相移特性 的英文怎麼說

中文拼音 [xiāngxìng]
相移特性 英文
phase shift characteristic
  • : 相Ⅰ名詞1 (相貌; 外貌) looks; appearance 2 (坐、立等的姿態) bearing; posture 3 [物理學] (相位...
  • : Ⅰ動詞1. (移動) move; remove; shift 2. (改變; 變動) change; alter Ⅱ名詞(姓氏) a surname
  • : Ⅰ形容詞(特殊; 超出一般) particular; special; exceptional; unusual Ⅱ副詞1 (特別) especially; v...
  • : Ⅰ名詞1 (性格) nature; character; disposition 2 (性能; 性質) property; quality 3 (性別) sex ...
  • 特性 : characteristic(s); character; performance; features; properties; behaviour; response; character...
  1. And understanding and studying the spectral features and variation rules of geo - targets in the experimental area, raising that it is the basis of geo - targets information collection with imaging spectrometer data to understand spectral features and variation rules of geo - targets, realizing that in a great extent spectral - integrated - form - based classification method can remove the phenomenon of " different spectrum with same objects " resulted from reflection ratio curve translation because of the angle change among sensor, targets and observation direction, and the average and variance images can be introduced to solve the problem of two kinds of geo - target with similar spectral forms and much different values of whole reflection ratio. it is suggested that " red edge " range bands of vegetation, which has close relationship with vegetation cover and biomass, is the main characteristic bands and important basis for careful vegetation classification and quantitative retrieval, and pixel - based derivative spectral analysis is very useful for removing the effects of soil background values and quantitatively retrieving vegetation biomass and cover. the remote sense quantitative retrieval model is developed for main appraisable factors of desertification monitoring assessment with imaging spectrometer data and then the applicability of model is analyzed

    研究結果如下:首先針對荒漠化地區的地物徵,對高光譜數據不同波段的數據質量、波段組合進行了評價,提出了適用於荒漠化監測的基本波段選擇集;初步了解和掌握了研究地區的地物光譜及變異規律,進一步明確了掌握地物光譜徵和變異規律是用成像光譜儀數據提取地物信息的基礎;發現了基於光譜整體形狀的分類方法在很大程度上能夠消除由於傳感器、地物目標觀測方向之間的角度變化引起的反射率曲線整體平的「同物異譜」現象,對于譜形似而整體反射率的值差較大的兩類地物,通過引入均值和方差圖像參與分類得到解決;研究還表明在植被「紅邊」范圍內的波段是進行荒漠化監測的主要徵波段,這些波段與植被生物量和蓋度都有密切的關系,是開展精細植被分類研究和植被定量反演的重要基礎;像元的導數光譜分析可以消除土壤背景的影響,是進行植被生物量和蓋度定量反演的有力工具;建立了荒漠化監測主要評價因子的定量反演模型,並分析了模型的適用
  2. In particular, feature selection removes irrelevant features, increases efficiency of learning tasks, improves learning performance, and enhances comprehensibility of learned results

    徵選擇能夠除不徵,提高學習效率,改善學習能,增強學習結果的可理解
  3. A novel phase - shifted zero - voltage and zero - current switching pwm dc / dc full - bridge converter is presented in this thesis, which is based on the groundwork of summarization of the development of power electronics in recent years and lucubration in theoretical basis of modern high frequency soft switching power convert technique and analysis of operation principle, characteristic of the circuit and inherent drawbacks of the traditional phase - shifted zero - voltage switching pwm dc / dc full - bridge converter

    本文在對近年來電力電子學科的發展高度綜述和對現代高頻軟開關功率變換技術理論基礎深入研究的基礎上,對傳統的控制zvspwmdc dc全橋變換器的工作原理、電路、存在的缺點進行了分析,在此基礎上提出了一種改進型的控制zvzcspwmdc dc全橋變換器。
  4. This character might improve invasion ability of ramet in vacant habitat, and adapted to the character of life history that l. virgaurea and l. sagitta presented under transplantation condition

    這一可以提高分株在空白斑塊中的侵佔能力,這也適應于黃帚橐吾和箭葉橐吾在栽條件下所表現出的生活史徵。
  5. The effect on display characteristic made by thermal deformations of the shadow mask is comprehensively investigated. by using the electron beam distribution automatic measurement system with a micro - deflective coil, a concave spot in luminance distribution can be get. it changes its position when the shadow mask changes its form

    本文系統全面地分析了傳統蔭罩的各類熱變形對顯示屏的影響,利用本文研製的電子束亮度分佈自動測試系統,附加一個微偏轉磁場,使鄰兩電子束打在同一顏色的熒光粉條,並形成一個亮度凹點,當蔭罩變形時,凹點位置作應的位,以此原理跟蹤測量凹點位量,即可得到色純漂動態變化曲線。
  6. This paper, from three aspects of analogue test, theoretic analysis and examples comparison, analyzed the superimposition mechanism and mutual interference mechanism of two mining activities in the slop rock mass under the influences of simultaneous open - pit and underground mining, thus systematically summing up the sliding rule of slope rock mass and the characteristic of movement status in different areas

    本文從模擬試驗、理論分析和實例對比三個方面,分析在地下與露天同期開采影響下,兩種采動影響在邊坡巖體內的互疊加機制和互擾動機理,從而系統地歸納出邊坡巖體的滑規律和不同區域的徵。
  7. In this dissertation, the researches on the application of cdma in fiber - optic communication systems have been reviewed, and several key techniques in the application are proposed with theoretical analysis. in traditional researches and applications of the hfc cdma communication system, the gold sequence was used as the users " address code. in this paper, we analyze the characteristics of the m sequence in detail

    本文突破了以往在hfc系統中使用cdma擴頻技術通信時,通常都採用gold序列來作為地址碼的慣例,分析和提出了在hfc的定環境中,使用同一m序列在某時刻具有的不同序列,來構成一個小區的地址編碼,能夠達到多用戶通信時比使用gold序列進行通信具有更好的
  8. Based on the pull - out tests data between geogrids and expansive soil / sands arranged by the orthogonal table l9 ( 34 ), the following conclusions are reached : 1 ) the displacement - properties of pullout tests depend on the pullout speed. the law of factors " affecting degree, which influences the parameters between geogrids and soils in the pulling - out procedure, is obtained. with the concept of " equivalent pull - out displacement ( x ) " brought forward, the whole process of pull out tests is divided into two process - " main process ( when x 1. 0 ) " and " residual process ( when x 1. 0 ) ", and three stages - static friction resistance stage, slip friction resistance stage, and residual friction resistance stage

    基於正交設計表l9 ( 3 ~ 4 )分別安排了影響因素與土工格柵膨脹土或砂土界面互作用參數的拉拔試驗數據,獲悉: 1 )拉拔試驗位主要取決于影響因素中拉拔速率;通過分析並獲取影響因素對筋土界面互作用參數的影響程度及其在拉拔試驗過程中的變化規律,提出了當量拉拔位( x )的概念,並據此將拉拔試驗全過程劃分成「主過程( x 1 . 0 ) 」和「殘余過程( x 1 . 0 ) 」 ;且將影響因素對拉拔力或摩擦阻力系數的影響程度分成三階段(靜摩擦阻力階段、滑動摩擦阻力階段,殘余摩擦阻力階段) ; 2 )不同(規范)定義的筋土界面摩擦阻力系數數值差較大,但影響因素對摩擦阻力系數影響程度及其變化規律不會因不同(規范)定義而受到影響。
  9. Considering slpmu - 025a produced by japan shinko motor company ltd. as our study project, this thesis presents a study on two - phase hybrid lsm, the study objects and some conclusions presented in the thesis are : ( l ) the 3d model of slpmu - 025a is formed by software maxwell 3d. then, the 3d magnetic field of the motor is analyzed by fem ( fenite element method ) analysis. here, the analysis of the magnetic field is in focus on the region of tooth - layer

    本文以日本神鋼電機株式會社生產的slpmu - 025a為研究樣機,對二混合式直線步進電動機進行了研究,內容包括: ( 1 )用maxwell3d軟體建立了slpmu - 025a的三維模型,通過有限元分析計算了電機的三維磁場,重點分析了電機齒層區域的磁場; ( 2 )應用maxwell3d的后處理計算得到了電機的靜推力? ?位,並與實驗進行了比較; ( 3 )利用matlab中的simulink建立了動態模擬模塊,模擬了電機的部分動態,並用實驗進行了驗證。
  10. Another increasingly important ( actor is to be integrated with analog and digital circuits. for this reason, it is highly advantageous for the microwave components to be fabricated through a commercial cmos process. so we research the microwave transmission lines and apply it into phase shift

    微型硅基微波傳輸線是微波無源、有源器件及微波集成電路的重要構成基礎,本文首先對其工作原理、器件模擬、結構參數設計、制備及散射參數測試進行較深入全面的研究,並進一步將微波傳輸理論應用於mems器,對器的結構參數、相移特性及可靠等進行了分析。
  11. The non - linear hereditory creep equation and the relatedcharacterics analysis for intercated weak layer of slide - plane

    邊坡滑面軟弱夾層時間效應與的試驗研究
  12. Several key factors such as signal fading and multi - path effect are further analyzed and simulated. summarizes smart antenna algorithms for cdma mobile terminal

    在總結應用於cdma動終端的智能天線演算法基礎上,提出一種利用接收信號與期望信號的新型智能天線演算法。
  13. A new way which to measure the characteristic parameter of the phase shifting controller made of fiber with pzt by phase shifting is presented, and its basic principle is introduced in detail

    針對本系統使用的控制器(帶pzt的光纖控制器) ,本文提出了一種利用技術測定光纖pzt控制器相移特性參數的方法,詳細闡述了該方法的原理。
  14. Secondly, we prove the self - relation function and correlation function of pseudo noise code sequence and obtain the shift register generating circuit from it ' s generating function

    然後,通過偽碼的生成多項式,導出偽碼的位寄存器生成電路,並分析了偽碼的自和互
  15. 1 in the research of design of radar waveform, one kind of hybrid radar waveform obtained by combining the chirp waveform with the non - periodic pseudorandom sequences is discussed. through the theoretical analysis and computer simulation, several main characteristics of this kinds of hybrid waveforms are discussed, such as the ambiguity function, ambiguity graph, the spectrum, the weighting methods, the response of the processing filter and the low probability of interception. those are showing the effectiveness of the new hybrid waveforms on the performance of high resolution and low probability of interception

    作者在以下幾個方面的研究工作中取得了進展及創新: 1 、在雷達波形設計中,介紹了一類新的線調頻信號與非周期隨機編碼信號結合的組合波形的組合形式,通過理論分析和大量的計算機模擬研究了這類組合波形的模糊函數(圖) 、頻譜、多普勒頻、加權輸出、低截獲等方面的點,證明了新型的組合波形在高分辨、低截獲等方面的有效
  16. Bearing capacity and displacement are two main problems in the application of geotechnical engineering. based on a series of pull - out tests using three kinds of paper and a sort of window screening as geogrid, twenty - seven in limit and several in working - stress geogrid - reinforced slope model tests designed through orthogonal principle have been conducted to have obtained the relationship between the bearing capacity and four factors ( i. e. reinforcement, angle of reinforced slope, the designed - length of reinforcement and the distance between layers of reinforcement ). the law of slope lateral ( horizontal ) displacement versus to the height of slope vary with external - load was derived from the model test data, and the main factor affecting the lateral and vertical displacement of geogrid - reinforced slope was obtained through analysis

    承載力(強度)和變形是巖土工程應用領域的兩大主要問題,本文以紙和窗紗布模擬加筋土邊坡的土工格柵,在一系列拉拔試驗的基礎上,以正交設計理論分別安排27個極限應力狀態和若干個工作應力狀態加筋土邊坡模型試驗,並以模型試驗獲得的數據為依據,採用誤差、極差及回歸分析方法,探討了加筋土邊坡承載力與筋類、筋長、層間距、坡角4因素的關關系,獲得了在外荷載作用下加筋土邊坡的側向位隨坡高的變化規律(並進行了定解釋)和坡頂的豎向位,並分析其主要控制因素。
  17. ( 2 ) taking the nonlinear energy transfer property of the photorefractive two - beam coupling in the sbn : 61 crystal doped with 1000ppm cr and the knsbn crystal doped with 0. 07wt % ce, edge - enhancement preprocessing can be achieved, which will results in the larger normalized intensity and narrower width of the correlation peaks. and the discrimination of the jtc is greatly improved

    ( 2 )利用sbn : 61 : cr晶體( 1000ppm )和knsbn : ce晶體( 0 . 07wt )的二波耦合能量非線,對聯合變換關器的輸入圖像進行邊緣增強預處理,提高了關峰的歸一化強度,減小了關峰的半寬度,從而大大提高了關器的識別能力。
  18. The correlation properties of pn sequence are widely used for synchronization in conventional cdma systems, and corresponding synchronization algorithms are very mature by now, so a new synchronization technique based on the correlating properties of pn sequence is discussed in this paper, in which synchronization may be performed after ofdm deframe and before fft conversion in order to make full use of transmitted cdma signal structure

    本論文針對基於pn序列的深入地討論了mc - cdma動通信系統的同步捕獲技術,對同步捕獲的原理和方法作了較為深入的研究,詳細分析其捕獲方案,推導出它的主要能指標並進行分析。
  19. 3 ' - utr of h pf4 c dna was deleted and tag was mutated to taataa. 2 after sds - page and densitometric scan analysis, the result show that expression level is 25 - 30 % of total bacterial proteins

    山西醫科大學2002屆碩士學位論文一2dhsa pbv220 rhpf4經溫控誘導表達后, sds page及凝膠密度掃描分析,表達產物占總國體蛋白的25 30 ,凝膠遷與hpf4標準品同。
  20. Compared with the present model, the new model does n ' t suppose the distribution of the thrust behind the pile, but computes the distribution using the relative deformation of the pile and slope when taking the displacement of the sliding mass as a kind of form that the system can produce according to the displacement character of the sliding mass

    與現有抗滑樁與坡體互作用的計算模型比,該模型不是對樁后滑坡推力分佈做出假定,而是根據滑體的位,將滑體位視為系統允許的某種形式,通過樁與其後滑體的對變形來計算滑坡推力的分佈。
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