移相調制 的英文怎麼說

中文拼音 [xiāngdiàozhì]
移相調制 英文
outphasing modulation
  • : Ⅰ動詞1. (移動) move; remove; shift 2. (改變; 變動) change; alter Ⅱ名詞(姓氏) a surname
  • : 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...
  • 調 : Ⅰ動詞1 (配合得均勻合適) harmonize; suit well; fit in perfectly 2 (使配合得均勻合適) mix; adju...
  • : Ⅰ動詞1 (製造) make; manufacture 2 (擬訂; 規定) draw up; establish 3 (用強力約束; 限定; 管束...
  1. The device mainly consists of integrated phase - shift trigger unit, detection unit, amplification and impedance conversion unit, the smallest excitation limitation unit, reactive regulation unit and three - phase controlled bridge rectifier

    本裝置主要包括集成觸發單元、檢測單元、放大及阻抗變換單元、最小勵磁限單元、無功調查單元和三全控橋。
  2. 1 m 0. 5, the phase - shifted angle 6 is controlled in term of sine law which makes the magnitude of resonant voltage track a reference sine voltage, and the resonant voltage is rectified, filtered, inverted and then the better sine - voltage output is obtained, theoretical analysis and experimental results show that for the resistive load and inductive load, the switches of leading leg of the phase - shift - controlled circuit are always turned on at zvs, and ones of lagging leg are turned on at zvs ( < 0 ) or turned off at zcs ( ( > 0 ), moreover, all switches in the low - frequency inverter are always turned on and off at zvs, the measured circuit efficiency for rated load reaches up to 88 %

    從功率單向流動角度出發,提出了一種lcc諧振型恆頻高頻鏈逆變電路拓撲,在調系數0 . 1 m 0 . 5情況下,控角按正弦規律變化,使諧振電壓脈沖列的幅值追蹤參考正弦電壓信號,經過整流、濾波、低頻逆變,從而獲得正弦度較好的輸出電壓。理論分析和實驗結果證明對于阻性負載或阻感性負載,全橋具有超前橋臂零電壓開通,滯后橋臂或者零電壓開通( _ 0 )或者零電流關斷( _ 0 )的軟開關特性,而低頻逆變器的各個開關均實現零電壓條件下的開通與關斷。
  3. It is found that flat and wideband sc ca n ' t be obtained in common dispersion - shifted fiber, and dispersion - flattened fiber with small normal gvd is most suitable for flat and wideband sc generation ( 2 ) sc generated in dispersion - flattened / decreasing fiber is studied profoundly

    結果表明,利用自調效應在常規色散位光纖一般不能產生平坦、寬帶的sc譜。具有較小正常色散的色散平坦光纖有利於平坦、寬帶sc譜的形成。 ( 2 )研究了色散平坦漸減光纖中sc譜的產生。
  4. The parameters contain impulse noise, memory effect, scan correlated shift, coherent noise, random noise, dropped lines, inoperable detectors, saturated detectors, mtf, system resolution

    輻射性能參數包括脈沖噪聲、記憶效應、掃描關偏、一致噪聲、隨機噪聲、丟失行、不可操作探測器、飽和探測器、調傳遞函數、系統解析度。
  5. Then pid flow rate control algorithm is introduced. all experiments made in this chapter are about measuring the valve parameters according to spool positions, single actuator flow rate control by the calculated flow rate feedback control method, free flow rate dividing control under the sufficient pump discharge flow rate situation, proportion flow rate dividing and flow rate dividing based on meter - in flow rate feedback control method under insufficient pump discharge flow rate situation. the results of all experiments proved that the method presented in this thesis is an effective way to overcome the unreasonable flow rate dividing when simultaneously operating multi - actuators with different inertia loads

    第四章介紹了多執行器復合控實驗系統和實驗方法;介紹了實驗採用的流量控的pid演算法;並測定了執行器控閥和閥芯位關的系數;做了單個執行器計算流量反饋流量控、流量足夠情況下多執行器流量任意分配、流量不足情況下多執行器按比例調節流量分配和多執行器進油側流量反饋分流控實驗;通過實驗說明了論文提出的分流控方法能實現大小慣性負載復合操作時的合理分流。
  6. At the aspect of hardware design, it adopts pulse distributor and the technology of single polar voltage drive to accomplish the function of controlling and driving stepmotor ; it adopts the technology of pulse width modulation and cmos h - bridge drive to accomplish the function of controlling and driving dc servomotor ; it adopts d / a convertor to accomplish the function of controlling ac transducer ; it adopts the technology of digital phase detection to accomplish the function of detecting the feedback position signal of induction phase shifter ; it adopts dsp ’ s capture cell to accomplish the function of detecting the feedback position signal of photoelectric coder

    硬體方面,採用脈沖分配器和單極性電壓驅動技術實現了步進電機的控和驅動功能;採用脈寬調技術和cmos互補h橋驅動技術實現了直流伺服電機的控和驅動功能;採用d / a轉換器實現了交流變頻器的控功能;採用數字化位檢測技術實現了感應器位置反饋信號的檢測功能;採用dsp的捕獲單元實現了光電編碼器位置反饋信號的檢測功能。
  7. In this paper, research and manufacture work on high efficiency high power density high - voltage high - power dc power is undertaken on the basis of basic theories and past production. by inquisition the basic theory and project of sreies - parallel resonant converter witch is a soft - switch converter was selected to outspread research and design work

    本文是在吸收前人研究成果的基礎上,理論聯系實際,針對高效、高功率密度、高壓大功率直流電源展開的研製工作。在經過大量的實際調研工作的基礎上,選擇了一種軟開關變換器(的串-並聯諧振變換器)的技術方案,並圍繞該方案展開理論研究和實際的設計工作。
  8. By means of the calculation results of interlaminar stress distributions, the influence of delamination growth on the resultant fatigue lives is qualitatively discussed, realizing that a more comprehensive analytical model is essential to include the effect of stacking sequence and the arosing interlamina stresses on fatigue behaviors of laminates. the recommended scheme was also used to calculate the fatigue lives of specimens with central holes subjected tensile - compressive cyclic loadings and has got comparable estimations with experimental results

    發現和修正了有關文獻中的一些錯誤,重新建立了斷裂筋條彎曲修正的公式和位調方程,編應的計算程序,根據計算結果探討了斷裂筋條和筋條彎曲對蒙皮裂紋的影響,指出了有的文獻上給出的計算曲線存在的謬誤。
  9. The excursion of centroid position of focal spot may be easily acquired with the centroid position expression of focal spot

    利用焦斑質心位置表達式,可分析和確定由於振幅調位畸變導致的質心位置偏
  10. Take wulatezhong banner of inner mongolia region as an example, the sustainable development of ecological emigration in prairie areas was analyzed, and the further development suggestion was put for ward : choosing the suitable ecological emigration region where population and resources and environment are developed coordinately ; preventing from government - contradiction in putting into practice ; taking the ways of development - oriented ecological emigration ; encourages the government and enterprises to participate the project and set up ecological environment tax and transfer payment system for immigration and so on

    摘要本文以內蒙古烏拉特中旗為例,對草原牧區生態民可持續性問題進行了分析,並提出進一步發展的思路:選擇人口、資源與環境調發展的區域為民點,民過程中需要防止「政府悖論」 ,走開發型生態民道路,政府關部門參與牧民轉,鼓勵企業參與牧民轉,設立生態環境稅和生態民轉支付度等。
  11. This thesis analyzed the error performance of mfsk and mpsk modulator in hf with optimal receiver, studied the shortcoming and strongpoint of several typical short - wave data transmission systems and their performance over fading and intersymbol interference channels. the theory and key technical of adaptive modem is discussed. in the last, an efficient modulation scheme - block coded modulation is introduced into hf radio systems to improve the efficiency of hf data transmission, this paper also proposes a hf data transmission system scheme composed of a block coded modulator and a decision feedback type adaptive equalizer

    本文在對短波數傳兩種常見調方式fsk及psk最佳解調性能分析的基礎上,討論了幾種採用典型調技術的短波數傳系統(如時頻調、多進鍵控慢跳頻、 chess系統)原理、優缺點以及抗衰落和抗符號間干擾的性能;分析了自適應串列數傳系統抗短波通道衰落和多徑干擾的原理、關鍵技術;在本文的最後引入一種有望解決短波數傳系統低效率狀況的調方式bcm -分組編碼調,給出了一個採用bcm技術與自適應均衡技術結合的短波數傳系統方案,並通過計算機模擬進行了初部驗證。
  12. Due to the complexity of the structure and control of cycloconverter - type three - phase hf link inverter for soft - switching based on phase - shift - controlled full - bridge mode, a simple and optimized vvvf control strategy is proposed. this control strategy includes : produced pwm by space voltage vector ( svm ) and equivalent carrier frequency fe = 1 / te are introduced into the pdm control of the cycloconverter ; softened equivalent pwm wave is generated at the notches of hf voltage pulses ; the harmonious control between regulating pulse width by phase - shifted angle and regulating voltage of equivalent pwm is to minimize the harmonics content of output voltage of the inverter

    西安理工大學博士學位論文針對這種前級全橋軟開關周波變流型三高頻鏈逆變器結構和控的復雜性,提出了一種實現簡單而整體優化的vvvf控策略:將空間電壓矢量產生p姍的方法svm和等效載波頻率fe = 1 / te引入到周波變流器的pdm控;按高頻電壓脈沖前後沿軟化等效p翎波;用調節高頻脈沖寬度和等效p姍調壓協調逆變器輸出電壓,在滿足輸出電壓條件下使諧波最小。
  13. 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調技術,在比較幾種pwm調技術的基礎上,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的邊頻諧波次數提高一倍,等效開關頻率也提高一倍。
  14. Among them, phase shifted ( ps ) full bridge ( fb ) zero - voltage - switched ( zvs ) pulse - width - modulated ( pwm ) dc / dc converter has strong competitive power in big power capacity fields. but it has some limitations such as smaller load range with zvs and larger circulation energy. the ps - fb - zvs - pwm dc / dc converter with a saturable inductor utilizes saturable inductor s critical saturable current characteristic and storage energy, to enlarge load range with zvs and improve output efficiency under light load

    其中,零電壓開關脈寬調dc / dc全橋變換器在大容量領域很有競爭力,但它具有實現零電壓開關負載范圍小,循環能量大等限,帶飽和電感的零電壓開關全橋變換器利用飽和電感的臨界飽和電流特性及儲能,來擴大零電壓開關( zvs )的負載范圍,提高輕載時的輸出效率,具有非常重要的研究價值。
  15. A new mathematical and physical models based on the method are established. and the ways to carry out the models by full electric circuit are proposed

    建立了位調條紋細分技術的數學物理模型,提出了用硬體實現條紋動探測技術途徑。
  16. Finally, the operation principle of three - level shift phase pwm control with zero voltage is validated by the simulation analyze and the debugging experiment of 230v / 10a sample device

    最後,通過模擬分析以及對230v / 10a樣機的調試實驗,驗證了零電壓三電平pwm三電平直流變換器的工作原理。
  17. These years more and more emphasize have been focused soft - switching control in phase - shifted zvs pwm full - bridge dc / dc converter and more research need to be made. the principles of phase - shifted zvs pwm full - bridge converter are described and analyzed

    基於的零電壓脈寬調dc - dc全橋變換器是軟開關控的一個研究熱點,還有許多理論問題需要研究。
  18. At the point of keeping the quality of the output waves, optimal spwm scheme with phase - shifted control technology has a simple adjusting voltage circuit and the system with this technology has a good reliability

    調壓最優spwm控技術,在保證波形質量的前提下,調壓電路簡單,系統可靠性高。
  19. The principles and key techniques of phase - shifting interferometry, the phase - shifting modulation of pyroelectric cameras and so on are analyzed in this dissertation

    文中分析了儀器涉及到的干涉、熱釋電攝像儀的移相調制等原理與關鍵技術。
  20. It can prevent the output timing of the column driving signal from coinciding at neighboring columns, eases the concentration of supply current, and reduces power consumption, integrate the idea of alternating current driven method and gray - scale plus shifting modulation, we designed the software which includes both of the functions for oled driving chip

    為了減小了顯示系統在灰度初始輸出時間對電流供應的集中需求,在參考關專利后,更改了專利中提及的一些比較器的函數關系,在波形模擬上實現了oled顯示數據8級灰度的調輸出。
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