least squares identification中文意思是什麼

least squares identification解釋
最玄乘方識別

  • 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
  • identification: n. 1. 認出,識別,鑒定,驗明(罪人正身等)。2. 【心理學】自居作用。3. 身分證。4. 【數學】黏合,同化。

※英文詞彙least squares identification在字典百科英英字典中的解釋。

  1. The adjustment model of gps network with least squares collocation

    網平差模型及其應用
  2. The dispersion model, with axial dispersion only was used to describe the liquid flow in the downcomer. the model parameters were fitted by the least - squares method. it was found that the curve of dispersion model fitted the experimental rtd curve well

    本文利用一維軸向擴散模型對降液管中液體流動進行了數學描述,用時間域最小二乘法擬合了模型參數,模型方程所作曲線與rtd曲線吻合較好。
  3. At first, this paper analyzes the factors of water - sand influencing water level of yellow river and the feasibility just using the factors of water - sand to study water level, and collects the corresponding data ; secondly, because there are strong nonlinear relation in the corresponding data, by meticulous theory analysis, this paper integrates basic nonlinear analysis method, theory of random analysis, method of least squares and so on. it puts forward a method which can get the high accuracy simulation of the data, perfects the multi - factor analysis of variable ( over three factors ) of the statistic ; thirdly, it applies the method to the approximation of corresponding water level process which belong to the capacity of sand of middle - high and middle - low, and get the high - accuracy simulation about the typical nonlinear relation ; at last, this paper definitudes the main influence mode that the capacity of sand. it mainly unite with other factors to work on the water level in the yellow river lower reaches ; mor eover, this paper analyzes the difficult point and the direction of improvement to realize the accuracy forecasting of the flood level of erodible - bed channel

    首先,系統分析了影響黃河水位的水沙因素,及僅用水沙因素有效研究水位的可行性,並按變量對應思想採集它們的相應數據;其次,由於相應水位過程數據中含極強的非線性關系,本論文經細致的理論分析,將基本的非線性分析方法、統計建模方法、隨機分析理論、最小均方誤差原則等等數學理論及方法有機揉合,提出了能有效實現這類數據高精度擬合的分層篩選法,並改進了統計學中多因子(三個以上)方差分析法;再次,將這一方法用於黃河中高及中低含沙類洪水相應水位過程的擬合,實現了這一典型非線性關系的高精度擬合,各年汛期上下游相應洪水位過程的擬合誤差都較小;最後,明確黃河下游含沙量對水位的主要影響方式,即含沙量主要是與其它因素聯合對水位作用;另外分析了要實現變動河床洪水位過程準確預報的困難所在及改進方向。
  4. Using gyro measurements during periods of thruster firing, with thruster outputs, mass property identification is achieved through recursive least squares algorithms on the basis of the refined dynamics equation. the approach addresses the issue by segmenting the problem into two sub - problems which both allow closed form solution to reduce computation load

    該方法利用衛星上的陀螺輸出和推力器控制指令作為演算法的輸入,在修正的衛星姿態動力學模型基礎上,推導了衛星質量特性在線辨識遞推最小二乘演算法,將質心位置和轉動慣量矩陣的辨識解耦以降低辨識演算法的維數,減少計算量。
  5. A new kind of optimal selection cluster algorithm ( osca ) is presented in this paper, and a new hybrid algorithm is obtained by combining osca with least squares method and gradient algorithm. the algorithm can synchronously solve the identification problems of the new fuzzy neural network model ' s structure and parameters

    提出一種新型優選聚類演算法,並將該演算法與最小二乘法和梯度下降法相結合,形成一種新的混合學習演算法。該演算法能同時解決上述新型模糊神經網路模型結構和參數的辨識問題,進一步提高了模型的辨識精度。
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