linear approximation 中文意思是什麼

linear approximation 解釋
線性逼近
  • linear : adj. 1. 線的，直線的。2. 長度的。3. 【數學】一次的，線性的。4. 【動、植】線狀的；細長的。5. 由線條組成的，以線條為主的，強調線條的。
  • approximation : n. 1. 接近；近似。2. 【數學】近似值。3. 概算，略計。
  1. This dissertation emphasizes on the creation of image space, the author present a display system in which screen moves with a sinusoidal velocity profile to create image space. this paper uses linear approximation to make the system display homogeneous graphic and analyzes worst - case positional error due to linear approximation

    本論文重點分析了顯示單元中成像空間的構造，提出屏幕按正弦曲線運動的方式來構造成像空間，用線性近似的方法得到均勻的圖像，並分析了由於線性近似帶來的最大屏幕位置誤差。
  2. It is well known that the wavelet liner approximation ( i. e, truncating the high frequencies ) can be approximate smooth singals very efficiently. however, for example, piecewise continous signals with large jump in signal value or in its derivatives, standard wavelet linear approximation techniques cannot achieve similar results for signals which are not smooth. to overcome these problems within the standard wavelet transform framework, the paper proposed the double adaptive wavelet transforms

    眾所周知，小波的線性近似（只用低頻系數而不採用高頻系數進行重構的方法稱為線性近似）能非常有效的近似初始的光滑信號。然而對于非光滑信號，例如具有跳變點的分段連續信號，標準小波的線性近似就不能獲得如光滑函數那樣好的結果。
  3. Multi - channel deconvolution, based on multi - channel signal analysis, is presented to recover receiver function from three - component teleseismic p waveforms clustered within certain backazimuth and epicenter distance, to increase the resolution of receiver function. wavelet inversion is also introduced to broadband receiver function, to solve for nonuniqueness cased by linear approximation of nonlinear problem, and broadband receiver function is decomposed into multi - resolution versions, and the inversion result for the low - resolution version is iteratively taken as the initial model for the high - resolution, and gradually obtain the inversion model for broadband receiver function

    為克服廣義線性反演對初始模型的依賴性，並保持其快速收斂的特點，本文首次將小波變換引入到接收函數波形反演，將接收函數分解到不同的分辨尺度上，分別進行廣義線性反演，並將低解析度的反演結果作為高解析度反演的初始模型，漸近地獲取寬頻帶接收函數的模型，克服了非線性問題線性化帶來的非唯一性。
  4. Analyses of valid range for the linear approximation in a single - mode laser

    單模激光系統線性化近似適用范圍的分析
  5. In the main - process, the coordinates of nodal points on part outline curve can be calculated by replacing this curve with a linear approximation. the codes expressed in nc program form which can be recognized by nc machine tool are got according to the coordinates of these nodal points in the post - process

    在前置處理中，用直線逼近零件輪廓，得到輪廓曲線的節點坐標：在後置處理中，根據這些節點坐標按照數控程序的格式得到數控機床可以辨認的程序代碼。
  6. Applications of the linear approximation

    線性逼近法的應用。
  7. In this paper, the general structure of block cipher together with its related properties is firstly discussed, then the main non - linear component of s - boxes in block cipher is analyzed. as to the boolean function in binary field, we studied its non - linearity, linearity structure, output bit independence criterion ( big ), balance, completeness, strict avalanche criterion, propagation criterion, correlation immunity, linear approximation table and xor distribution table. we also discussed the pile - up lama used to compute the combination linear probability and showed an instance of its application

    本文首先討論了分組密碼的一般結構及其相關特性，此外還有分組密碼主要的非線性組成部分s盒。對於二元域上的布爾函數主要討論了其非線性性、線性結構、比特獨立準則、平衡性、完整性、雪崩準則、傳播準則、相關免疫性、線性分佈表及異或分佈表等特性。對計算組合線性概率的迭加定理我們也進行了具體的討論，並給出了運用事例。
  8. A linear approximation of the non - linear gmsk is proposed to help gmsk to be readily accommodated into a sdr

    對非線性的gmsk分析了線性近似方法，這對于在軟體無線電中實現gmsk有重要意義。
  9. These kinds of ? tronger ? algorithms do not need to retrieve correspondence and branching problems. the contour - spreading algorithm is proposed to calculate distance field quickly within the complexity 0 ( n ). the intermediate surface is generated by linear approximation, while in conventional methods, it is tiled between a designated layer of contours and the original lower slice or upper slice of contours

    和傳統方法比較，它們生成的曲面都是精確通過采樣點，但是對于中間曲面的生成（在有分枝問題和對應問題時）方式不同，傳統方式是指定中間層的位置，在中間層按一定方式生成一個輪廓線，然後分別與上下層進行曲面鑲嵌，而基於距離場技術的方法則是通過線性插值的方式來產生中間曲面。
  10. This paper is devoted to nonlinear approximation, namely, m - term approximtion of anisotropic smooth periodic functions. nonlinear approximation is the important part of approximation the - ory. it means that the approximants do not come from linear spaces but rather from nonlinear manifolds. the advantages of nonlinear approximation show that one can achieve a given accuracy of approximation while assuming less smoothness on the function in the nonlinear case than is necessary in the corresponding linear approximation. nonlinear approximation is used significantly in many applications, such as image processing, noise removal and the solution of operation equations and so on

    非線性逼近與線性逼近最大的區別在於所用的逼近子空間不是固定的，而是依賴于被逼近的函數其主要優點是對光滑度較低的函數仍可以得到較高的估計階。隨著小波和樣條的廣泛使用非線性（ m項）逼近成為較熱門的話題，它在圖象處理，聲的傳播，運算元方程的求解等方面都有很多應用。
  11. Linear approximation of lambert - beer ' s law and its application to ultra - micro analysis by atomic absorption spectrometry

    比耳定律的近似線性關系應用於原子吸收光譜法的超微量分析
  12. The objective function of the qp problem is a quadratic function which is an approximation of the lagrangian function of the constrained problem and the constraints of the qp problem are linear approximation of the constraints of the constrained problem

    這些二次規劃子問題的目標函數是原約束最優化問題的lagrange函數的二次某種近似，其約束條件是原約束最優化問題的線性逼近。
  13. The analysis of valid range of the linear approximation in a loss model with a single - mode laser

    三階近似激光模型線性化近似適用范圍的分析
  14. The expressions for correlation functions, power spectrum and correlation time of the intensity of a single - mode laser driven by two white noises with a exponential function correlation form were calculated by linear approximation method

    應用線性近似方法，計算了具有指數形式關聯的兩白噪聲驅動下單模激光光強的關聯函數、功率譜及關聯時間。
  15. When nonlinear degree is high, the linear approximation error must be considered

    因此在非線性程度較高時，必須考慮減少線性近似誤差。
  16. In section 4. 2 we analyze its main idea and algorithm in detail, two relevant theorems included ; section 4. 3 provides plenty instances so to explain its nonlinear dimension reduction ability, section 4. 4 propose a combined method that integrates the advantage of various methods. in section 4. 5 we analyze some significant problems in lle, including the locality of manifold representation, the choice of the neighborhood, the intrinsic dimension estimation and the parametric representation of mapping. in section 4. 6 we design an algorithm for estimating the intrinsic dimension in the base of locally linear approximation and discuss the choice of its parameters

    第四章是本文的重點內容，研究一種全新的非線性降維方法? ?局部線性嵌入方法，對它的思想和演算法進行了詳細的分析，給出演算法兩個相關定理的證明；第三節對比主成分分析，通過實例說明局部線性嵌入方法的非線性降維特徵；第四節在此基礎上提出了旨在結合兩者優勢的組合降維方法；第五節提出了局部線性嵌入方法中存在的若干關鍵性問題，包括流形的局部性、鄰點的選擇、本徵維數的估計和降維映射的表示，第六節基於局部線性近似的思想提出了一種本徵維數的估計方法，設計了實用演算法，結合實例對演算法中參數的選取進行了討論；最後一節提出了一種基於局部線性重構的圖形分類和識別方法，將其應用於手寫體數字的圖像分類識別實驗，實驗得到的分類準確率達96 . 67 。
  17. Two kinds method of design binary subwavelength diffractive microlenses are illustrated with emphasis. i obtained the result that the method of subwavelength pulse - width modulation is better than the method of linear approximation for continuous phase piece in designing binary subwavelength diffractive microlenses by comparing them

    重點說明了二臺階亞波長衍射微透鏡的兩種設計方法，並對兩種方法作了比較，得出了亞波長結構的脈沖寬度調製法優于連續位相的線性進似法的結論。
  18. Based on image sparse representation, researched the background, development and non - linear approximation of the multiscale geometric analysis, and respectively analyzed the advantages and disadvantages. finally, pointed out the developing direction

    摘要以函數的稀疏表示為主線，詳細介紹了各種多尺度幾何分析產生的背景、發展歷程和逼近性能，並分析了它們各自存在的優缺點，最後指出了其發展方向。
  19. In order to obtain an optimal estimate of the tilt angle and angle velocity, an indirect kalman filter configuration combining a rate gyroscope sensor and an accelerometer is implemented. because of the extreme nonlinearity of the two - wheeled self - balancing robot, application feasibility of nonlinear system control strategy based on linear approximation method, exact linearization and intelligent control have been investigated. according to robustness, balancing performance and environment adaptability, robust tracking control, linear quadratic regulator and fuzzy model reference learning control are implemented to the velocity controller

    針對具有強非線性的前進子系統，論證了基於近似線性化、精確線性化及智能控制的非線性系統控制策略的應用可行性，據此按照不同性能要求設計了三種前進速度控制器:漸近跟蹤魯棒調節器簡單精確，具有良好的干擾抑制能力;二次型最優跟蹤控制器，在耗能最小的條件下，大大提高系統的平衡能力;而基於動態聚焦學習的模糊模型參考學習控制則兼具平衡性能好、環境適應性強、精度高及魯棒性好的優點。
  20. However, the performance of these algorithms that are based on linear approximation degrades considerably in highly nonlinear situation. whereas the ekf requires the evaluation of the jacobian to obtain the observation matrix, the cmkf needs it to compute the measurement error covariance. both of them employ linear approximation, and thus linear error is inevitible

    論文第四章分析了ekf和cmkf在某些情況下跟蹤性能不理想的原因： ekf需要對量測方程進行線性近似， cmkf在計算轉換測量值誤差的均值和方差時同樣要進行線性近似，因此無法避免線性化誤差。
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