least squares fitting 中文意思是什麼

least squares fitting 解釋
用最小二乘方擬合
  • least : adj （little 的最高級，比較級為 less 或 lesser）1 最小的，最少的 （opp most）。2 最不重要的，地位...
  • squares : 方鋼
  • fitting : n 1 配合，裝配，裝修。2 （衣樣的）試穿。3 〈 pl 〉【機械工程】用具；零件，附件，（接頭）配件。4 ...
  1. The laser radar sub - system determines the heights of the tsp according to the slant height and the oblique angle measured by the laser range finder and the electronic theodolite simultaneously. by lucubrating the motion law of tsp, we decided to compute decent velocities with least - squares procedure & two ranks curve fitting

    地面激光雷達跟蹤測量分系統根據測量到的斜距離和俯仰角確定末敏彈傘彈系統的高度，在深入研究末敏彈穩態掃描過程的運動規律后，通過最小二乘法的二階分段曲線擬合，計算出落速。
  2. 2. doppler frequency shifting and curve fitting differential methods for measuring velocity are analyzed and compared. the least - squares curve fitting methods based on power functions and orthogonal functions are analyzed and compared

    2 .對測量速度的兩種方法，多普勒頻移法和曲線擬合微分法作了分析和比較;對以冪函數族和以正交函數族為基底的最小二乘曲線擬合法作了對比分析。
  3. The second aspect is the study and application of fitting method after introducing curve fitting method, we will study least - squares procedure used frequently in engineering fields. in addition, we will encode according to item requirement and least - squares procedure algorithm, then using the data picked from image processing to fit the equation we needed

    在介紹了曲線擬合方法之後，主要研究工程設計中常用的最小二乘法，根據課題要求以及最小二乘法的演算法要求編寫源碼，將圖像處理后採集來的數據擬合成所需要的方程。
  4. Using the dsd models and forward scattering amplitude computed by the least squares fitting method, the specific attenuations at l - 400ghz have been computed and analyzed, the parameters of " power law " relation between specific attenuation and rainfall rate are obtained. the specific attenuations in qingdao, guangzhou and xinxiang are compared with itu - r specific rain attenuation models

    利用平均雨滴尺寸分佈和點匹配法計算的雨滴的前向散射數據計算和分析了青島、廣州和新鄉地區1 ? 400ghz特徵雨衰減特性，得到了特徵雨衰減與降雨率的指數關系參數，並與itu - r （ internationaltelecommunicationunion - radiocommunication ）特徵雨衰減模式進行了系統的比較研究。
  5. 4. through our research, the whole measuring scheme is finalized for pulse - counting method with analog intervene chosen to measure distance, the differential coefficient method based on the least - squares curve fitting based on power functions chosen to measure velocity and qd optical spot location method chosen to measure angle

    4 .通過研究，最終確定了以模擬插入脈沖計數法測距，冪函數族基最小二乘曲線擬合微分法測速，四象限探測器（ qd ）光斑定位法測角的脈沖激光雷達整體測量方案。
  6. ( 5 ) lastly the testing data was taken to curve fitting in least squares. the fitting results showed that : to the clearance detection the amplitude of output voltage would increase when the clearance between two metal plates increased

    5 ）對檢測數據進行了最小二乘法的多項式擬合，結果表明：對于間隙檢測隨著鋁板間間隙的增大，感應電壓幅值增大；上層板厚度的增加，電壓幅值則減小。
  7. Firstly, several methods are used to test if there is heteroscedasticity in the data. then some variance stabilizing transformation methods are applied to the data. finally, it is pointed out that the least squares fitting may be used to the transformed data

    先用幾種方法對數據是否具有異方差性進行檢驗，然後選擇適當的方法進行變換，最後指出，可以通過對新模型作最小二乘擬合等方法，觀察變換后的模型其數據的擬合程度，以確定模型的優劣。
  8. Combining with practical investigation and analysis, the author presented the fitting equation of the second non - uniform coefficient in which the method of least squares error approximation with the power index regression is used and proposed a modified formula for flow rate per second calculation to precisely determine the size of pipeline and to make the design advanced in technology and reasonable cost

    本課題分析了室外和室內的設計流量公式，通過調查、實測本地區的水量資料，運用相關數學方法分析，提出了適合小區給水管網採用的流量公式。
  9. The application of least squares chaos algorithm for stage - discharge relation curve fitting

    最小二乘混沌演算法在水位流量關系擬合中的應用
  10. The least - squares fitting for regular surfaces, such as planes, spheres, cones, tori to 3d data points is researched. the efficiency of computing is improved greatly and the effect of singularities on fitting is avoided

    研究了規則曲面的擬合演算法，給出最小二乘法擬合平面、球面、圓柱面、圓錐面、圓環面等規則曲面的方法，這些方法的顯著優點是提高了計算效率，避免了擬合過程中奇異點的影響。
  11. 3 j uttler b, felis a. least - squares fitting of algebraic spline surfaces. advances in computational mathematics, 2002, 17 : 135 - 152. 4 yang z w, deng j s, chen f l. dynamic implicit curve reconstruction based on approximate geometric distance

    其中廣義特徵向量擬合模型能較好地反映目標形狀的拓撲結構，距離函數則近乎完美地刻畫了目標的幾何信息，因此所得初始隱式曲線曲面能很好地適用於動態重構的迭代過程。
  12. Phase - shifting errors have a great influence on the measuring - accuracy. a few of algorithms have been developed to solve linear phase - shifting errors, but ca n ' t solve the problem of random phase - shifting errors. an iterative least - squares fitting method has been proposed by in - bok kang to solve random phase shift errors in each interferogram

    在這種方法中相移的誤差對測量結果的準確性有較大影響，雖然已經出現了不少演算法能解決線性相移誤差，但要解決相移過程中的隨機相移誤差問題，還存在一定的困難。
  13. For h - d scattered data, local weighted least - squares fitting ( llsf ) methods for approximation and interpolation are respectively put forward and the latter is got by adjusting weight function in the former case, and the interpolating method is also used to construct hyper - surface models with the radial function. the problem of choosing weight function during local least square approximation is discussed and two good weight functions are given : one with a parameter, the other with no parameter. based on them

    二、對非規則區域上分佈的h - d數據，提出了散亂數據超曲面擬合的局部最小二乘逼近法。通過對局部最小二乘逼近的權因子作適當的改進，得到了擬合精度較高的局部最小二乘插值法，還用徑向基函數構造了超曲面模型，找到了一種性質好帶參數的權函數以及另一種有著普遍精度性質的不含參數的權函數，獲得了較好的逼近效果。
  14. The images to be processed is obtained in condition of nonuniform illumination. a threshold surface by interpolating zero - crossing points is used to segment image to avoid influence of nonuniform illumination. then the destination region can be detected using the method of pattern recognition and the method advoid the influence of nonuniform illumination effectively. the contour description is obtained by fitting at least squares principle

    論文在分析當前圖象分割的現狀和趨勢的基礎上，採用基於log運算元的動態閾值選取對圖象進行分割，以克服非均勻光場給圖象分割帶來的影響，然後通過對區域特徵的提取和分類準則的確定，準確識別出目標區域。
  15. The estimation procedure is based on the steady - state characteristics versus slip curves. the sum of squares of differences between calculated and experimental characteristics is employed as the fitting criterion. the machine parameters are obtained by minimizing the least - squares cost function using genetic algorithms

    該方法利用電機穩態特性曲線，以特性計算值和實驗值的擬合誤差的平方和作為判斷準則，通過應用遺傳演算法最小化二乘準則函數來獲取電機參數。
  16. A mathematical method for optimum fitting the measured lift data of the non - symmetrical cam profile by using the least squares and the floating orthogonal lattice algorithm is presented

    本文採用最小二乘法和浮動正交網格法對非對稱型配氣凸輪的實測升程數據進行了優化數學擬合。
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