波及帶 的英文怎麼說

中文拼音 [bōjídài]
波及帶 英文
swept zone
  • 波 : Ⅰ名詞1 （波浪） wave 2 [物理學] （振動傳播的過程） wave 3 （意外變化） an unexpected turn of even...
  • 及 : Ⅰ動詞1 （達到） reach; come up to 2 （夠得上; 比得上） can compare with; be comparable; be up to ...
  • 波及 : spread to; involve; affect
  1. Zonal wavelets on the heisenberg group and the orthogonal decomposition for the function space

    群上的帶狀小波及函數空間的正交分解
  2. In this paper, the drive theory of the large ratio friction transmission is studied ; a new type elliptical cam wave generator is designed ; the large ratio friction transmission prototype is designed and manufactured ; based on the ansys finite element method software, structure of the elliptical cam is analyzed ; precision index of the manufactured large ratio friction transmission prototype, such as transmission accuracy, least step, stability of the least step, load capacity is measured by the absolute rotary encoder. by analyzing the measurement data and research content, it is think that the new elliptical cam wave generator could overcome a good many problems brought by processing errors, facilitate size precision adjustments, input moment can be achieved in the form of a pure force couple importing ; through this study, " the large ratio friction transmission prototype " could apply in practical engineering basically

    本文研究了大速比摩擦傳動的傳動理論;設計了新型橢圓凸輪波發生器，設計製作了大速比摩擦傳動樣機;用軟體ansys對所設計的橢圓凸輪結構進行了有限元分析;用19位絕對式編碼器測試了大速比摩擦傳動機構的傳動精度、最小步距、最小步距的穩定性以及帶負載能力等各項精度指標;對測量數據和研究內容進行了歸納和整理，認為新型橢圓凸輪波發生器克服了加工誤差帶來的諸多問題，新型橢圓凸輪波發生器可以進行尺寸精度調整，能夠達到輸入力矩以純力偶的形式輸入;通過本項研究，基本可以使「大速比摩擦傳動機構」在工程中得以應用。
  3. In light of the limitation of fast fourier transform ( fft ) for the method of traditional spectrum analysis to analyze the unsteady signal, wavelet and wavelet analysis are made for the typical unsteady process signal of starting up and shut down with the good characteristic of simultaneous localization in both the time and the frequency domains based on the field test on the vibration of two - row placed units in lijiaxia hydropower station, in which the signal is decomposed into different frequency band, and then the weak signal is caught and the dominant frequency is picked up for the analysis of the vibration source

    摘要基於李家峽水電站雙排機組振動的現場試驗研究，並且針對傳統頻譜分析方法傅立葉變換（ fft ）對于非平穩信號已力不從心這一缺陷，利用小波分析方法在時域和頻域上同時具有良好的局部化性質，通過對開停機這一典型非平穩過程信號進行小波及小波包分析，將其分解到不同頻帶內，獲取微弱信息和提取優勢頻率，並對其作振源分析，得出開停機初始時刻因水流不穩均出現強烈的振動現象，且低頻段信號能量最大，開停機過程水流脈動壓力和尾水渦帶擺動是引起定子基礎振動的主要原因。
  4. Frequency estimation technology and bandpass filtering, which are named as wideband digital downconversion technology, are the key technologies to realize data rate conversion system

    測頻技術以及帶通濾波，即寬帶數字下變頻技術，是實現數據率轉換系統的關鍵技術。
  5. By theory and practice simulation, the several types of constant envelope modulation techniques are analyzed and compared, including theirs modulation principle, phase path, the modulated wave envelope, power spectrums, error bit rate and the influence of its power spectrums of the band - limited and non - linear, etc. especially we have researched the ijf - oqpsk modulation technique, and the performance of its inter - symbol interference and time jitter free, and its strongly resisting of spectral spreading

    結合理論和實驗模擬結果，分析討論了衛星通信中的各種恆包絡調制技術，對它們的調制原理，相位路徑，已調波包絡，功率譜密度，誤碼性能，以及帶限非線性通道對其功率譜的影響等方面都作了研究和比較。特別研究了ijf ? oqpsk在消除碼間干擾和定時抖動方面的性能及其優良的旁瓣特性和抑制頻譜擴展特性。
  6. Because of inner - layer, interlayer and areal heterogeneity of reservoir, after a long period of water flooding, injected water circulates in high permeability channel, sweep volume cannot be enlarged, and injected water volume of per ton increases a lot

    摘要由於儲層層內、層間及平面不均衡性，經過長期注水開發，導致注入水沿高滲透條帶循環，很難進一步擴大波及體積，使得噸油注水量大幅度增加。
  7. Furthermore, it is indicated by the analysis that high - pass, band - pass, wavelet filtering and v - filtering are superior to the former image processing

    同時指出相比于以往的圖像處理方法，高通濾波處理、再現圖像的帶通與v型濾波及小波濾波具有更大的優勢。
  8. On the following, on the basis of formulas given above, three kinds of effects due to ionosphere are presented : image shift due to group delay which was caused by the difference between the group velocity and the velocity of light in the ionosphere ; image distortion due to ionospheric dispersion which can create second phase error of lfm signals ; the last, the phase perturbation caused by the irregularities of the ionosphere can reduce the coherent length and affect azimuthal resolution

    文中主要研究了電離層的三種影響：信號經過電離層傳播的群延遲引起的成像偏移；電離層的色散效應給線性調頻信號帶來二次相位誤差，導致圖像退化、失真；以及電離層的閃爍、湍流等不規則性引起的信號相位起伏。在此基礎上，比較分析了不同波段、帶寬條件下電離層的影響。
  9. Dr benby chan, deputy chairman ceo, asia aluminum explained : " although we adopt a cost plus approach in pricing our products which protects our group from exposure to risks associated with aluminum price fluctuations, we had taken the strategy to absorb part of the exceptional increase in costs of raw material and fuel during the first half in order to strengthen client relationship and further penetration for defined market segment.

    亞洲鋁業副主席兼首席執行長陳耀全博士解釋：盡管集團的產品向按鋁價加上加工費計算，保障集團免受鋁價波動帶之風險，但為了鞏固亞洲鋁業與客戶的合作關系，並加強在個別市場上的優勢，集團在上半年度在策略上特為客戶承擔部分因原料及燃料價格飆升而增加的成本。
  10. The position and conductivity of internal metal block have little influence on the coupling of microwave into the slot of the cavity. 4

    內置金屬塊的位置變化及內置金屬塊電導率變化對微波與帶縫腔體耦合的影響很小。
  11. This thesis introduces a motion compensated 3d wavelet scalable video coding system. and three key techniques of the coding system have been thoroughly researched, namely mc temporal filtering, 3d wavelet transform structure and 3d wavelet subband coding. firstly, traditional wavelet transform theory and wavelet lifting scheme are illustrated

    本文在對運動補償三維小波可擴展視頻編碼框架進行分析的基礎上，對該框架涉及的三個關鍵技術，即運動補償時域濾波、三維小波變換結構以及三維小波子帶編碼進行了深入研究。
  12. These include the apollo moon rocks, which are still in very heavy demand, but now also include samples from the genesis mission and now stardust

    包括阿波羅帶回的巖石? ?它依然是供不應求，以及如今的「起源」號樣品和「星塵」樣品。
  13. Secondly, the modification function and resonance produced by running power capacitor increased the harmonic at the same time, which worsen the operation environment of itself. it is very important to analyze the reason of harmonic and conduct the valid measure to restrain its affect and guarantee the safely operation of power network. the author has present the point in this paper, based on the operation characteristic of modern power system, the author described the production and development of network harmonic with the consideration on the same kind of problem

    本文以現代電力網路的運行特點為基礎，結合近年來對所涉及的同類問題的思考，對系統諧波的產生、發展的一般規律進行較為全面的理論闡述；以大量事故案例分析諧波所帶來的危害和影響；通過實地測試和對所得數據的分析研究，推導出一種應用matlab的fft的諧波分析方法，給出了該方法的程序流程框圖及結果界面顯示；在此基礎上進一步探討了利用現代通信網路建立電網諧波網路管理分析系統的總體構想和功能。
  14. In this thesis, based on this kind of application, we made theoretical analysis and engineering practice on high - precision lfmcw and its signal processing millimeter wave broadband lfmcw radar has quite high theoretical range - precision and distance resolution, however, for the real radar system, the nonideal parameter of its transmitting signal, such as power fluctuation and the nonlinearity in frequency sweep, will result in the decreasing of the practical rang - precision and the distance resolution of radar

    本文基於這一應用對高精度lfmcw測距雷達及其信號處理進行了理論分析和工程實踐。毫米波寬帶lfmcw雷達具有很高的理論測距精度和距離分辨力，但對于實際的雷達系統，其發射信號的非理想參數-掃頻功率起伏和掃頻非線性，將使得雷達的實際測距精度和距離分辨力下降。
  15. The faculty of engineering of cuhk is well - established in research of microwaves and optical waves and now takes the lead to collaborate the research strengths and facilities of the university of electronic science and technology of china and the electronic and information science research institute, shenzhen. research will be carried out mainly in hong kong and chengdu, with system integration and potential product development conducted in shenzhen

    香港中文大學工程學院在微波及光波已有豐富的研究經驗及先進的設備，現率先帶動並結合中國電子科技大學在高頻電磁波的頂尖研究，和深圳電子信息科學研究院提供的太赫茲實驗室及設備，三院校將互派研究人員在香港及成都進行基礎技術研究，並在深圳進行系統整合及研發科技產品。
  16. Secretary, jack straw, speaking at a " special asean leaders " meeting in jakarta, indonesia on 6 january, said, on behalf of the british government and

    2004年12月26日發生的海嘯給印度洋地區帶來了巨大的災難，波及到了數以萬計的人。
  17. With the inherent relation between spotlight mode sar and stripmap mode sar, a method that stripmap sar imaging is performed by multiple - subpatch processing algorithm based on spotlight mode sar is also proposed in chapter 2. in the method, we study how to choose scene size to avoid significant motion through resolution cells and develop the formula of filter bandwidth determined by scene size

    論文第二章還詳細分析了條帶模式與聚束照射模式之間的區別及聯系，提出了一種基於聚束照射sar成像演算法實現條帶數據處理的方法，對成像區大小的選擇作了分析，推導出成像區長度與濾波器帶寬應當滿足的關系式，並用實測數據進行了驗證。
  18. Its occurrence is related to a sudden burst of electromagnetic waves and a vast amount of charged particles mostly electrons from the sun

    太陽耀斑的出現，與太陽上某處地方急劇地放出電磁波及大量帶電荷粒子主要是電子有關。
  19. Its occurrence is related to a sudden burst of electromagnetic waves and a vast amount of charged particles ( mostly electrons ) from the sun

    太陽耀斑的出現，與太陽上某處地方急劇地放出電磁波及大量帶電荷粒子（主要是電子）有關。
  20. In view of the error diffusion in ccc - cdma, the multipath diversity algorithm is put forwards. the simulations show that the multipath diversity gain attains as much as l0db

    指出了基於完全互補碼擴頻的多載波寬帶cdma系統中存在的一些問題，以及今後的努力方向。
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