正交變數 的英文怎麼說

中文拼音 [zhēngjiāobiànshǔ]
正交變數 英文
orthogonal variables
  • 正 : 正名詞（正月） the first month of the lunar year; the first moon
  • 交 : Ⅰ動詞1 （把事物轉移給有關方面） hand over; give up; deliver 2 （到某一時辰或季節） reach （a cert...
  • 數 : 數副詞（屢次） frequently; repeatedly
  1. In view of this situation and the characteristic of qualitative variable as well as quantitative variable of the geological factors affecting coal seam affusion, put forward the application of numerical theory on the basis of optimization study of orthogonal design to confirm the optimal combination of the technical parameters of coal seam affusion when geological factors is in precarious state and then proceed optimization study with instances

    針對這種情況及影響煤層注水的地質因素既有定性變量，又有定量變量的特徵，本文在利用正交設計優化研究的基礎上，提出利用數量化理論確定地質因素為不穩定狀態下的煤層注水工藝參數的最優組合，並結合實例進行了優化研究。
  2. The structure of air - blast pipe was improved on. an orienting object was installed based on theoretical analysis, that increase the spraying span. it has been found that both spraying span and droplets uniformity improved, by installing the orienting object. according to the results of a great number of experiments, orderliness of droplets diameter along the spraying span was researched, and rational spraying span of air - assisted sprayer was suggested

    通過試驗檢驗噴霧機樣機的噴霧性能，並提出對各項參數的優化設計方案。通過正交試驗和對比試驗對霧滴取樣，證明導流器的安裝不僅增加了噴幅，而且還提高了霧滴均勻性系數。根據大量試驗的結果分析，找出了霧滴直徑在噴幅方向上所呈現的變化規律，並提出了合理的噴幅范圍。
  3. In this paper, the effects of fly ash, cement, lime, fine sands, foam agent, w / c ratio and additional agent on foamed concrete were studied by experiments, the best combination ratio of fly ash foamed concrete whose density varies from 551kg / m3 to 650kg / m3 was obtained through orthogonal test design, the foam agent quantity and the fly ash quantity effect the fly ash foamed concrete greatly, so the author selected them as independents to establish duality linear regression equations, the equations were quite ideal through the test of model summary r. moreover, the author also did some experiments about the water resistance of magnesium oxychloride cement fly ash foamed concrete, the outcome showed that phosphoric acid has good effect on water resistance, and its appropriate quantity was found

    本文通過試驗研究了粉煤灰、水泥、石灰、細砂、發泡液、水灰比及外加劑對粉煤灰發泡混凝土性能的影響，採用正交設計試驗方法得出了600級粉煤灰發泡混凝土的最佳配合比，同時發現發泡液和粉煤灰摻量對發泡混凝土的影響最為顯著，因此，以二者為自變量建立了二元線性回歸方程，通過全相關系數的檢驗發現方程較為理想。此外，還對氯氧鎂水泥基粉煤灰發泡混凝土的耐水性進行了相關實驗，發現磷酸有較好的耐水性效果，同時找到了其合適的摻量范圍。
  4. Regarding the serious smoke ejection of 75 diesel engine series, this paper points out that this problem could be solved by modifying certain parameters and employing gyrating regression design. the actual experiment on 375 diesel engine series shows that, after innovation, the maximum of smoke ejection of gyrating moment falls by 24. 2 percent, and then the rating is demarcated, the smoke ejection falls by 53. 8 percent

    本文針對75系列柴油機排煙嚴重的問題，通過改變噴油嘴及相關調整參數，利用多因素正交旋轉回歸設計安排試驗，取得了較好效果.在375型柴油機上的實驗結果表明：進行優化匹配調整后，最大扭矩點煙度下降24 . 2 ，標定工況時煙度下降53 . 8
  5. The addition formula of spherical harmonics function of degree n and order 1 is derived using the relations between coordinate varieties after coordinate rotating and the property of the associated legendre polynomial. the relations among the magnetic vector potential, the modified magnetic vector potential and the second - order vector potential ( sovp ) are shown going forward one by one. it is explained that the solutions of electromagnetic fields in different coordinate systems can be transformed and an example having analytical solution is given

    利用坐標旋轉后球坐標變量間的關系和連帶勒讓德多項式的性質推導得到了n次1階球諧函數的加法公式；以遞進的方式說明磁矢量位、修正磁矢量位與二階矢量位的關系，寫出了引入二階矢量位的過程；以時諧場矢量邊值問題為例，闡明了不同坐標系下電磁場解的相互轉化原理，給出了一個解析解的轉化例子；在球坐標下，引入了較球矢量波函數更普遍的兩類矢量函數，給出了其在球面上的正交關系。
  6. In this thesis, firstly, we put forward a new algorithm of the synchronization of carrier reference phase, that is to use the curve synthesizing with the general digital carrier phase looper to have an estimation on carrier frequency within 10 ms so as to meet the need of meteor burst communication. we have done some simulations to get the performance of carrier frequency estimation using two modulation modes ( 16qam and 4 - qpsk ), and had some test on the carrier phase looper in conditions when using different baud rate transmission and when the baud tuning have windage

    我們對兩種正交調制方式（ 16qam和4 - qpsk ）進行了模擬工作並給出了模擬結果，同時討論了碼元同步定時誤差對鎖相環路工作的影響並根據流星通信中使用變速率傳輸時鎖相環路的載波同步性能進行了測試；然後在基於軟體無線電思想的數字處理平臺（該數字處理平臺實現了中頻數字化）上用dsp軟體完成了載波的相位跟蹤。
  7. According to the geometry of slope measurements for the subjective wavefront optometer, a wavefont reconstruction model using zernike polynomial with normalization factor is put forward. based on householder transformation and gram - schmidt orthogonalization method, two methods for working out unknown zernike coefficients are bring forward. the error propagation parameter for the wavefront reconstruction model is deduced

    深入研究了帶標準化因子的zernike多項式的性質;針對主觀式像差儀波前斜率采樣方案，提出了採用帶標準化因子的zernike多項式對眼測試波前進行重建的數學模型;提出了兩種求解方法，即基於householder變換求解法和基於gram - schmidt正交化求解法，用於確定重建模型中的未知模式系數;推導出了該波前重建模型對斜率測量誤差的傳遞系數。
  8. The contributions of these factors and their reciprocal actions affecting deformation and strength are ascertained by the way of orthogonal test interpretation. the effective ways of reducing expansiveness, collapsibility and that of enhancing strength of expansive soil are proposed

    利用正交試驗的數據分析法確定以上因素及其交互作用對加水變形和強度的貢獻大小，提出減少膨脹土膨脹性、濕陷性以及提高強度的方法。
  9. The spectral analysis of non - orthogonal functions cannot be obtained by orthogonal integration method. only the spectral analysis of some particular non - orthogonal functions can be realized by integral transformation. thus, the concept of reflection matrix is proposed and the mirror symmetry of spectral analysis for non - orthogonal function is revealed. any element functions whose reflection matrix can be obtained possesses its inverse element function. the spectral vector corresponding to an element function possesses its inverse spectral vector corresponding to the inverse element function. by reflection matrix the mapping relation of element function pair and spectral vector pair can be established. spectral analysis of non - orthogonal functions can be obtained with this symmetry by using the integration method as in the case of orthogonal functions, instead of calculating the inverse matrix as usual. so a convenient and practical method for spectral analysis of non - orthogonal functions is offered

    非正交函數不能利用正交積分來實現譜分解.僅有某些特殊的非正交函數可以通過積分變換實現譜分解.本文提出了反射陣的概念，揭示了非正交函數譜分析的鏡像對稱性.任何能夠建立起反射陣的元函數存在著它的逆元函數，並且任何基於該元函數的譜向量同時也存在著基於逆元函數的逆譜向量.元函數對與譜向量對通過反射陣建立映射關系.利用這種對稱性，非正交函數可以象正交函數一樣使用積分方法獲得譜分解結果，而不必使用求解逆陣的方法，從而為非正交函數的譜分解提供了便捷、實用的方法
  10. Abstract : bridge function and generalized bridge function are all three - valued function, and are made by initial sequence according as copied or shifted ways. they include some familiar orthogonal function of non - sine, such as walsh function. this paper briefly introduced some research advance on this subject, emphasized to introduce the copy theory and generalized copy method. the process of making ( generalized ) bridge function, its property and application, were introduced briefly

    文摘:橋函數和廣義橋函數均為三值函數系，都是將初始序列經復制方式和移位方式變換后而形成的.它們包括了一些常見的非正弦正交函數，如沃爾什函數和方波函數等.簡要介紹了近10年來北京航空航天大學通信與電子系統博士點在非正弦正交函數方面研究的一些新進展，重點介紹了復制理論和廣義復制方法，橋函數、廣義橋函數的復制生成方法、性質及其應用等專題
  11. The general forms of the transformed new equation and the coefficients are also given. numerical simulations show that it can be efficiently used in solving the helmholtz equation

    數值模擬表明，適當地選取某些非線性局部正交變換來求解在曲底區域中的helmholtz方程，確實可以改善數值求解的效率。
  12. The theory basis for medium frequency receive includes sample theory, the signal ' s orthodoxy transform theory, multi - rate digital signal processing theory and signal ' s modulation and demodulation theory

    中頻數字接收的理論基礎是信號的奈奎斯特采樣定理或帶通采樣定理，信號的正交變換原理，多采樣率數字信號處理原理以及信號的調制解調理論。
  13. The key technology of the moving load identification is realized with the certain precision by using the generalized ortho - polynomial method, and the dynamic moving load identification model in generalized ortho - polynomial domain is established

    本文在載荷勻速移動的基礎上，將時域識別的方法推廣運用到變速運動的載荷，運用廣義正交變換技術研究了移動載荷識別的新方法，並推導出了在廣義正交域下移動載荷識別的數學模型。
  14. Summer precipitation in northeast china ranging from 1960a to 2000a and ncep reanalysis data is applied to study the temporal and spatial features of summer rainfall and extreme precipitation in northeast china. the results show : 1 summer rainfall in northeast china exhibits upward trend with the cycle variation of 14 years and 2 to 4 years. two abrupt changes occurs in summer rainfall with its happening time on 1964 and 1988 / 89

    利用東北地區99個測站的1960 ? 2000年夏季逐日降水資料，以及ncep再分析資料，採用旋轉經驗正交函數、 morlet小波分析、合成分析等方法分析了東北地區夏季降水的演變特徵和降水異常的環流背景，得出主要結論如下： 1東北地區夏季降水存在著減少趨勢，並且有14年和2 4年的周期存在，降水發生過兩次突變現象，分別發生在1964年和1984 85年之間。
  15. Based on 1960 - 2000 daily temperature data of 99stations in northeast china and ncep reanalysis data, the spring temperature in northeast china is analyzed, and the results indicate : 1 the spring temperature in northeast china presents upward tendency and the cycle periods of 14 years and 4 to 6 years. meanwhile abrupt change is significant between the year of 1984 and 1985

    利用東北地區99個測站的1960 ? 2000年春季逐日平均氣溫資料，以及ncep再分析資料，採用旋轉經驗正交函數、 morlet小波分析、合成分析方法研究了東北地區和各不同區域春季氣溫的時空分佈、年際和年代際變化特徵、春季氣溫異常以及低溫過程的環流特徵，並得出主要結論如下： 1 、東北地區春季氣溫存在著上升趨勢，並且有14年和4 6年的周期存在，東北地區春季氣溫存在突變現象，出現突變的時間在1984 1985年間。
  16. Discrete cosine transform ( dct ) is one of common transform encoding technique in common use of image compression. because such advantages as relatively matured theory, arithmetic and hardware ; ease to move relativity ; fit human vision system ; less calculation ( not include plural calculation ) : ease to realize and so on, dct compression is widely used

    離散餘弦變換（ dct ）是圖像壓縮中經常用到的正交變換編碼技術，由於理論、演算法和硬體相對成熟，去相關性好，適應人眼的視覺特性，計算量不大（沒有復數計算） ，易於實現等優點， dct壓縮編碼的應用非常廣泛。
  17. This paper discusses the hardware system architecture of broadband software radio experiment platform, designs hardware circuit system, studies the basic theory of software radio deeply, establishes the mathematical model. the platform is made up of a / d ( ad6640 12bit 65 msps ), orthogonality transform, digital filtering and dsp, etc. the platform can demodulate pcm - am / fm / pm / ask / fsk / psk / qpsk, pcm - cdma - psk, pcm - qpsk signal

    本文論述了寬帶軟體無線電接收實驗平臺硬體系統的體系結構，設計了硬體電路系統，深入研究了軟體無線電的基本理論，建立了接收實驗平臺的數學模型。該平臺由高速a d變換器（ ad664012位65msps ） 、正交變換、數字濾波器、 dsp等部分構成。實現了pcm - am fm pm ask fsk psk qpsk ， pcm - cdma - psk qpsk調制方式的解調功能。
  18. Based on the empirical orthogonal function ( eof ), the characteristics of large scale variations of precipitation anomaly during rainy season ( from jun to aug ) in south - west china for the period 1961 1995 is analyzed, and the teleconnection distribution charac - teristics between sea surface temperature ( sst ) over india ocean and precipitation during rainy season in south - west china were studied by using the method of cca

    用自然正交函數展開方法對1961 1995年西南汛期（ 6 8月）降水大尺度變化特徵進行分析，並在此基礎上用典型相關分析方法研究了1 8月印度洋海溫距平場與西南汛期降水場的遙相關分佈特徵。
  19. At last, combining the related knowledge of wavelet theory and hidden markov models, we introduce wavelet transformation for nonparametric estimation of hmm ' s and discuss how to choose resolving scale of haar - wavelet orthogonal series " estimation

    最後，結合小波理論和隱馬爾科夫模型的相關知識，將小波變換應用到隱馬爾科夫模型非參數估計問題中來，並探討了其中haar小波正交級數估計量分解尺度的選取。
  20. Firstly, this paper introduces the basic theory and the key technology of digital intermediate frequency system, secondly the method of the sampling rate conversion, multirate signal, and which is the important, essential theory in digital intermediate frequency system, is studied carefully. then it analyses the components of the flow chat. finally we simulated the designed system on spw and the properties of the system is make out

    文章首先闡述了數字中頻系統的基本思想、關鍵技術和發展概況，然後研究了數字中頻系統涉及的數字信號處理理論，主要內容包括欠采樣技術、多速率信號處理、正交變換理論與高效數字濾波技術，然後詳細分析了數字中頻系統的設計，並在spw模擬平臺上加以實現，最後根據模擬結果分析了數字中頻系統的性能。
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