立體坐標 的英文怎麼說
中文拼音 [lìtǐzuòbiāo]
立體坐標
英文
spatial coordinate-
In the stage of the sun and the moon in sight, azimuth of the sun, the earth and the moon in the spacecraft body coordinate system is simulated. combining the simulated azimuth with the ephemeris of the sun and the moon, the state equation and observation equation are modeled. the initial orbital parameters calculated by least square method are used in orbit state equation to predict spacecraft state and to realize autonomous navigation
在日月可見階段,模擬日、地、月敏感器測量信息,即日、地、月在航天器本體坐標系下的方位信息,結合日月星歷,建立狀態方程及觀測方程,通過最小二乘法得到歷元時刻的軌道狀態初始值,將其代入軌道狀態方程進行自主導航。3. through the realization of orientation picture showing in three - dimension, solve the problem that there is no way to show how rr, any located points exist in a little region when the located pictures shown in ichnography
為加強罐底定位軟體的分析功能,建立了以罐底為xy平面的三維直角坐標系,編制出相應的罐底三維定位軟體。During the evaluation method for the precision of missile aiming on the sea, setting up test structure system, confirming demand coordinate, putting up installation and calibration to test frame of missile silo, in the course of navigating, it was analyzed and calculated the direction error that brought by the incorrectness of the position of longitude and latitude
在海上瞄準精度鑒定方法中,建立了試驗構建體系,確定了必要的坐標系,對彈筒試驗支架進行了裝調、校正和實際標定。對艇在航行過程中,由於艇的經、緯度不準確而帶來的定位誤差的影響進行了分析與討論。Through analyses of epipolarity geometry of the linear ccd push - broom images and frame perspective images, based on the projection track method, epipolarity of linear ccd push - broom image is established and the properties of epipolarity curves is discussed, and a new epipolarity model based on the simplified push - broom sensor model is proposed. for stereo images of frame perspective and linear perspective, how to set up of epipolarity is studied in terms of fundamental matrix in computer vision, and an algorithm of epipolarity solution that only depends on coordinates relation of identical point is presented. 4
通過線陣ccd推掃式影像和框幅式中心投影影像核線理論的對比研究,利用投影軌跡法建立了線陣ccd推掃式影像的核線模型,分析和總結了它的基本特性;針對基於共線方程的簡化傳感器模型,提出了一種新的核線模型;對框幅式中心投影立體影像和線陣ccd推掃式立體影像,利用計算機視覺中的基本矩陣研究核線關系的建立,提出了一種單純依靠同名點坐標關系的核線模型解法; 4The angular motion mathematical model of rotative vehicles is established in the body coordinate system and the quasi - body coordinate system
摘要在彈體坐標系和準彈體坐標系中建立了旋轉飛行器角運動數學模型。Due to the moving base existence of the minehunting and the frame structure characteristic of the sonar array, a new modeling thought in which the boat body coordinates is regarded as moving coordinates and the whirligig equation of sonar array compared with the self coordinates is founded on the basis of the euler ' s theorem and the coordinate transform is introduced. the dynamic equations of minehunting sonar array with the state matrix form are founded by settling the dynamic models with the vector form. so it offers theory foundation for analyzing the dynamic characteristic and designing robust control
由於獵雷艇作為動基座的存在和聲納基陣的框架結構特點,提出了以艇體坐標系為運動坐標系,運用變形的歐拉定理和坐標變換建立聲納基陣相對自身坐標系的旋轉運動方程的建模思想;將所建立的矢量形式的動力學模型展開整理,獲得了狀態矩陣形式的獵雷聲納基陣動力學方程,為系統動力學模型的實用化奠定了基礎。In the thesis. reading the iges file - 3 - and all the geometry entities and annotation entities are extracted ; on the base of geometry entities extracted, geometry entities are classified based to their three views. a new data structure is proposed to describle 3d form features ; inspection items of the workpiece are recognized ; the cmm - based inspection planning system is built ; on the other hand, as a part of cims, cmm need exchanging data with the software of cad / cam, so iges export interface is developed based on iges standard. in order to show the whole information of the surface, the 3 - dimensional free - form surface is drawing using the opengl
通過讀取iges文件對實體進行分離、提取、識別出對工件進行描述的原始信息;在此基礎上,西安理工大學碩士學位論文提出一種優化演算法對三視圖自動進行分離,建立了一種對工件進行三維描述的數學模型,照此模型對工件進行立體重構;識別出工件的各種檢測信息,提出一種對公差信息進行描述的數學模型,井與三維立體相結合,生成有檢測意義的三維實體;根據三坐標機的測量系統,生成相應的檢測規劃;另一方面,作為cmis的一部分,應具有與cad cam軟體之間的數據交換功能,本文還開發了iges輸出介面,採用opengl繪制三維空間曲面,向用戶展示其全面信息。Nowadays, the machining center carries through the precision inspection only following the fixed coordinates " axes, which can not completely reflects the real error of the spacial position of the practical machining outside the axes and leads to having no the directive relation between the inspected precision and the practical machining precision. so, this paper introduces that the error factors of influencing workpiece ' s outline on machining and carries out the solid inspection of every spot ' s error inside the workaround on the horizontal machining center
本文針對當前加工中心僅沿固定的坐標軸線進行精度(含幾何精度和定位精度)檢驗,並不完全反映軸線外實際加工的空間位置真實誤差,導致檢出精度與機床實際加工精度無直接對應關系的現狀,論述了加工時影響工件型面輪廓精度之加工中心的誤差因素,對加工中心實施其工作區內各點誤差的立體檢測。According to non - newtonian fluid mechanics theory and mathematical method, conbined with plunger moving property, the hypothesize fluid is imcompressive, hydraulic radius of flow of liquid in crevice is very little, and it is laminar flow, the flow is treated fixed continuous flow at every instant position of plunger, equation of motion and boundary condition were set up in condition of concentric and eccentric of pump barrel and plunger
運用非牛頓流體力學理論和數理方法,結合抽油泵柱塞運動特點,假設液體為不可壓縮的,液體在縫隙中流動的水力半徑很小,呈層流流動,柱塞在每一位置的瞬間,流動做定常流處理,建立了泵筒與柱塞同心和偏心兩種情況下運動方程和邊界條件,引入無量綱坐標、無量綱速度和柱塞與泵筒偏心配合時的縫隙高度,並給出縫隙流流速、流量的解析解。Fitts " law was extended to two - dimensional polar coordinate system, and based on this, a method on human movement quality evaluation was proposed. indices of gait symmetry, indices of difficulty and indices of performance for human upper limbs were defined and combined with other indices to form a set of systematic indices of movement quality evaluation
將fitts定律推廣到二維極坐標下,並以此為基礎建立了矢狀面內的人體運動質量評定方法,定義了上肢運動的難度指標、執行度指標和下肢運動的對稱性指標,提出了一套能反映運動質量各方面情況且具有普遍意義的運動質量評價指標。When a solid regionin three - space is symmetric with respect to a point, the evaluation of triple integrals over is often facilitated by using spherical coordinates
當空間立體區域關于某個點對稱時,計算上的三重積分通常使用球坐標比較容易。A projection algorithm combined with 3 color - fiducial vision - based registration for virtual object registration in augment reality system, based on coordinate transition and 3d projection in 3d space, is described in detail
結合三色基準注冊技術,藉助三維空間中的坐標系變換和立體投影變換演算法,建立增強現實系統中虛擬物體投影注冊模型,提出並推導增強現實系統的虛擬物體立體視覺投影注冊演算法。The maximum likelihood registration algorithm based on earth - centered earth - fixed ( ecef ) coordinate system considers the geometry of the global, and eliminates errors introduced by the stereographic projection. the simulation result based on this registration algorithm shows that the satisfied angular biases can be preliminarily obtained. 5
基於地心坐標系的傳感器極大似然配準演算法考慮到了地球曲率的影響,克服了立體投影法的缺陷;採用這種演算法,我們可以把不同傳感器局域坐標系的量測轉化到地心坐標系中,變成統一的量測,便於融合中心做進一步的處理;模擬結果表明這種演算法可以得到較為滿意的角度偏差。It is suggested that transformation relation between spatial local coordinate system and integral coordinate system be established by vector method, which simplifies coordinate calculation of toe slab and is easy for design modification
提出了運用向量法建立空間局部坐標系與整體坐標系的轉換關系,從而使趾板坐標計算簡捷方便,且易於設計修改。The program of data processing in determination of percent released of pharmaceutical preparation was developed ; two modules included in this program are connected but independence each other, one module calculate percent released, one module regress equation ; determination of percent released of pharmaceutical preparation, comparison of released curve in one reference frame and modeling mathematics model were realized by running this program. the program of formulation optimization based on artificial neural network was compiled to solve the nonlinear problem in formulation optimization. provided parameters were used to predict the released amount of a set of formulations
簡便,其計算結果與現有其他程序計算結果基本一致:開發固體制劑體外溶出試驗數據處理程序,程序運行時分為計算累積釋放百分率和優選最佳數學模型兩個相互連接又各自獨立的環節,實現了累積釋放百分率的自動計算,同一坐標系下釋放曲線的直觀比較,常用數學模型的擬合;開發基於人工神經網路的處方優化系統,解訣處方優化這一多目標、非線性優化問題,利用符合擬合精度的訓練結果預測給定處方的釋放度,預測結果與實驗結果基本相近。It is in dire solved need of opening up nc machining simulating system in manufacturing that there are maturity function and better real time. aiming at the simulating system study of 5 - axis numerical control milling of sajo12000p, the paper introduces the function modules of simulation system of nc machining., including interface module data processing data chain module timely controlling and roming module, and by this way we accomplished the basic function of numerical control machining
因此開發功能完備、實用性強的數控加工過程模擬模擬系統成為當前製造業急需解決的一個問題本文以數控技術實驗室的saj012000p五坐標加工中心為模擬對象,針對其開發一套數控模擬軟體,本人承擔了整個模擬系統的cnc控制軟體的開發工作,針對cnc系統軟體的人機交互界面的建立、 nc代碼的編譯、編譯指令的數據處理、插補、進程問數據鏈的傳輸加載、機床模擬運動按照nc指令的適時控制等功能子模塊進行了開發研究。When a solid region in three - space has an axis of symmetry, the evaluation of triple integrals overis often facilitated by using cylindrical coordinates
當空間立體區域有一個對稱軸時,計算上的三重積分通常使用柱坐標比較容易Taking the characteristics of road and bridge engineering into account, this paper makes systematic analysis and study on applications of static gps in data processing of surveying in road and bridge engineering : the feasibility of using single point positioning result as starting point is studied and the influence of it on baseline solution is discussed ; on account that the software provided along with instrument by vendors usually does not support coordinates in the independent engineering coordinates system from gps observations, a simple and effective method is represented for the gps data processing in the independent engineering coordinates system and is programmed. through real examples the method and programs are testified ; from gps surveying the wgs - 84 coordinates are acquired, while in reality coordinates in local coordinate system are needed, so conversion from wgs - 84 coordinates to local coordinates is necessary
結合路橋工程的特點,對靜態gps在路橋工程式控制制測量中的數據處理作了系統的分析和研究: ?對單點定位結果作為起算點的可行性進行了研究,並探討其對基線解算的影響; ?鑒于商家提供的隨機軟體往往不支持利用gps觀測得到工程獨立坐標系中坐標,為工程獨立坐標系gps數據處理提供了一種簡便有效的方法,並編制了相關的處理程序,通過實例驗證,程序是正確的、方法是可行的; ? gps測量得到的是wgs - 84坐標,而實用上需要的是地方坐標系坐標,因而得把wgs - 84坐標轉換地方坐標系坐標。This thesis devoted to study three - dimensional data stored in database, three - dimensional optimization, the corresponding algorithm of two - dimensional data and three - dimensional data and principle of interactive technical application of virtual reality with three - dimensional model at the theoretical research. the goal of technical research is to develop a set of interactive system based on virtual reality and web with the ordinary computer, namely create a real - time and lifelike virtual reality environment without special hardware equipment, and applies this environment to the interactive system like inquiring, thus to set up a kind of high - quality interactive visiting and inquiring system based on technology of a new generation virtual reality
理論研究的目標致力於三維數據在數據庫中的存儲、三維模型的優化、二維坐標與三維坐標的對應演算法及虛擬現實互動式技術應用的原理;技術研究的目標是在web環境下,利用普通微機開發出一套基於虛擬現實技術的互動式系統,即在無需特殊硬體設備的條件下,能夠創造一個實時逼真的虛擬現實環境,並將此環境應用於查詢等互動式過程,從而建立起一種基於新一代虛擬現實技術的高質量的互動式訪問與查詢系統。Using the numerical computation method to simulate the pure air flowing in the plasma generator and using zero dimension theory and continuous medium hypothesis to establish the mathematical model of the plasma generator and applying the curvilinear coordinate to disperse the space of the plasma generator, applying simplec method to solve the set of discredited equations
應用數值計算的方法模擬了等離子發生器內部的純空氣流動,應用零維理論分析模型和連續介質假設建立了描述等離子發生器內部流動和傳熱的數學模型;採用貼體坐標系對等離子發生器的流場空間進行空間離散;採用simplec演算法來求解離散方程,獲得流場的數值解。分享友人