諧波級次 的英文怎麼說

中文拼音 [xiébōjícì]
諧波級次 英文
harmonic order
  • 諧 : Ⅰ形容詞1 （和諧） in harmony; in accord; in tune 2 （詼諧） humorous Ⅱ動詞（商量好; 辦妥） come t...
  • 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...
  • 級 : Ⅰ名詞1 （等級） level; rank; grade 2 （年級） any of the yearly divisions of a school course; gra...
  • 次 : Ⅰ名詞1 （次序; 等第） order; sequence 2 [書面語] （出外遠行時停留的處所） stopping place on a jou...
  1. One is to use fourier transformation to convert the source signal from time domain to frequency domain and to discard high frequency harmonious components upwards of 19 ( gb / t14953 - 93 d5. 3 demanding ), then to have static huffman coding to the quantized char array which is composed of reserved direct current component and basic wave and each high frequency " s amplitudes and angles. the other is to use discrete wavelet transformation to convert the source signal from time domain to frequency domain and to set the high frequency coefficients that its absolute value is smaller than the given threshold to zero, then to have dynamic huffman coding to the quantized char array which is composed of multiple, wavelet ' s level, datum length, low frequency coefficients and reserved high frequency coefficients. mass simulinks and analyses under the two circumstances have done to show that data compression ratio is small and the relative error is also small and within the permission of engineering and the compression problem can be solved in theory of measured datum of power system

    第一種情況的壓縮方法為：採用傳統的傅立葉變換把原始信號從時間域變換到頻率域，舍棄20次及其以上的高次諧波成分（保證了gb / t14953 ? 93d5 . 3要求） ，然後對保留的直流分量、基波和各次諧波的幅值和相角數據量化后和量化時分別乘以的倍數系數構成一個數組，以字元形式保存，採用靜態huffman編碼對變換數據進行壓縮；採用離散小波變換把原始信號從時間域變換到頻率域，然後對分解得到的高頻系數進行閾值量化處理，對乘以的倍數系數、小波變換的階數、小波變換后的低頻、各級高頻以及原始數據長度、量化后的低頻系數以及保留的高頻系數大小、位置構成一個數組，以字元形式保存，採用動態huffman編碼對這個文件進行壓縮。
  2. The more poles mode, the unequal pole width mode ; the low - frequency slot harmonic modulation mode and the mode of changing end magnetic conductance are presented, and these designing method can efficiently weaken the end effect and decrease the wave of the thrust

    提出的採用多極電機方式；初級與次級極距不等的方式；齒諧波低頻調制方式和改變電機兩端部磁導的方式等電機的設計原則和方法，都可有效地削弱端部效應，減小推力的波動。
  3. Based on the modularized asi, cascade inverter topology structure and modulation mode is introduced in this paper. comparing with several control strategies such as single closed - loop feedback and dual close - loop instantaneous value feedback, the voltage - current dual closed - loop control strategy, which is the voltage effective value feedback and inductance current instantaneous value feedback, is adopted

    針對級聯逆變器討論其pwm調制技術，在比較幾種pwm調制技術的基礎上，對該級聯逆變器採用倍頻載波移相調制技術，其輸出不含載波諧波，邊頻諧波次數比二階和三階調制的邊頻諧波次數提高一倍，等效開關頻率也提高一倍。
  4. We mainly investigate the second kind. linear stability analysis and numerical simulations will be used, and the evolution equation of a nonlinear resonator filled with kerr medium, the mean - field model for a nonlinear resonator filled with two - level atomic medium, second - harmonic generation system ( shg ) with quadratically nonlinear material, complex ginzburg - landau equation ( cgle ), and coupled map lattice model ( cml ) will be considered in this dissertation. the paper can be divided into three parts : pattern formation, pattern selection and control of stc, the synchronization and applications of stc

    以含有kerr介質非線性光學諧振腔發展方程、含有二能級原子介質的非線性光學諧振腔平均場方程、含有x ~ 2介質的光學二次諧波產生系統模型、及復金茲伯格?朗道方程和耦合映射模型等動力學系統為例，採用線性穩定性分析及數值實驗方法，研究了斑圖形成、斑圖的選擇和時空混沌的控制、時空混沌的同步及其在保密通信方面的應用等三大部分內容。
  5. The method for third harmonic generation of large - aperture high - power solid laser is described which is the second nonlinear effect of two cascade crystals in this paper

    摘要敘述了大口徑高功率固體激光器，利用兩塊級聯晶體的二階非線性效應，對激光輸出進行諧波轉換，實現三次諧波輸出的方法。
  6. Computation method based on fast fourier transformation ( fft ) is studied deeply, whose measurement accuracy is 0. 2s. the computing indexes involve voltage, current, power, frequency, phase, electric power, the harmonic ratio and the total harmonic distortion ( thd ) of phase voltage and phase current

    深入研究了測量精度為0 . 2s級的基於快速傅立葉變換（ fft ）的電壓、電流、功率、頻率、相位、電能等電力參數和各相電壓電流各次諧波含量、諧波含有率、諧波總畸變率的計算方法。
  7. In laboratory, this system has fulfilled the measurement of simulant large current and high voltage, with the precision better than 1 % to the fundamental wave

    在實驗室中成功測量了模擬大電流與高電壓，基波測量精度優於一級，對其它各次諧波的測量精度滿足國家標準要求。
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