piecewise-linear 中文意思是什麼
piecewise-linear
解釋
逐段線性-
Secondly, the effort is made to develope new type of transition element for multi - scale fatigue damage simulaton of long - span structures for the transition between elements for the hot spot stress analysis and the structural element. the linear and piecewise linear interplotion function for displacement interplotion are used for the transition element formulation according to the displacement compatibility requirement between element interfaces
在綜合已有的構造過渡單元模型關于位移插值形式的基礎上，通過採用分段線性位移插值模式和線性位移插值方式，並在位移模式中引入非協調位移模式，強迫構造單元通過分片試驗，構造了一種用於疏密網格單元連接過渡單元。 -
Study on analytic approach for extracting periodic orbits of piecewise linear chaotic systems
解析法提取分段線性混沌系統周期軌道的研究 -
There are several effective methods which are used to improve image contrast, such as piecewise linear stretch, histogram equalization and histogram normalization and so on
採用圖像對比度增強的方法改善影像灰度反差。主要的對比度增強方法有分段線性增強、直方圖均衡化和直方圖正態化等。 -
Sm scales the nonlinear variation of tangential modulus during monotonic loadings into a piecewise linear distribution, which can easily be modified to simulate specific characteristics of soil material behavior during cyclic loadings. sm can simulate dynamic stress - strain response of arbitrary cyclic loadings
該模型將單調加載情況下呈非線性變化的切線模量量化成一種呈分段線性分佈的幾何結構，並通過對這種結構加以變換，來描述循環加載情況下材料的特性。 -
Dissipativity of linear multistep methods for nonlinear differential equations with piecewise delays
一類求解分片延遲微分方程的線性多步法的散逸性 -
Based on the theory of piecewise - linear, the paper carries through the research of model self - adaptive control to electric arc - furnace electrode regulator system ( eafers ), and the digital self - adaptive control law of reference model is deduced. then, we designed the software simulation system of eafers according to the law, though which we studied the character of eafers. finally, a set of physical model of eafers, which is realized by hardware circuit, is designed according to the former research
本文首先應用分段線性化理論，對電弧爐電極調節系統的模型參考自適應控制演算法進行了研究，推導出全數字化的模型參考自適應律；然後根據推導出的自適應律成功的設計出了的軟體模擬系統，用軟體對電弧爐電極控制進行了模擬研究；最後利用電子電路構造出一套完整的電爐煉鋼電極控制硬體模擬系統，對電爐電極調節進行了實驗室電路模擬研究。 -
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。 -
Based on piecewise linear model, this paper proposes an estimation method that first estimates the slope of linear variant and the channel impulse response at the middle time of the current ofdm symbol using pilot sequences, and then estimates the whole channel impulse response through the estimated parameters
該演算法首先利用導頻序列估計出當前ofdm符號間隔內通道線性變化的斜率和中間時刻通道的沖激響應值，然後根據線性模型利用估計出的參數得到當前符號間隔內所有時刻上的通道沖激響應。 -
In order to analytically deduce the characteristic scaling law, we have constructed a simplified piecewise linear model that describes the characteristic phenomenon so that we can quantitatively and analytically deduce the sudden change of the rules of the fractal dimension of the strange repeller and the averaged lifetime in the region occupied by the original attractor at a critical parameter value when the repeller disappears
為了解析地導出這種激變的特徵標度律，我們構造了一個描述這種特徵現象的簡化分段線性模型，並藉助它定量地解析描繪了當奇異排斥子在臨界參數值消失時，奇異排斥子的分數維和在原混沌吸引子區域迭代的平均生存時間的突變。 -
To guarantee the validity and speediness insimulation, the back - emf is generated using piecewise linear curves. in the double loop of control system, a pi controller is adopted in the speed loop and a hysteresis current controller is adopted in the current loop
為保證模擬快速性和有效性，模型採用分段線性法生成梯形波反電動勢，系統採用雙閉環控制:速度環採用pi控制，電流環採用滯環電流控制。 -
61 duchamp t, certain a, derose t, stuetzle w. hierarchical computation of pl harmonic embeddings. technical report, university of washington, july 1997. 62 floater m s. one - to - one piecewise linear mappings over triangulations
本文將對目前的主要曲面參數化方面的工作進行總結，重點介紹調和映射共形映射以及保積映射的基本原理，及其在平面參數化中的應用。 -
The author puts forward the thought of analyzing bifurcation and chaos in dc / dc converters with the theories of nonlinear dynamics, and the thought of controlling nonlinear problems with linear controlling methods of modern control theory. chapter three ( research on bifurcation and chaos in pwm dc / dc converters ) first theoretically analyzes and emulates period - doubling bifurcation of pwm dc / dc converters with the " inverse " piecewise numerical emulation. then the author analyzes in detail the sampled - data model, the mathematical model, which is suitable to the nonlinear research of dc / dc converters
第三章（ pwm型dc dc變換器中分岔與混沌的研究）首先採用「逆向」分段數值模擬法對pwm型dc dc變換器中的倍周期分岔進行了理論分析與數值模擬；接著詳細地分析了適合於dc dc變換器非線性研究的數學模型一采樣數據模型，提出了dc dc變換器中存在環面分岔與鞍結分岔的可能性；最後通過電路實驗驗證了在電路參數發生變化時， dc dc變換器經歷一系列的倍周期分岔通向混沌的演化過程，並對混沌態下dc dc變換器的輸出特性進行了分析與小結。 -
In this paper a novel framework is presented for 2 - d shape interpolation using the intrinsic shape parameters of a piecewise linear curve based on skeleton
本文基於骨架概念，根據多邊形內在量插值思想給出一個新穎的二維形狀插值演算法框架。 -
A stabilizing receding horizon control algorithm based on piecewise - linear terminal weighting matrix is proposed for discrete linear systems with constraint. the piecewise - linear terminal weighting matrix is off - line computed by lmi optimization problems and the on - line computation reduces to the simple switch of the piecewise - linear terminal weighting matrix. the main advantage of this approach is that a trade - off between feasibility and optimality is obtained
作者提出了一種基於分段終端加權的預測控制演算法，通過離線求解線性矩陣不等式優化命題構造分段終端加權矩陣，在線運行時根據系統狀態動態切換終端加權矩陣，既保證了演算法的穩定可行域，又考慮了演算法的最優性。 -
Based on histogram research, two novel image enhancement algorithms are put forward. it is adaptive piecewise linear transform
以灰度直方圖作為統計手段和依據，提出了自適應灰度分段線性變換的圖像增強演算法。 -
Up to now, the theory researches about chaotic phenomenon are mature. there are many chaotic models that produce the chaotic sequences, such as logistic map, tent map, chebyshev map, piecewise linear map. however, the application researches about chaos are limited to the fields of data encryption and secure communication
混沌現象是當前理論研究和工程應用的前沿和熱門課題，混沌理論的研究已較成熟，混沌模型也很多，如典型的logistic映射、 tent映射、 chebyshev映射以及分段線性映射等，而其應用研究主要局限於數據加密、保密通信領域。 -
Abstract : a bandgap voltage reference is presented with a piecewise - linear compensating circuit in order to reduce the temperature coefficient. the basic principle is to divide the whole operating temperature range into some sub - ranges. at different temperature sub - ranges the bandgap reference can be compensated by different linear functions. since the temperature sub - range is much narrower than the whole range, the compensation error can be reduced significantly. theoretically, the precision can be improved unlimitedly if the sub - ranges are narrow enough. in the given example, with only three temperature sub - ranges, the temperature coefficient of a conventional bandgap reference drops from 1. 5 10 - 5 / to 2 10 - 6 / over the - 40 to 120 temperature range
文摘:提出了一種採用分段線性補償的方法來實現高精度帶隙基準，其基本原理是將整個溫度區間分為若干個子區間，在不同子區間上採用不同線性補償函數達到最佳補償.由於溫度區間縮小，補償誤差也隨之減小，從而在整個工作溫度間上的補償誤差也縮小.理論上，只要溫度子區間取得足夠小，就可以達到任意精度.示例中將- 40 120的溫度區間僅分為三個子區間，平均溫度系數就從1 . 5 10 - 5 /減小到2 10 - 6 / -
An off - line algorithm of constrained model predictive control based on piecewise - linear feedback control law is presented to solve its potentially high on - line computational demand. the piecewise - linear feedback control law is off - line computed by lmi optimization problems and the on - line control computation reduces to the simple evaluation of the defined piecewise linear function, which makes the online computational efficiency significantly improved. 4
針對預測控制滾動優化命題的在線計算任務大，作者提出了一種基於分段反饋的離線預測控制演算法，通過離線求解線性矩陣不等式優化命題構造分段反饋控制律，在線運行時只需實施滿足條件的反饋控制律，極大地提高了控制器在線計算效率。 -
We obtain an upper bounded estimate for the convergence rate of the piecewise linear interpolation
摘要給出了分段線性插值收斂速度的一種估計。 -
The optimal control of uncertain piecewise linear systems is converted to the optimization of upper and lower bounds of the cost function
摘要將不確定分段線性系統的最優控制問題轉化成最優控制性能上界的優化問題。
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