換算精度 的英文怎麼說

中文拼音 [huànsuànjīngdù]
換算精度 英文
conversion precision
  • 換 : 動詞1. （給人東西同時從他那裡取得別的東西） exchange; barter; trade 2. （變換; 更換） change 3. （兌換） exchange; cash
  • 算 : Ⅰ動詞1 （計算數目） calculate; reckon; compute; figure 2 （計算進去） include; count 3 （謀劃;計...
  • 精 : Ⅰ形容詞1 （經過提煉或挑選的） refined; picked; choice 2 （完美;最好） perfect; excellent 3 （細）...
  • 度 : 度動詞[書面語] （推測; 估計） surmise; estimate
  • 換算 : [數學] matrixing; scaler; conversion; convert; translation換算表 conversion table; equivalent tab...
  • 精度 : precision; accuracy; degree of accuracy; precision accuracy; trueness
  1. Aspheric optical compound machine tool ( aocmt ) which integrates grinding, lapping and polishing is developed. the influences of motion errors on grinding accuracy are analyzed. according to homogeneous coordinate transition model, the postposition processing algorithm in multi - axis numerical control machining is deduced

    3 、研製了集銑磨成型、研磨、拋光於一體的光學非球面復合加工機床（ aocmt ） ，分析了各種運動誤差對銑磨精度的影響；根據空間齊次坐標的變換模型，推導出多軸數控加工的後置處理演算法；通過五軸數控聯動， aocmt機床能夠以法向方式加工出任意復雜的光學表面，銑磨精度穩定在8 m之內。
  2. Least squares solution of equation is used to calculate and adjustment transformation matrix at same time, transformation matrix is used to calculate the 3 - axis angle of star sensor. so is very fast and precise

    利用方程組的最小二乘解求取轉換矩陣，通過轉換矩陣計算星敏感器的三軸姿態角，使姿態計算和平差同時進行，具有較高的姿態計算精度和計算速度。
  3. Based on the correct evaluation of the means and covariance of the measurement error in cartesian coordinate system, the algorithm processes the radar measurements sequentially, and the linearization of measurement equation is no longer neccessary

    作者推導了有測速數據時的去偏轉換卡爾曼濾波演算法。此演算法估計精度和計算效率比以前的方法有較大改善，對測量方程不做近似處理。
  4. It can save the information near lips, which may be deleted by the method based on two points. ( 2 ) based on the analysis of current methods, a new multi - pose facial feature location algorithm is developed, which is based on the analysis of multi - feature and integral projection, the combination of an iterative search with a confidence function and template matching. the algorithm not only improves the location accuracy, but also speeds up a great deal. ( 3 ) based on the analysis of the advantages and disadvantages of current feature extraction methods, an adaptive facial feature selection criterion is developed, which is based on facial local feature protrusion consisting of several aspects, such as face image resolution and image quality

    其後研究了人臉特徵提取，一、討論了適合於多姿態人臉識別的基於三點仿射變換的人臉圖像歸一化方法，以克服基於兩點仿射變換會引起較大圖像信息損失的缺陷；二、在分析現有器官定位演算法的基礎上，提出了新多姿態人臉器官特徵定位技術，將多特徵和直方圖分析、基於置信度函數的迭代搜索和模板匹配相結合，既提高了器官定位精度，又提高了定位速度。
  5. The hardware has two input channels of high - speed analog signal, with the signal amplitude of 0 - 5v, the conversion precision of 12bits, and the maximum sampling rate of 400ksps. this system includes 4 dsps ( adsp 2181 ), which can be arranged as a pipe line processing array. many algorithms can be realized in this system

    系統硬體有兩路模擬數據採集通道，模擬信號輸入范圍為0 ? 5v ，轉換精度為12位，最高采樣率400ksps ；系統包含4片dsp （ adsp2181 ）構成的流水線型的處理陣列，可用於實現各種演算法；系統的控制邏輯由fpga完成。
  6. The system has 6. 8mhz digitalizing bandwidth and 70db instantaneous dynamic range, which can be obtained by using rf / if converter vxi3570, high precision digitalizer e1437a and proper signal processing arithmetic

    系統數字化帶寬設計為6 . 8mhz ，選用rf if變換模塊vx13570 、高精度數字化儀e1437a和適當的信號處理演算法可獲得70db以上的瞬時動態范圍。
  7. Abstract : the conversion from volume flow to mass flow is implemented by using intelligent flow computer with necessary accuracy. the converting method ， field wiring and calibration results are introduced concretely

    文摘:介紹利用智能流量計算機，在保證精度的情況下，實現了體積流量轉換成質量流量。具體介紹了轉換方法、現場接線與校驗結果。
  8. This paper discussed the coordinate transformation method of wgs84 coordinate system to 1954 - beijing gauss grid coordinate. introduced transformation model of wgs84 to beijing 54 and computing method of transformation parameter. according to different model and computing method, computed and compared with the result combine real data

    本文詳細討論了wgs84大地坐標轉換到北京54坐標系下的高斯平面坐標的方法，重點介紹了wgs84和北京54的空間直角坐標的轉換模型及轉換參數的計算方法，並根據不同的模型和計算方法結合實際數據進行計算和結果的比較，認為採用基線向量求解的四參數模型具有較高的轉換精度，分區變換和提高控制點精度也能提高轉換的精度。
  9. The paper analyses the advantages and disadvantages of a large number of harmonic analysis methods and puts forward to a new algorithm in order to improve precision of fft, which is plural list and interpolating windowed split - radix fft ( srfft ). the simulating result shows that the algorithm can meet precision of harmonic parameters

    為了提高fft的精度，本文在分析目前國內外各種諧波分析及測量方法利弊的基礎上，提出了利用復序列加窗插值分裂基快速傅立葉變換（ srfft ） 。該演算法能極大地提高fft計算的精度，從而滿足諧波測量中對諧波參數的精度要求。
  10. Based on the current jiangmen independent coordinate system and the method of coordinate transformation, this paper analyzes and resolves the coordinate transformation between jiangmen independent coordinate system and beijing geodetic coordinate system 1954 using 10 - parameters orthomorphic map projection transformation formula, then validates the results of coordinate transformation and analyzes the precision

    摘要以現有江門獨立坐標系及坐標轉換公式著手，分析了江門獨立坐標系與54北京坐標的相互轉換，提出了10參數正形變換方法，並進行了轉換計算結果驗證及精度分析。
  11. Aimed at design index of input power 1. 5kw, most output rotate velocity 300rpm, and rating output rotate velocity 150rpm, considering factors of angle and ratio of transmission, on the basis of kinematics simulation, author optimized the kinematics parameters. in this paper, author has made some analysis and study to the primal assembly condition of transformer ' s sequential action in theory, designed structure dimension of the input and output transformer, and verified the corresponding strengthen. further, the structure, which is to key transmission components of velocity control system of the speed regulator, has been designed based on meeting operational sensitivity, precision and self - locking

    本文針對輸入功率為1 . 5kw ，最大輸出轉速，額定輸出轉速的無級變速器的設計要求，並考慮到傳動角及變速比等因素，在運動學模擬的基礎上，對運動學參數進行了優化；本文對變換器連續作用的初始裝配條件進行了理論分析與研究，對輸入、輸出變換器作了結構尺寸的設計，並進行了強度校核計算；本文還對變速器調速系統中主要傳動構件在滿足操作的靈敏度、精度、自鎖性的基礎上進行了結構設計；最後採用workingmodel3d軟體，進行虛擬樣機的計算機輔助模擬設計及運動學和動力學計算。
  12. A general stack equation of mobile robot based on analyzing the motion of planar motion object and the mathematical models of four different kinds of common wheels is developed, accordingly, the mobility of mobile robot is addressed and the forward and inverse solutions to speed for specific configuration driven by differential speed are derived. utilizing the muir and newman convention, the description of the posture transformation matrices between different coordinate frames and the solution for the speed of point located on these frames are introduced. according to posture estimation, a more accurate method, dead reckoning algorithm, is developed for a specified configuration characterized by differential speed motorization, and simulations of this algorithm and other traditional methods are carried out using matlab while traversing a circular path

    本文對兩輪差速驅動移動機器人的運動學及其本體緩沖設計進行了探討，在對平面運動物體運動分析的基礎上結合四種常用車輪的數學模型，推導出了一個通用的移動機器人堆積方程，在此基礎上分析了移動機器人的移動能力、並針對兩輪差速構型推導了速度正解與逆解；使用muir和newman的運動學建模方法，推導了移動機器人上點及連桿坐標系位姿、速度變換關系矩陣及求解方法；在移動機器人位姿識別方法中結合差速驅動構型對航位推演算法進行了分析：推導了一種理論精度較高的航位推算演算法，並使用matlab對其與傳統的推算演算法在跟蹤圓弧軌跡情況下進行了模擬；最後針對本文所研究的機器人給出了一種比較系統、可靠的緩沖結構設計思路，較好地解決了移動機器人作業過程中外界因素及本身設計中引入的各種不確定誤差問題；本論文研究成果已在本實驗室所開發的樣機上得到實現，經過應用與考核證明其中的分析與設計是切實可行的。
  13. In this dissertation, the numerical computation for the acoustic radiation problem ( arp ) is studied deeply and systematically in the theory, method and the application technique, based on analyzing the situation of the home and abroad on the numerical computation for the acoustic radiation problem. the calculation formulas of the boundary element method ( bem ) for the exterior acoustic radiation problem in the full - space and half - space are deduced, based on the wave propagation theorem ; the arising of the non - unique solutions, which is associated with the application of the boundary integral equation ( bie ) in acoustic radiation problem, is analyzed and proofed ; the improved combined helmholtz integral equation formulation ( ichief ) is presented to overcome the non - uniqueness problem more effectively and reliably ; the determination of the singular integral coefficients on various occasions is analyzed ; the properties and treatments of the singular integrals with different orders axe studied ; the computation program of the cubic spline ichief is developed and its ability to overcome the non - uniqueness problem and feasibility to discrete the surface coarsely with the sufficient calculation precision are examined through examples

    第二章在聲波動理論基礎上，詳細地推導出對應于無限域和半無限域的外部振動聲輻射問題的邊界積分方程計算公式；根據fredholm積分理論，對利用邊界積分方程計算振動聲輻射問題過程中解的非唯一性的產生進行了分析和證明；改進了chief法以提高其克服解的非唯一性的有效性和可靠性；對不同條件下奇性系數的計算、強奇性積分的收斂性及其在變量替換時與普通積分的差異性、不同階奇性積分的計算、數值求積分等進行了研究；開發了三次樣條改進chief法計算軟體，並通過算例考核了該方法在特徵波數處克服解的非唯一性的有效性和在保證計算精度的前提下實現剖分粗化以提高計算效率的可行性。
  14. The digitizer based on pxi bus uses fpga ( field programmable gate array ) to implement 256 points, radix - 2 dit fft ( fast fourier transform algorithm ). the design uses pipelining for fft processing and can accomplish sampling and processing signals of two channels at the same time. in the signal acquisition circuit, - a / d convector is used to enhance the precision of the signal sampling

    在本設計中，採用fpga （ fieldprogrammablegatearray ）實現了256點基2dit演算法復數fft （ fastfouriertransformalgorithm快速傅氏變換演算法）處理器，具有較高的速度和運算精度fft ，設計採用流水線處理方式大大的提高了處理速度，可實現對兩個通道輸入信號的并行採集與處理。
  15. With the recurrent calculation got rid of, the speed of calculation is increased. practical calculations have shown that the new model not only have the high precision but also enables us to enhance the speed of calculation 6 or 7 times. so it is testified that the new model is superior to the spherical harmonics model

    通過將換極后的球諧函數用於彈道計算，得出換極后的球諧函數不僅在計算精度上可達較高要求，而且計算速度也明顯優于未換極的球諧函數（新模型的計算速度是約為換極前模型的6 7倍） 。
  16. The hard work and creative ideas in this paper as follows : understanding on faults of pc ' s pd, analysis of pd inside and outside pc, design of monitoring device, recognize of how to improve accurate of tgs " s measurement, wavelet - transform introduced for signal ' s processing and how to write programs and do simulations of wavelet - transform in matlab5. 3 here etc

    論文主要工作和有新意的內容在於對電力電容器故障的理解，對它內外放電的機理分析，對監測裝置的設計，對如何提高tg占值測量計算精度的再認識，小波變換的引入以及具有針對性的在matlabs . 3下的模擬分析，包括對模擬工具的熟悉與使用。
  17. The neural network methology for heat transfer system of underground heat exchanger was also introduced, which lay emphasis on systematics, entirety and fuzzy systematics, and established predication modeling using neural network. from the computer simulation results, it was concluded that with nn modeling the precision was very high. it is worth to developed and applied for engeering practice and different situation

    本文還介紹了主要從系統性、整體性和非線性上來描述地下埋管傳熱系統的神經網路，並針對不同輸入和輸出變量建立了神經網路預測模型，對埋管換熱進行模擬計算和預測，從計算結果可以看出神經網路的模擬值與實驗值相當一致，計算精度高。
  18. It is proved that the application of the computer - aided design can improve the calculation precision, and shorten the design period. 2

    計算程序的開發不僅使換熱器設計流程更加清晰，也大大縮短了設計周期，提高了計算精度。
  19. The fft inversion method is fit for reconstruction of density distribution with sharp peaks and complex shape. the results of numerical simulations of this method show high inversion accuracy and fast calculation speed

    快速傅立葉變換法適合於重建具有陡峭波峰和復雜形狀的等離子體密度分佈，數值模擬的結果表明該方法具有計算精度高和速度快的特點。
  20. By the theory of z transformation of linear system and matrix, we proved the validation of the averaging filter method using in ietd to cancel oscillation. then we illustrate the disadvantage of using averaging filter and give a new averaging filter that we note as phase - modified averaging filter, which can reduce the disadvantage. at the end of this chapter, we study the potent of reducing the time - cost of ietd by taking account the short duration characteristics of incident impulse

    本文第二章，首先簡述了時域積分方程遞推解法（ ietd ） ，然後推導了應用於旋轉對稱體的，能夠減少計算量的ietd方法，重點闡述並應用線性系統的z變換理論和矩陣理論研究了ietd方法中遇到的穩定性問題，從理論上證明了平滑濾波技術的有效性，指出了它對計算精度的影響，並在分析的基礎上提出了新的相位修正平滑濾波方法。
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