波逆 的英文怎麼說

中文拼音 [bōnì]
波逆 英文
wave celerity
  • 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...
  • 逆 : Ⅰ形容詞1 （方向相反） contrary; counter 2 [數學] inverse; converse Ⅱ動詞1 （抵觸; 不順從） go aga...
  1. Firstly, chromatism analysis and wavelet transform are used for color image compression coding. in this method, one of the three color components of a color image ( for example the g component of a rgb color image ) is coded using wavelet transform, and the chromatism between g and other two color components rg = r - g, bg = b - g is coded respectively using chromatism analysis. during decoding, g ~ is first reconstructed using wavelet inverse transform and inverse quantisation, and rg, bg are reconstructed using chromatism analysis inverse transform ; then r, b are calculated by r = g + rg and b = g + bg respectively

    其一是應用色差分析和小波變換對彩色圖象進行壓縮編碼，該方法是對彩色圖象的三個色彩分量之一，如rgb圖象的g進行小波變換編碼，而對g與另兩個色彩分量的差值（即rg = r - g和bg = b - g ）進行色差分析編碼，解碼則是通過反量化和小波逆變換得到g ^ ，通過色差分析的逆變換得到兩個重構的色差rg ^和bg ^ ，再算出r ^ = g ^ + rg ^ 、 b ^ = g ^ + bg ^ ，最後由r ^ 、 g ^ 、 b ^重構圖象。
  2. In addition, we analyse the dead time effects of pwm control on the output waveform

    另外還分析了逆變橋上下管驅動信號上的死區對輸出電壓波形的影響。
  3. Because dead time is compensated at the same time, the output waveform is improved, and output torque is strengthened in low frequency

    進行了死區補償，使逆變器在低頻輸出時波形明顯改善，提高了系統在低頻時的轉矩輸出。
  4. Aapproximation of fourier inverse integral using fourier transform approximation for amplitude of harmonics in a finite fourier series summation

    富氏級數中之諧波成份以富氏轉換近似並以有限級數和近似富氏逆轉換。
  5. The design of active power filter inverter circuit

    有源濾波裝置中逆變電路的設計
  6. Underground rapper or overground rebel ? creative artist or conspiracy theorist ? multi - talented hip - hop producer or loud mouthed mc ? hard working professional or channel surfing slacker

    地下說唱，還是主流叛逆？獨創藝術大師，還是個陰謀理論家？多才的嘻哈製作人，還是大聲喧嘩的mc ？他是一位勤奮的專業人士，還是在電波頻道間遊走的懶蟲？
  7. Starting from compressed file, the video data passed huffman decoder, run length decoder, inverse adaptive quantilizer and inverse transform of wavelet

    從壓縮文件輸入開始，經過了霍夫曼解碼、遊程解碼、自適應量化的逆變換、小波逆變換。
  8. A wavelet method for the simulation of a stochastic wind field

    利用小波逆變換模擬隨機風場的脈動風
  9. The relating to methods based on the research on international and domestic electromagnetic wave ( elastic wave, acoustic wave ) for the identification of flaws are all - round viewed

    本文對國際和國內基於電磁波（聲波，彈性波）逆散射理論研究缺陷識別的有關方法給予了全面的評述。
  10. Phase - modulated 3 step level inverters and its minimization of thd

    相位調制的三級電平階梯波逆變器及其總諧波失真度的最小化
  11. Under wide - aperture, the anisotropy of scattering centers become evidence, in this paper, we propose a new algorithm based on sub - aperture and filtered back - projection algorithm to estimate the anisotropy of scattering centers in wide - aperture imaging

    然後針對散射中心方向特性提取問題，結合子孔徑思想和濾波逆投影演算法提齣子孔徑濾波逆投影演算法，模擬結果驗證了演算法的有效性。
  12. The concept, advantages and history of bistatic isar are introduced first in this paper, then 2 - d turntable imaging of monostatic isar the special example of bistatic isar is studied. on the basis of monostatic isar four imaging algorithms are analyzed, including fft algorithm, filtered backprojection algorithm, spectrum extrapolation algorithm and esprit algorithm, and compared in the small and big angel of imaging. on the basis of monostatic imaging the 2 - d turntable imaging principle of bistatic isar is studied,

    本文首先闡述了雙站逆合成孔徑雷達的概念、優點和發展歷程，然後研究了雙站逆合成孔徑雷達的特例? ?單站逆合成孔徑雷達對轉臺目標的二維成像演算法，並在此基礎上分析了四種主要的轉臺成像演算法， fft演算法、濾波逆投影演算法、譜外推演算法和esprit演算法，並對以上各種演算法分別在小角度和大角度下的成像性能進行了比較。
  13. This method gets images of different resolution by inverse wavelet transformation on the client, resolves the problem of 1 / 3 increasing data, which is brought by traditional building method, because in traditional building method the relativity between layers of the pyramid s not used

    該方法在客戶端利用小波逆變換動態合成各種解析度級別的影像，與傳統方法相比解決了沒有利用金字塔各個層次數據之問的相關性帶來的約1 / 3數據增量問題，而且在網路應用中可以形成一種解析度遞增的流式數據傳輸模式，非常適合遙感數據的網路發布。
  14. This paper put forward the realization method of a kind of multi - function general use inverter system which added other functions based on the independent sine wave inverter, it not only can be used as independent inverter power supply but can be used as an in - support mode ups which realize synchronous with the phase of power grid voltage and realize to switch with power grid mutually, it also can realize three phase ac output by the combination of three synchronous inverters, experiment proved it in this way has a stronger ability of resisting three phase unbalance load

    本文提出了一種基於獨立正弦波逆變器的功能之上復合其他功能而成的多功能通用逆變電源系統的實現方法，此系統不僅可以作為獨立逆變電源使用，還可以與電網電壓的相位同步，作為后備式正弦波ups使用，在逆變電源和電網的相互切換時能做到對負載無影響，同時還可以由三臺逆變器進行組合自同步實現三相對稱交流輸出，實驗證明這種方式具有較強的抗三相不平衡負載的能力。
  15. In this papers, the main voltage reflection and common - mode voltage are analyzed and emulated. we designs passive filter to vanish those influence and this filter is emulated

    同時為了消除它們的影響，進行了改進型的正弦波逆變器輸出濾波器的設計，並對此濾波器進行了模擬。
  16. Based on state - space method to study the inverter fed permanent magnet synchronous machine, the sorts of the switch fault are given and the causes for the faults are analyzed. it investigates the currents and torque of the drive system fed by six - step inverter and pwm inverter under the different fault condition, and the valuable results are got 2

    在利用狀態空間法深入分析永磁同步電動機變頻調速系統穩態特性的基礎上，分析了逆變器開關元件發生故障的類型及其原因，模擬分析了六階梯波逆變器、 pwm逆變器各種故障狀態下的系統動態特性，得出了一些有價值的結論。
  17. Finally, the denoised image is obtained by inverse transformation of the substitution wavelet coefficients

    最後對處理后的圖像小波系數進行小波逆變換，得到去噪圖像。
  18. During decoding, the component is first reconstructed using inverse quantization and wavelet inverse transform. then according to this component and the reconstructed correlation coefficients, the other two components are calculated out. finally the color image is reconstructed by the three color components

    解碼則是通過反量化和小波逆變換得到一個重構的色彩分量，再由這個色彩分量和重構的相關系數解出另兩個色彩分量，最後由這三個色彩分量恢復圖象。
  19. Third, to compress the text layer and image layer respectively. the whole process of compression includes sub - sample, wavelet transform, ezw and arithmetic encoding. and the whole process of decompression includes arithmetic decoding, ezw decoding, wavelet reverse transform and image smoothing

    第三，分別對文本層和插圖層進行壓縮，壓縮採用的方法依次為亞抽樣、小波變換、零樹編碼和算術熵編碼；解壓縮過程為算術熵解碼、零樹解碼、小波逆變換和圖像平滑。
  20. This paper proposes a two - armed push - pull inverter, including its topologies, power distributions in every switching devices and modulation schemes. the major parameters such as thd and df of this vsi are analyzed. comparison study shows that the quality of two - armed push - pull vsi is better than those of square - wave vsi. and the switching loss is lower than that of pwm scheme at same time, especially used in wide frequency range. detailed calculating formulae and experimental results are presented

    該文介紹了一種雙臂推挽式逆變器，包括其電路拓撲、每個開關器件的功率分佈和調制策略.分析了這種電壓源逆變器的主要參數，如總諧波失真度（ thd ）和失真指數（ df ） .比較研究表明，這種逆變器的質量明顯優于方波逆變器，同時開關損耗明顯低於pwm調制方式，特別適用於寬頻范圍.介紹了計算公式和實驗結果
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