指數變換 的英文怎麼說
中文拼音 [zhǐshǔbiànhuàn]
指數變換
英文
exponent transform-
Through the detailed analysis of the aaf, the defection of using chirp - fourier transform in guidance radar signal processing is pointed out
通過對加速度模糊函數的形態分析也指明了針對線性調頻信號的二次相位匹配處理（ chirp - fourier變換）在應用到制導雷達信號處理中所存在的缺陷。Special metamerism - index for pairs of samples at change in illuminant
試樣對光變換條件配色指數The other research purpose is to discover characteristic information and reliable methods of reflecting spinal cord damage. due to typical damage indicators, amplitude and latent period, have bugs such as limited information and weak stabilities, this project recommends applying time - frequency analysis to monitoring spinal cord function. through analysing and comparing typical signal with stft and cwt, it is proved indicators under time - frequency distribution can be better in reflecting signal changes, espcially the wavelet transformation
針對目前ep監測中判定脊髓損傷的指標（波幅和潛伏期）存在信息量相對較小、穩定性較差的缺陷，本課題提出利用時頻分析技術對術中脊髓功能監護進行研究，通過短時傅立葉變換和小波變換分析和比較典型信號的時頻分佈，證明時頻特徵參數能更有效的提取信號的變化信息。During flood years, the center of negative anomaly is around ural mountains, the center of positive anomaly is around high - latitude of east asia and another negative and positive center are over okhotsk sea and the north - west pacific, respectively
通過對夏季旱澇等級指數的morlet型和mexicanhat型小波變換分析，發現山東夏季旱澇指數主要存在著2 5年和7年左右的周期振蕩。A new fractal - based infrared image feature extraction method is presented and the detailed theoretic analysis and implement procedure of this algorithm is submitted and tested in some experiments. with the limitation of the line detection based on traditional hough transform that the information of the length and the end points of the line is unavailable, a new algorithm which makes use of the accessional strategy based on precognition information is put forward to meet the demand for more information of the line, simulation results show this method is effective. finally, the whole process of airport target recognition is presented and the result images are also given
使用分形方法提取目標的特徵，在知識指導下，提出了一種基於目標特徵模型的降維的形態學分形維數計算方法，對傳統分形方法進行了改進，從理論上推證了演算法的合理性，並對演算法進行了模擬分析；針對傳統hough變換無法獲得線段端點和長度信息的局限性，提出了一種基於目標特徵先驗知識的hough變換融合策略，通過引入目標先驗知識，可以有效地獲得直線信息；對信息多而復雜的機場目標採用基於知識的目標識別方法，使用置信度模摘要型實現不確定推理，對目標進行識別判斷，將知識貫穿于整個識別過程中，對目標進行了有效地識別。Fast algorithms of both discrete and orthonormal wavelet and wavelet packet coefficient are diagrammatized to be introduced. daubechies wavelet is applied to help to discuss the application and test on signal filtering and noise reduction with the principle and threshold implementation ; the basic principle to pickup the fault characteristics is introduced mainly about the relations between the maximum module and signal saltation point and how to characterize the saltation point with lipschitz exponent
展示了離散正交小波變換的mallat快速演算法和小波包系數分解的快速演算法；重點應用daubeches小波探討了小波變換在信號濾波去噪中的應用和實驗，闡述了其基本原理和通過閾值化處理實現濾波的具體方法；探討了用小波變換進行故障特徵提取的原理，說明了小波變換模極大值和信號突變點之間的關系以及怎樣用李氏指數來表徵突變點的性質。The basic theory of wideband signal processing is discussed and presented. the coherence among cwt, wcp and waf is pointed out emphatically
論述了寬帶信號處理的基本理論，指明了連續小波變換與寬帶相關處理、寬帶模糊度函數的一致性。And the resemblance is pointed out between continuous wavelet transform ( cwt ) and waf. in the course of computing waf, the scaling replica is very important. based on the properties of cwt, three approaches have been proposed for the scaling of a wavelet that has no analytic form
詳細闡述了寬帶信號及系統的三個條件、寬帶系統的回波模型和寬帶模糊度函數的概念，指出了連續小波變換（ cwt ）與寬帶模糊度函數的驚人相似之處。We can find a polynomial model of a time series in case its associated matrix is not diagonal and not of full rank by using the transformations of the exponential and the logarithm
對于不能對角和不滿秩的時間序列矩陣，運用指數對數的可逆變換及相關的列變換化為滿秩可對角的時間序列矩陣，從而找到代數多項式模型。Specially, based on risk - metric and factor variables, the author discusses multi - factor asset pricing model. in theoretical analysis, the author attempts to release the assumption of index ' s random walk, proves a portfolio selection model suitable for the linear index level moreover, based on assets un - exchangeable, the author brings forward asset pricing models for b - shares, h - shares and non - circulated - shares. the author also brings forward multi - factor asset pricing model based on risk - metric indices, such as coefficient of beta, standard variance, standard semi - variance, average absolute deviation, value at risk, and factor variables, such as circulated market equity, exchange ratio, short - term historical return
在理論分析時，作者嘗試放鬆指數水平滿足隨機遊走過程的假設，推導出指數水平呈線性趨勢的資產組合選擇模型；此外，作者基於資產不可交易這一假設，提出了b股、 h股和非流通股等情形的資產定價模型，並基於系數、標準差、標準半方差、平均絕對離差和風險價值等風險度量指標以及流通市值、換手率、短期歷史收益率等因素變量提出了四因素資產定價模型。She is as in a field a silken tent at midday when the sunny summer breeze has dried the dew and all its ropes relent, so that in guys it gently sways at ease, and its supporting central cedar pole, that is its pinnacle to heavenward and signifies the sureness of the soul, seems to owe naught to any single cord, but strictly held by none, is loosely bound by countless silken ties of love and thought to everything on earth the compass round, and only by one ' s going slightly taut in the capriciousness of summer air is of the slightest bondage made aware
她如田野中的一頂絲綢帳篷在夏日的中午，微風吹乾了她上面的露珠也吹柔了懸掛的細繩她悠然自得地擺動支撐她的雪松樹干透過她的頂端直上雲霄見證了她靈魂的存在看上去，她不被任何單一的繩索束縛只被無數愛和思想的絲繩牽動沿著指南針方向，聯系萬物在夏日變換無常的微風中只有受到些微的阻礙時她才意識到一絲的牽伴。The sampling method by coupling criticality source direction biasing and the exponential transform is established for duct shielding calculation
摘要建立臨界源方向偏倚和指數變換相結合的藕合抽樣方法，用於反應堆孔道的屏蔽計算。Finally, for the definite mechanism and indefinite size of industrial robots ' executor as well as the size ^ optimization goal, the mathematic model is set up to optimize the executor ' size with using complex optimization method. next, for the optimized executor, the desired trajectory and planning goal, the kinematics model and proper referent and motive coordinates systems are set up. by making use of the result of the previous motion analysis, genetic algorithm is applied to the trajectory planning of executor
最後，對于結構給定而構件尺度未定的工業機器人執行機構，先根據機構尺度優化目標，建立數學模型、用復合形法進行構件尺度優化；再根據給定的期望軌跡和規劃目標，建立數學模型，利用復指數變換法對執行機構進行運動分析的結果，採用進化演算法對工業機器人進行軌跡規劃。In order to simplify the further analysis, the derivative of this form is also put forward. thirdly, the coordinate matrix transformation that is popularly used and the complex index form transformation are applied to the living examples of industrial robots respectively with the proper referent and motive coordinate systems
其次，對于給定的工業機器人實例，建立起適當的參考、運動坐標系，對比應用了坐標矩陣變換法和復指數變換法，來分析工業機器人執行機構的運動問題。While two solutions being contrasted, it is shown that the complex index form transformation presented by the paper is an intuition ! stic and convenient tool to analyze the industrial robots " executor motion
由求解過程可以看出，復指數變換法是一種解決此類問題的有效的、直觀的方法。The essentially non - oscillatory characteristic difference method for convection - diffusion equation
構造對流擴散方程高精度非均勻網格格式的指數變換方法Secondly, the basic concept of the complex index form of the 3 dimensional vectors and the way of coordinate transformation, the complex index form transformation, are discussed
然後，提出了三維矢量的復指數形式，並探討了其基本的坐標變換形式，即復指數變換法及其導數形式以便於進一步的分析。Yet these very failings make the big mac index useful, since looked at another way it can help to measure countries ' differing costs of living
但是，這些缺點讓巨無霸指數指數變得很有用，因為換個角度看，巨無霸指數可以幫助衡量不同國家的生活成本。In sample problem studying, the optimal source direction biasing parameter p1 、 exponential transform parameter p2 are supposed and the variance of duct calculating results by using this method is shown to reduce efficiently
提出了算例問題的最佳源方向偏倚參數p1和指數變換參數p2 ，得到的耦合抽樣方法更能有效降低計算結果的方差。Based on the multiplicative speckle model, a new filtering algorithm based on wavelet transform was developed. first, the multiplicative speckle noise was changed by logarithmic transform into additive noise, which simplified the subsequent speckle suppression. the speckle suppression was carried out in the process of wavelet transform of the logarithmic transformed image
針對斑點噪聲的乘性模型特點，構造了一種基於小波分析的濾波器：對sar圖像進行對數變換，利用小波變換對對數圖像進行濾波處理，再通過指數變換得到去噪圖像。分享友人