高程差 的英文怎麼說
中文拼音 [gāochéngchā]
高程差
英文
altitude difference-
The main computer is programmed under windows, while the assistant computer is programmed under dos. the last, based on the idea of module - structure, the software of the testing system are designed, thus this software system is compatible and transplantable to design again. the experiment of measuring principle is taken : take the xy flat of lathe as the parallel - pole device and adjust the angle of sensor, the rotating - probe can test the felloe mould in scanning way
藉助虛擬儀器的思想，對測控系統進行了設計：採用光柵尺、光電編碼器測量可動部件的運動量，解析度高、誤差小；採用細分驅動的步進電機裝置，控制性能好；系統實施環境溫度的檢測、補償，提高了檢測精度；基於兩級微機組建測控系統：主機為人機界面，採用windows編程，從機用dos編程，實時性好；軟體設計採用兼容性和移植性好的模塊式結構，便於二次開發。The basic concept of terrain information content is proposed after an overall review of existing research achievement. applying a series of analysis and data processing method, like math - analysis, mathematical statistics, comparative, error visualizing, this paper carefully investigated the terrain information content characteristic of dems of 1 : 50000 map scale of loess plateau area
本文在對前人已有研究成果進行系統總結的基礎上，首先明確了dem地形信息容量的基本概念，並運用數學分析、數理統計、比較分析、誤差地圖等方法，以海拔高程與等高線為研究對象，以1 ： 1萬比例尺dem為參考真值，探討了黃土丘陵溝壑區1 ： 5萬dem的地形信息容量特徵。In this paper, the main research works are as follows : 1 ) survey and analysis previous work in auv navigation and summarize : as the cumulate error, the dead - reckoning and inertial navigation systems ca n ' t be used without other modified system ; the acoustic navigation system is used only in small range, and is very expensive. 2 ) two important approaches in geophysical navigation techniques are summarized, one is terrain contour based navigation, this approach is investigated keystone today ; the other is image based navigation, due to no perfect image sensors and image seabed map, this approach has seldom been practised. 3 ) two important terrain contour based navigation algorithms has been applied to auv, one is match algorithm - based terrain contour match ( tercom ) ; the other is kalman filter - based sandia inertia terrain - aided navigation ( sitan )
主要研究內容包括：一、總結分析了當前水下導航的常用方法和不足之處，指出基於航位推算的導航方法，存在著最大的問題就是導航誤差的積累問題，如果沒有修正系統，這種方法很難滿足使用要求；其次指出基於聲學的導航方法，造價昂貴，導航范圍有限，難以滿足自主水下航行器大范圍導航的需求；二、總結了當前水下地形輔助導航的主要技術路線，一是基於地形高程的匹配方法，這是當前研究的重點；二是基於地形圖像的匹配方法，由於缺乏良好的圖像傳感器，和可用的海底圖像地圖，目前這種方法還有待研究發展；三、將兩種地形高程匹配的常用方法應用到自主水下航行器上：以相關演算法為前提的地形輪廓匹配（ tercom ）方法和以卡爾曼濾波為基礎的桑迪亞慣性地形輔助導航（ sitan ）方法，前者演算法簡單可靠，但是導航精度不高，後者雖然精度比較高，但存在著演算法較為復雜、有可能發散和出現奇異值等問題。This interpolation module uses the popular and advanced nurbs interpolation technology. the procedures of math processing for nurbs, preprocessing for interpolation and real - time interpolating running on dsp are presented in this article. the interpolating procedure uses an advanced self - adjusting interpolation method, which can automatically adjust the length of interpolation according to machining speed, acceleration and the tolerance of bow height
插補模塊則採用了當今最流行最先進的nurbs插補技術，設計了nurbs數學處理程序，插補預處理程序，運行於dsp的實時插補程序，該插補軟體採用了先進的自適應插補方法，可以根據加工的速度，加速度，弓高誤差的要求自適應調整插補步長，同時採用了對插補點的預估演算法，免去以往加工方法中求導的運算，大大降低了運算量，提高了加工速度。Comparision of the height accuracy obtained from efp bundle adjustment and forward intersection using simulation space photogrammetric data
法光束法平差與直接前方交會計算高程的精度比較However, one of the most serious impediments to wider use and improve precision of psi is its sensitivity to external vibration with the consequence that psi has rarely been used in a manufacturing in - situ and some special situations, such as that the optical path is very long or the detected unit is very large
通過嚴格控制環境條件（溫度、氣流、振動等） ，其理論光程差（位相）的最小解析度可以達到nm的數量級。然而，由於干涉計量測試靈敏度高、精度高，對外界振動非常敏感，使它的應用范圍受到限制。Therefore on one hand driving beam unit adopting high - slipping motor can save energy, on the other hand it can increase the factors of energy loss, therefore, saving energy in all is very limited
故採用高轉差率電機驅動抽油機，既有節能的一面，也有增加能耗的因素。故總體節能有限。而且還不能根據油井狀況調節沖程次數。Then the periodic properties of geocenter motion in the x, y, z components are summarized. considering the statistical precision of the gps observations, the geometrical distribution of gps stations and their physical stablility, a new method to determine the parameters of geocenter motion is studied and analyzed. in order to have a better understanding of its effect on the height datum origin, the rule of geocenter motion in the horizontal and vertical components are also analyzed and some useful conclusions are drawn
提出了將譜分析與抗差估計相結合的抗差譜分析方法，並用該方法分析了地心運動時間序列的主要周期特性；為合理地確定地心運動參數，詳細研究與分析了一種新的定權方法對求解地心運動參數的作用，該方法充分利用了gps觀測量的統計精度、點位的幾何分佈以及物理穩定性；為了明確地心運動導致的高程基準的變化，分析了地心運動對地面點的水平分量和垂直分量的影響規律。When the heights of the junction points have been determined, the residuals in the observation equations must be distributed along the lines.
結點高程決定以後，觀測方程的剩差，必須均勻分配到沿線各點。The stationary, hydraulic lift tables are characterized by their heavy loading, wide usage, high safety and high effclendy. they are available for smooth rising in inspection and installation of large equipment, as well as using together with production line and special equipment
該產品承載最大、行程范圍廣、安全高效，用於物流過程中高度差之間的貨物輸送、裝卸、傳遞，可與流水線、專用設備等配套使用；大型設備檢修、安裝等舉升用。Adopting method of graphical modeling and with help of object - oriented design thought, a set of graphical modeling softwares has been developed by using c #. net programming tool, the influence of fluid network ' s height difference upon the pressure - flow rate passage being considered, at the same time, the enthalpy - temperature passage being also added, thereby perfecting and expanding further the fluid network
摘要採用圖形化建模方法，藉助面向對象的設計思想，使用c # . net編程工具開發了流體網路圖形建模軟體，該軟體對壓力流量通道考慮了流體網路高度差的影響，並增加了洽溫通道，從而對流體網路做了進一步完善和擴展。Elevation differences is small compared with the earth's radius, this is proportional to the height above sea level.
高程差與地球半徑相比顯得很小，它與海洋麵以上的高度成正比。This paper gives a model of trigonometric leveling of atmospheric refraction and vertical deflection, then analyses every part of its accuracy and give a lists to analyses all kinds of effects caused by the errors of triangle leveling
摘要首先建立了大氣折光和垂線偏差的三角高程測量模型，並對模型的精度進行了逐項分析，列表分析了各種誤差對三角高程測量的影響。In view of the altitude problems of inspecting the weighted average ways of obtaining altitude and the advantages and disadvantages of moving surface interpolation method are talked about through comparison, with which the writer draws a conclusion that moving surface interpolation method is suitable to be applied for the dynamic state inspection places, moreover the key technology about the dynamic slate inspection is also taken into consideration, which includes digital camera and types of camera lens, the cause of camera lens distortion and the fundamental determining principle, the gain of image coordinate and the realization of time synchronization
針對檢定點高程問題，分析比較了獲取高程的加權平均法和移動曲而內插法的優缺點，得出移動曲面內插法適合用於動態檢定場的結論。特別是針對動態檢定的關鍵技術給予了相關研究，內容涉及：數碼相機及相機鏡頭的選型，相機畸變差產生原因及測定的基本原理，像片坐標獲取以及時間同步實現，得出結論：利用gpsoem板的秒脈沖（ 1pps ）輸出特性，能夠實現兩臺數碼相機與gps接收機時間同步，滿足動態檢定指標要求。The algorithm generates three - dimensional terrain model and displays in real time. it uses an efficient and simple method to attain the dependency between sampling points on terrain, and refines the center points in top - down way. it incorporates the dependency of points into their errors so that the cracks inside the terrain block are avoided, at the same time eliminates the cracks at the edges of blocks through adjusting the elevations of those points that cause the cracks
該演算法基於規則格網數據實時生成三維地形模型，並實時顯示；採用了一種簡單而高效的方法來求解采樣點之間的依賴關系；以「從頂向下」方式細分中心頂點；並把頂點依賴關系融合進頂點誤差中，避免了地形塊內部的裂縫，同時通過調整塊邊界點的高程消除了塊邊界處的裂縫；演算法還具有利用幀間相關性，視相關等方面特點。( 2 ) calculation of landslide stability indicates that landslide stability is worse and worse if reservoir is sluiced and water level is going up, and the worst condition will happen when the water level drops from 175m to 145m and six degree earthquake overlaps
滑坡穩定性有限元分析表明，當水庫蓄水時，隨著水位的上升，滑坡穩定性越來越差，最為不利的工況是水庫水位從高程175m降至145m同時加度地震的情況。Among the 130 debris flow valleys, dazhai gully suspends high on the up range of baihetan hydropower station, with an altitude over 970 m and a drop more than 350 m. gravels, mud and flood in this valley brings the construction site in great danger. 3 kilometers upriver from the mouth of dazhai gully, lies the haizi gully, which is also frequented by debris flows, but will be taken as the dumping site for the construction
庫區130條泥石流溝中大寨溝以溝口海拔970餘米的高程和350餘米的落差高懸于白鶴灘水電站的大壩上方，其溝內泥石流帶來的礫石、泥沙與洪水直接威脅著電站建設工地和樞紐的安全；緊鄰大寨溝溝口上游約3km的海子溝則為一條泥石流活動頻繁的溝谷，因其出口將作為水電站建設的棄渣場地，流域內的泥石流活動關系著水電站建設中棄渣場的安危。Some features of the engineering control network demand special applications of gps in road and bridge engineering, for example, particular requirement of accuracy on some aspect that results in distribution of net points and sometimes bigger height difference of points, consideration of staking out in construction in the design of engineering control network, application of independent engineering coordinate system, and use of engineering mean height surface as the projection surface of computation
由於工程式控制制網的一些自身特性，如施工控制網要考慮施工放樣的方便，或某一方面精度的特定要求，網點分佈不夠均勻，點間高差有時較大；採用工程獨立坐標系，並且往往以工程平均高程面為計算投影面等等，使得gps在路橋工程中的應用也有一些特殊性。The in - situ testing includes surface deformations, sub - surface movements, earth pressures, pore water pressures, underground water levels, spt, stresses of pipes and pipe - soil contact stresses. in addition, the total jacking forces, deviations in line and level of the pipe line and earth pressures in the earth pressure balance machines ( epbm ) are also recorded. the results of field - testing are analyzed, and the variety of testing datum include earth pressures, pore water pressures and underground water levels during the course of the shield through it are studied
現場測試內容包括地面變形、深層土體變形、土壓力變化、孔隙水壓力變化、地下水位變化、土體標準貫入試驗、管道內力變化、管土接觸應力變化以及頂管施工現場記錄（包括頂力、土壓力、平面偏差、高程偏差等） 。Now the 2d precision of spatial points is very great, but because by usual correlation fitting method we can transfer gps ellipsoidal height into normal height of the local geoid is considered as mathematical curve plane, it is not conform the fact of mountainous districts so the precision of elevation is so small that it is not satisfied with the requirement of leveling
目前，地面點的平面位置確定精度已相當高，但高程精度始終未能達到水準測量的要求，因為將gps大地高轉化為水準正常高的擬合推估方法是將局部大地水準面視為數學曲面，常常與實際情況差異較大（特別在西部山區差異更大） 。分享友人