path accuracy 中文意思是什麼
path accuracy
解釋
保持飛行軌跡的準確度-
First of all, the assembly model of dfa is established and the data structure of the model is proposed ; in order to redesign product and structures and select optimized assembly plans, an assemblability evaluation system is constructed. secondly, assembly process planning is analyzed, including assembly path planning and assembly sequence planning ; and then the thesis brings forward the way of 11 - tuple to represent the movement of assembly / disassembly of assembly elements. in the end, this paper makes an research on the technology of interference checking, raised a kind of algorithm of swift interference checking based on envelops bounding box decomposition, hence, the accuracy and efficiency of the algorithm is improved dramatically
首先建立了面向裝配設計的裝配模型，給出了它的數據結構；接著從面向產品結構和裝配工藝過程兩方面再設計的角度，構建了裝配性評價體系；接著闡述裝配工藝規劃技術，包括裝配路徑規劃和裝配順序規劃；然後提出了11元組法來表示裝配元件的裝拆運動；最後對干涉檢驗技術進行了研究，採用一種基於包容盒逐層的快速干涉檢查演算法，提高演算法的精度和效率。 -
Although the accuracy in meterological forecast of tropical cyclones has been distinctly improved, it is still a difficult problem confronting masters and anti - typhoon team leaders of the companies how to steer clear of typhoon reasonably and safely in case that the actual resistance to typhoon is strong enough, the sea area wide enough, and the time permitting ; to avoid unreasonable deviation, anchoring for shelter, blindly rushing onto her path, being involved in storm area, even into the the center of typhoon ; under the limitation of the condition of the sea area and time. how to take correct meassures to escape, such as navigating with wind or windward in bias angle, slowing down, anchoring, berthing alongside the warf, mooring to buoy, etc. as early as possible
盡管氣象部門對熱帶氣旋監測預報的準確率已經比過去有了明顯的提高，然而船舶在海上如何避離臺風，如何做到在本船實際抗風能力允許、海域條件允許、時間也充裕的前提下合理避臺，安全避臺，避免不合理的繞航、 「扎風」 ，避免盲目冒進「搶風頭」 ，更避免被捲入強風區甚至臺風中心；在海域條件受限、時間尷尬的情況下又如何正確採取偏順航、偏頂航、滯航、錨泊、系岸、系浮等抗臺措施和技術，盡快擺脫臺風的影響，仍然是擺在船長和公司防抗臺領導小組面前的一個實實在在的難題。 -
From the experiments we can get a conclusion that with the characteristics of working well, sample circuit and light path, rated current error and phase error fulfilling accuracy class 0. 2, and respond speed and bandwidth superior to old electromagnetic current transducer, the hybrid current transducer we designed is practical
實驗證明，採用這種方法設計的混合式光纖電流互感器工作可靠、電路和光路簡單，比差和相差都能夠很好地滿足國標中對0 . 2級電流互感器的要求，動態響應速度、帶寬等性能都明顯優于傳統的電磁式電流互感器，已經進入實用化階段。 -
This dissertation presents improved methods for both testing results analysis and aspheric mirrors fabrication concerning computer controlled optical surfacing ( ccos ) technology to improve its efficiency and accuracy. a new ccos model based on " relative tool path " is proposed, and a method is developed to solve and evaluate fabricating parameters
目前ccos （ computercontrolledopticalsurfacing ）技術被廣泛用於離軸非球面反射鏡的製造，本文針對該技術中涉及到的一些問題開展較為深入的研究，以進一步提高離軸非球面的加工效率和精度。 -
Accuracy of the measurement system is verified by standard signal sources. frequency tracking error does not reach 50hz. the measurement system has merits of visual display and high accuracy, which is an ideal measurement system for dual - path saw mass sensor
應用標準信號源驗證了測量系統的精確性，頻率跟蹤特性誤差在50hz以內。該測量系統顯示直觀，精度高，是雙聲路聲表面波質量傳感器理想的測量系統。 -
Then makes a detailed study on the water - level sensor : analysis its working principles, measurement conditions and accuracy, at present, water - level sensor has various sorts and different prices, this paper makes a detailed research about the principle, characteristic and application of the cyg19 : solid - state pressure transducer. and then the text make a research about the system interference, including interference source, types, propagation path and anti - interference measure. at last, having experiments validates its practication
目前，由於水位傳感器的種類繁多，價格相差也較大，本文就所選用的固態壓力傳感器cyg19系列小差壓傳感器的原理、特點及應用進行了詳細的研究；再次，對自動量水儀表系統的干擾部分，包括干擾的來源、干擾的類型、干擾的傳遞方式以及抗干擾措施進行了探討；最後，實驗驗證自動量水儀表的可適用性。 -
Because of above demands, the program of simulation of response of the impact load is generated by fepg, deeply analysis to the program shows the meanings of parameters, function of subroutines and interface files, and compared with the result of experimentation, which indicate the difference is small enough, so can generate the computing source program of the grid structure. as the beginning research of the load identification, this thesis discusses the recognisation of cantilever beam by ga, and the result is well, but the program is limit by number of the parameters. finally show the path of accuracy improvement
基於上述要求，本文利用fepg對格柵結構在沖擊載荷作用下的響應進行了數值模擬，生成了計算源程序，並對源程序做了詳細而細致的分析，對內部各程序中的變量含義、子程序功能和文件介面做了詳細說明，並將模擬結果與實驗結果作了比較，結果表明， fepg在格柵結構的計算結果與實驗結果相差較少，可以用來生成計算源程序，為下一步的格柵結構載荷重構研究提供參考。 -
The methodology adopted by most existing cam / cnc systems, which uses huge amount of linear segments to approach the original shape and make linear interposition increases the cost of memory size and communication work of the cnc system tremendously. a new approach based on cubic polynomial and b spline interposition to rebuild the cam generated tool path under real time condition is presented in the paper. applications on cnc machine tools showed that the presented approach improves the machining accuracy and increases the cutting speed significantly
目前大多數cam / cnc系統採用大量小直線段逼近原始曲線和直線插補的做法，只能獲得零階連續的走刀軌跡，逼近精度低，不能保證高速加工運動的平穩性，因而加工精度、光潔度和加工速度都難以提高；由小直線段構成的nc代碼數據量龐大，也增加了數控系統在內存容量和數據傳輸方面的成本。 -
Optimization of cutting path in complex shape machining of cnc machine tools under high speed and accuracy condition is a crucial problem
走刀軌跡的優化對復雜型面的高速高精度加工起著十分關鍵的作用。 -
The paper introduced the theory of passive acoustic localization and the algorithm of space acoustic localization. by use of combined acoustic path difference, the paper amended the passive acoustic localization formula and improved the accuracy of localization
本文介紹了被動聲定位的原理及空間聲定位的演算法，推導出了被動聲定位公式，並利用聲程差組合改進了被動聲定位公式，提高了定位的精度。 -
Considering the contribution of other factors, to improve design accuracy, avoid optical path deviation, reduce insert dissipation and increase the manipuility of the device is our purpose. the simplest type of flat - plate achromatic optical phase retarders is made from a single birefringence material
實踐證明，理想的消色差波片應當以簡便片狀雙折射型設計為主，在此基礎上考慮其他方面因素的影響，提高其設計精度，避免光路系統偏折，降低插入損耗，從而提高器件的可操作性。 -
Compared with average filter method, the method can eliminate the noise information in the measurement points more effectively. a data compression method was proposed to compress the measurement points that include huge redundancy under certain accuracy. then segmentation and smoothing method for the measurement points to identify the jump edge, crease edge and smooth edge and optimize the measurement points were conducted so as to reconstruct the surface and generate the manufacturing path conveniently
在一定的精度條件下，該方法可對包含大量冗餘的測量數據進行壓縮處理；對測量數據進行分片處理，拾取測量數據中的階躍邊界點、褶皺邊界點和光滑邊界點並優化測點數據，從而便於對測量數據進行nurbs （ non - uniformrationalb - spline ）重建和加工路徑生成等后續處理。 -
By way of analysis about the typical gps receiver tracking loops, the mathematical models of code multipath error and carrier phase multipath error are proposed in the dissertation ; by way of analysis about geometrical model of multipah signal, the mathematical model of differential path delay is proposed in the dissertation ; based on the above analysis, a improved carrier phase multipath mitigation algorithm using closely - spaced multiple antennas array is proposed, the result of computer simulation proves that the algorithm is feasible. the attitude parameters are often estimated using direct computation method. the relationship between the accuracy of attitude parameters and baseline length as well
本文從經典的gps接收機跟蹤環出發，分析了多徑效應對偽距觀測量、載波相位觀測量和snr的影響，提出了碼相位多徑誤差和載波相位多徑誤差的數學模型；通過對多徑效應的幾何模型分析，提出了多徑信號相對路徑延遲的數學模型；在此基礎之上，提出了一種改進的基於窄間距多天線陣列的載波相位多徑誤差抑制演算法，通過計算機模擬證明了該演算法的有效性。 -
In order to reduce the effect of line - structured laser source on the m easuring accuracy, a unidirectional expanding optical path for the nonlinear sou rce is presented, which can accomplish shaping and intensity correction of gauss ian beam
為了減小線結構光傳感器光源對測量精度的影響，設計了一種集整形和能量校正為一體的非線性光源單向擴展光路。 -
2 ) forward modeling method of refraction first - break in lateral varying velocity media. for layered media, a new forward modeling method of refraction is presented. for more complex near - surface conditions such as mountain areas, a new improved ray tracing method based on shortest path assumption is studied, it has higher accuracy and faster computing efficiency than conventional ones. the method can be used for the forward modeling of complex near - surface media
而對于折射面起伏較大、低速層和折射層速度變化較大的復雜近地表情況，提出了一種改進的最短路徑初至波射線追蹤方法，該方法精度高，計算速度快，適用於任意二維復雜近地表介質（如山地）的初至折射波的正演計算。 -
Effective scanning line algorithm was designed ; divided scan path was used, and extract scanning line vector to area filling. it can be concluded that this algorithm increases manufacturing velocity and accuracy
文中設計了有效的掃描線與多邊形邊的求交演算法，保證了交點的正確配對；採用分區域掃描策略，提取同區域的掃描矢量完成了掃描，使成型速度與精度都有所提高。 -
In chapter three, the importance of maintaining the equal optical path between measuring beam and reference beam in measuring horizontal and vertical vibration table are analyzed, and the factors having effect on contrast degree of interference fringe are introduced. for improving the accuracy of laser - vibration - measuring - system, the phase - modulation - multi - period - average method and the vibration isolated of system are analyzed
第三章分析了光路設計中的等光程問題的重要性，以及影響干涉條紋對比度的相關因素；並從提高測量精度的角度分析了調相多周期平均法和系統的隔振。
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