在角度測量的基礎上增加角度變化率及相對運動的離心加速度等運動學參數的單站無源測量模型，並對它們進行了分析和模擬；第三章分別對利用角度及其變化率信息定位和利用離心加速度信息定位的可觀測性進行分析並得到了相應的可觀測條件；第四章針對傳統擴展卡爾曼（ ekf ）方法的缺點，提出了一種修正協方差的擴展卡爾曼濾波（ mvefk ）方法，並將其和ekf 、 mgekf 、 iekf等常用的單站無源定位濾波方法進行了性能模擬比較；第五章通過引入雷達機動目標跟蹤方法和模型，提出了利用角度及其變化率對機動輻射源跟蹤的多級噪聲自適應方法和imm方法；第六章主要對角度變化率和離心加速度參數的獲取技術進行了研究，提出了幾種高精度測量脈沖序列多普勒頻率變化率的方法。
  7. A reasonable method to adjust observed coordinate value is put forward for total powerstation traverse in this paper. its validity and feasibility are proved by example

    本文依據誤差理論，針對全站儀導線提出了一種合理的對其坐標觀測值進行平差的方法，並用算例驗證了該方法的正確性與可行性。
  8. Aiming at the study actuality of fan performance monitoring system and analysis of fan performance curve changes affected by inlet - box and the different fixed - angles of guide blades in the course of installation, a fan flow monitoring model based on rbfnn in whole flow zone was established in this thesis. in the model, the method of no throttle and fan performance curve were used as basis. and on the basis of that model, fan performance curves of 4 - 73no. 8d were approached with experimental data of different speed, different opening - angles of guide blade and different resistance of pipeline, the precision and the error law of model were studied

    本文針對電站風機性能監測系統研究較少的現狀，在實驗的基礎上分析了現場加裝進氣箱和由於安裝造成的導流器葉片開度不一致對風機性能曲線的影響，並在此基礎上採用無節流方法測量流量，以風機調節性能曲線為依據，建立了基於徑向基函數（ rbf ）神經網路的風機流量全程監測模型；以實驗室4 - 73no . 8d離心風機為研究對象，探討了rbf神經網路差壓模型在變轉速、變導流器開度和變管網阻力等工況下的應用精度和誤差分佈規律；最後用visualc + +語言開發了風機性能在線監測系統。
  9. Conventional single - observer passive locating methods are low in speed and precision. moreover, corresponding locating precision is sensitive to direction measurement errors, which puts forward high demands on measurement equipments impersonally

    傳統的單站無源定位方法總的來說具有定位時間較長、定位精度較低的特點，並且定位精度對方向測量誤差非常敏感，在客觀上對測量設備提出了較高的要求。
  10. During the course of the research, the criterions of the interpolation effect are mean error ( me ), mean absolute error ( mae ), root mean squared interpolation error ( rmse ) and the difference of mean square deviation between the measured and the estimated surface air temperature. the conclusions are as follows : ( 1 ) by contrasting the gaussian weighted model associated with the error modification with the gaussian weighted model, the error modification is proved to considerably ameliorate the precision of spatial interpolation ; ( 2 ) on the base of the gaussian weighted model, taking altitudinal effect into account can reflect the trend in which temperature changes according to the topographic altitude and may ameliorate the precision of spatial interpolation correspondingly and apparently, which indicates that topographical effect on the preciseness of spatial interpolation can not be disregarded in terms of the region with complicated topography ; ( 3 ) the map of daily surface air temperature distribution, using the modified gaussian weighted model a and b, can accurately reflect the temperature - changing - with - topographical - altitude trend. among them, the better is the model a, whose me is below 0. 03 ?

    在此過程中，採用平均誤差（ me ） ，平均絕對誤差（ mae ） ，插值平均誤差平方的平方根（ rootmeansquaredinterpolationerror ，簡稱rmsie ） ，插值前後測站要素值的均方差（ meansquaredeviation ，簡稱msd ）差值作為判定插值效果的標準，得出如下結論：通過高斯權重法與結合逐步訂正的高斯權重法的對比，說明結合逐步訂正方案的高斯權重法可大大提高地面日氣溫的插值精度；在高斯權重法中加入海拔影響項可以反映出溫度隨地形高度的變化趨勢，同時也能較大地提高地面日氣溫的空間插值精度，說明在地形復雜的區域，地形影響在插值精度中是不可忽略的；對于高斯權重法的兩種改進方案得到的地面日氣溫分布圖都能很好地反映出表面大氣氣溫隨地形高度的變化趨勢。
  11. Observed stream flow at 17 hydrological stations along the main river was used to calibrate the model

    模擬總水量同實測總水量的相對誤差在5 %以內，其中有11個站效率系數（確定性系數）在。
  12. In this dissertation, we studied the tcra1101plus total station position system, which introduced the principle and characters of the instrument ' s closed loop tracking system. also we explained the cause of prism ' s position error and brought forward mathematic model to correct, moreover, the good results has been drawn form the expenriments. the kinetic survey system have been realized, which the sampling rate attain more than 5hz and the position precision can be less than 2mm on condition that targeted - point moving slowly at the velocity below 2cm / s. having finished the survey system to examine whether the fine - tuning stewart platform in good status, we have finished mensurating the position reference of the fine - tuning stewart platform and the offset of the prism

    在此基礎上研製了多臺儀器在線控制高頻采樣動態跟蹤測量系統，采樣率大於5hz ，在跟蹤小於2cm / s低速運動目標時，測量精度好於2mm ；完成對饋源二次精調系統的檢測，包括對二次精調平臺位置基準的標定和觀測棱鏡偏心差的測定；設計不同動態測量實驗，對全站儀動態跟蹤的誤差來源和特點進行了分析；從實驗角度，對全站儀的測量時滯及其穩定性進行了測試分析，給出了定量的結果；比較了全站儀和計算機的內部時間系統，發現兩者存在較大差異。
  13. The single - observer passive locating method with phase difference rate of change and some key technologies - are studied in this dissertation on the applying background of locating remote slow offing targets with fast plane. this dissertation is outlined as follows

    本文面向快速運動的空中觀測平臺對海面慢速運動目標定位的特定應用背景，利用相位差變化率方法進行了單站無源定位體制和關鍵技術的理論研究。
  14. Error rates are also displayed for gauging severity of the error stream from a particular station

    還可以顯示誤差率，用於測量特定臺站誤差流的嚴重性。
  15. The water temperature of the chichiawan stream is gradually raising from 1995 to 1999. the difference between 1997 and 1998 is especially marked, which turns some of the fine habitats into inadequate ones. the water temperature regimes are quite similar among years

    比較1995年至1999年之水溫資料，各測站水溫均有逐年上升之趨勢， 1997與1998年之差異尤其明顯，已經使某些原本櫻花鉤吻鮭尚可存活之棲地，轉變為不適合棲息。
  16. Discussion on rough error treatment followed surveying station and rear - view data

    關于測站和后視數據出現粗差的處理方法的探討
  17. Approach on the error of the fold line rock movement measure station

    關于折線巖移觀測站誤差的探討
  18. The result agrees well with observations by comparing the simulated result with the 167 tidal gauge data

    通過與167個測站的4個主要分潮平均絕對偏差的比較，模擬結果與實測資料符合很好。
  19. The result show that degree of mineralization and total hardness have both increased to different extent in majority survey station, hydrochemistry type has transformed in individual station and reflecting the deteriorated water quality

    對比結果表明：大多數測站的礦化度和總硬度均有一定程度的增大，水化學類型個別站點有所改變，顯示水質變差。
  20. The new system uses short base - line to avoid the long base - line phase illegibility to get the signal arrive angle with higher precision, then use the phase differences without illegibility and the arriving angle to detected the emitter ' s range

    該系統首先通過短基線測角，去除長基線接收機相位模糊，進而獲得更高精度的波達角度；然後通過無模糊的相位差側量值和波達角度估計值確定信號源與觀測站之間的距離。
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