級數逼近 的英文怎麼說

中文拼音 [jíshǔbījìn]
級數逼近 英文
progression approximation
  • 級 : Ⅰ名詞1 （等級） level; rank; grade 2 （年級） any of the yearly divisions of a school course; gra...
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 逼 : Ⅰ動詞1 （逼迫; 給人以威脅） compel; force; drive; threaten 2 （強迫索取） extort; exert pressure ...
  • 近 : Ⅰ形容詞1 （空間或時間距離短） near; close 2 （接近） approaching; approximately; close to 3 （親...
  • 級數 : [數學] progression; series; number of stages; number of steps; stage number級數變換 transformatio...
  • 逼近 : 1 （靠近 接近） press on towards; gain on [upon]; approach; crowd on; close in on; draw near 2 [...
  1. Based on the fourier series digital approximation method, the optimal design of flat - top and high isolation pass band frequency response interleaver has been studied. at last a solution of high isolation ( > 45db )

    用傅立葉級數展開數值逼近的方法進行了高隔離度平頂通帶頻響全光纖奇偶交錯濾波器的優化設計，提出了隔離度大於45db通帶平坦濾波器的製作方案。
  2. A novel three - level ac chopper is proposed, which is a new multi - level converter applied to high voltage conversion, and utilizes more electric levels to form output voltage and decrease the harmonic content of output waveform

    摘要提出一種用於高壓電能變換的新型三電平交流斬波電路，該電路允許使用低電壓等級的器件完成高壓電能變換，並採用較多的電平數去逼近所希望的波形，使輸出電壓或電流的質量大大提高，諧波含量減少。
  3. Some experts and scholars have discussed areas between city and countryside, but no one divided the idiographic boundary about it. second, as defined factors of rank and grade, it chose the factors affecting the city and countryside. finally, at the ways of evaluating land price, it spread the using scope of the profit, cost, and rating of reduction in the method of income reduction and the exploitation expenses of the land, the tax in the method of cost approach

    在此之前，雖然有關專家和學者已對城鄉結合部作了不少論述，但均未曾劃分出具體界線；其次，確定定級因素時，選擇了對城市和鄉村均有影響的定級因素；最後，在土地估價方法中，拓寬了收益還原法中的土地總收益、總費用、還原率以及成本逼近法中的土地開發費、稅費等參數的應用范圍。
  4. The approximation theory on the p - adic walsh - fourier riese average

    級數黎斯平均的逼近定理
  5. Since time sectional scan method ( tssm ) acts as the dominant partner in the panel display, attention is drawn to the aspect in the drive methods. according to functions approximation theory, the method of complex merging approximation tssm which utilize multiple dissimilarity @ subclasses to achieve precision visual perception scale control is proposed. the comparison examples are given thereinto

    首先，針對這種在平板顯示器顯示技術方面佔主導地位的驅動方法進行細致的研究，在此基礎上根據函數逼近理論提出了平板顯示器時間片掃描的混合擬合逼近驅動方法，該方法採用多組相異子集_ i ~ *完成高精度的符合視覺感覺的灰度級控制。
  6. The obtained results in the paper are as follows : ( 1 ) the expansion of fourier series of orthogonal trigonometric polynomial for conditional mathematical expectation and function of random variable ; ( 2 ) the best approximation of trigonometric polynomial about another random variable for function of a random variable ; ( 3 ) the best approximation order of trigonometric polynomial for function of random variable

    摘要獲得了如下結果： （ 1 ）條件數學期望及隨機變量函數的三角多項式級數表達； （ 2 ）一個隨機變量關于另一個隨機變量的三角多項式的最佳逼近； （ 3 ）隨機變量函數被隨機變量三角多項式最佳逼近的階。
  7. Based on this point, penman combines the good approximation capacity of fuzzy system and the merits of internal model control, such as simple design, good regulation capacity, high robustness and elimination of the unknown disturbance etc. to construct the fuzzy internal model control system based on ga, which is characterized by high robustness and quick response speed, furthermore, it can bring good control performance when the controlled objects vary in a big range. at last, it is triumphantly used in simulation of the 1st superheated steam temperature reduction control system

    正是基於這種思想，筆者結合內模控制設計簡單、調節性能好、魯棒性強並能消除不可測干擾的影響的特點和模糊系統的良好的函數逼近能力提出基於遺傳演算法的模糊內模控制，其特點是系統的魯棒性強、快速性好，且當被控對象在較大范圍內變化時，控制系統仍然具有良好的調節特性，並將此控制方案成功地應用於500mw機組一級減溫控制系統的模擬中。
  8. By the ranking model by similarity to ideal point based on m and n, the criterion of cultivated land can ’ t be used as plant cash crops and the criterion of cultivated land should priority used as plant cash crops and the criterion of cultivated land can ’ t be used as construction land and the criterion of cultivated land should priority used as construction land were confirmed. finally, the evaluation of cultivated land grade, realistic class, and potential class were all demonstrated and the result of cultivated land grade, realistic class, and potential class were all verified in a case study in changsha county changsha city, hunan province. by calculated cultivated land coefficient m and n and confirmed c _ m and c _ n of the ranking model by similarity to ideal point, the result 0. 5032 < c _ m 0. 9931 was confirmed as the criterion of cultivated land should priority used as plant

    最後以湖南省長沙縣作為典型研究區域，實證了耕地等、現實級和潛在級的評價，並分析了其評價結果的可靠性;通過計算耕地經糧系數和建糧系數，及逼近於「理想點」的排序模型中的c _ m和c _ n確定了長沙縣0 . 5032 < c _ m 0 . 9931為耕地應優先用作菜地等經濟作物用途和0 . 0126 c _ m < 0 . 5037為耕地不應用作菜地等經濟作物用途的判別標準;確定了長沙縣0 . 5035 < c _ n 0 . 9937為耕地應優先用作建設用地用途和0 . 0139 c _ n < 0 . 5035為耕地不應用作建設用地用途的判別標準;最後闡明了c _ m 、 c _ n在種植業結構調整、耕地保護和土地管理中的應用價值。
  9. After analyzing and summing up the wavelet theory, the conclusion was educed that wavelet and quotient space theory was accordant in essence according to the quotient space approach theory

    摘要對小波變換本質進行分析，得出小波是將序列收斂的商空間逼近改造成按級數收斂的商空間逼近的結論。
  10. Here the theoretical model of vav system is set up for the first time. besides, the transfer function matrix of the 5 inputs and the 5 outputs is established by combining the theoretical analysis with the data analysis of experiment. then the non - linear mathematical model of the five loops is delt with in two method : in the first method, taylor progression is applied near the working point of the system in order to make the volume of change between the output and the input become similar to a linear relationship. in the second mothed, the non - linear mathematical model realize linear by means of being devided into sections. the study shows that both the motheds are effective in dealing with the non - linear issue in vav system

    本文首次建立了變風量空調系統的機理模型，並通過採用機理分析和實驗數據分析相結合的方法，建立了所研究的五輸入、五輸出的變風量空調系統的傳遞函數矩陣，並對這五個控制迴路的被控對象的非線性數學模型，採用兩種方法加以處理：第一種方法是在系統的工作點附近進行泰勒級數展開，使輸出的變化量與輸入的變化量之間呈現近似的線性關系；第二種方法是將非線性的數學模型進行分段線性化，即用分段線性化來逼近非線性化的模型。
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