相位同步電路 的英文怎麼說

中文拼音 [xiāngwèitóngdiàn]
相位同步電路 英文
phase locking circuit
  • : 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名詞1 (所在或所佔的地方) place; location 2 (職位; 地位) position; post; status 3 (特指皇帝...
  • : Ⅰ名詞1 (步度; 腳步) pace; step 2 (階段) stage; step 3 (地步; 境地) condition; situation; st...
  • : Ⅰ名詞1 (有電荷存在和電荷變化的現象) electricity 2 (電報) telegram; cable Ⅱ動詞1 (觸電) give...
  • : 1 (道路) road; way; path 2 (路程) journey; distance 3 (途徑; 門路) way; means 4 (條理) se...
  • 相位 : phase position; phase
  • 電路 : [訊] circuit (ckt); electric circuit; electrocircuit電路板 circuit board; 電路保持 guard of a c...
  1. In this thesis, firstly, we put forward a new algorithm of the synchronization of carrier reference phase, that is to use the curve synthesizing with the general digital carrier phase looper to have an estimation on carrier frequency within 10 ms so as to meet the need of meteor burst communication. we have done some simulations to get the performance of carrier frequency estimation using two modulation modes ( 16qam and 4 - qpsk ), and had some test on the carrier phase looper in conditions when using different baud rate transmission and when the baud tuning have windage

    我們對兩種正交調制方式( 16qam和4 - qpsk )進行了模擬工作並給出了模擬結果,時討論了碼元定時誤差對鎖工作的影響並根據流星通信中使用變速率傳輸時鎖的載波性能進行了測試;然後在基於軟體無線思想的數字處理平臺(該數字處理平臺實現了中頻數字化)上用dsp軟體完成了載波的跟蹤。
  2. Three parts are included as follows : first of all, the basic circuit equation of radial pm generator for autos is given. the effect of reciprocity of pm and winding ' s magnetic force upon winding ' s inductance and current upon magnetic circuit saturation are analysed. according to these, we can obtain optimized design

    首先,從本課題採用的徑向式結構的三永磁機的物理模型出發,得出其基本方程式,並分析了永磁磁動勢與繞組磁動勢間置的不而對繞組感不的影響,流對磁飽和效應的影響,為車用永磁發機的優化設計提供了理論依據。
  3. Then, this thesis presents an algorithn of 2 - terminal quantity fault location based on synchronous gps sampling. this algorithm conducts fault location with only the 3 - phase fundemental wave voltage and current phasors of the 2 terminals of transmission lines and apples to lines of both symmetrical and asymmetrical parameters, irrelerant to the impedence, fault types and transitional resistance of the 2 terminals of lines

    然後,本文提出了一種基於gps采樣的雙端量故障測距演算法。該演算法僅利用輸兩端的三基波壓、流分量來進行故障定,不受線兩端系統阻抗、故障類型、過渡阻等因素的影響,對參數對稱線和非對稱線均適用。
  4. Now, with the rapid development of computer and electronics, there have been a great progress in the field of input / output device technology. among this field, pci has been a current standard interface of pc. and in order to accommodate the development of operating system, wdm has been a driver model adopted by industry generally. at the same time, in the respect of sensor ’ s application, a high precision and high integrated incremental rotary encoder has been an outstanding one among the displacement sensors. meanwhile, eda technology and cpld / fpga chip applied in the signal processing circuit are approved by a great number of engineers who are engaged in designing the electronic device

    目前,隨著計算機技術和子技術的飛速發展, i / o設備介面控制技術領域有了長足進。其中, pci介面成為主流的微機標準介面,而與操作系統平臺的發展適應, wdm已成為業界普遍採用的驅動程序模式;時,在傳感器應用方面,高精度、高集成的增量式旋轉編碼器已是移型傳感器中的佼佼者,而eda技術和cpld / fpga器件在信號處理中的應用被廣大子設計人員所認可。
  5. Based on the comprehensive analysis of the application status and the existed problems of transmission line fault location, this dissertation presented a new algorithm for fault location based on two - terminal asynchronous data, which can make correction for the integrate error of line parameter, length of transmission line, sampling value and so on. at the same time, it can work out the two - terminal asynchronous phase angle with the corrected parameters

    本論文在充分分析了國內外故障測距的理論與技術以及存在的問題后,針對輸故障定因線參數變化對定準確度的影響,提出了能夠對線的參數、長度和采樣值等誤差等進行綜合誤差修正( cie )的新演算法,並利用修正後的參數來求解兩端的不角差。
  6. To accept the current signal from high negative voltage circuit, the analog ground is raised to a certain positive voltage, which makes it possible for the signal amplitude to be compressed at the same time of its polarity reversion. a pi control program special for laser gyro current control is brought forward according to the conventional pid control method, in which the control signal is figured out corresponding to the difference between the sample and the reference value by turn of proportion - short step integral - long step integral. and at the end of this paper, a comparison of system performance on different conditions is made and the key elements influencing system performance are educed

    利用集成a / d 、 d / a轉換器的新型晶元aduc824 ,實現了流(壓)采樣?數據處理?流控制的閉環控制結構;地的抬升解決了a / d轉換器對負高壓迴流采樣時的輸入范圍匹配問題;控制信號反時進行幅度壓縮,使得輸出調整壓的解析度提高;根據常規的比例?積分?微分( pid )調節模型,針對陀螺系統的特性,給出了一種可以滿足系統要求、據采樣值偏差大小進行的比例?大長積分?小長積分、分層次比例?積分演算法;不條件下系統穩流性能的對比、分析在論文最後給出,並據此找出了決定該系統穩流精度的關鍵因素,提出了系統的改進意見。
  7. At the same time, the method of disposal phase shift of ct by compensation is introduced. then the analysis and statistic of electrical power quality, the control scheme and compensating amount of capacitor for reactive power compensation are analyzed respectively. and in the paper, the control with a / y and the switch with ac contactor and solid state switch is valid measure not only for improving operate level economically and amending electrical power quality but also for avoiding of replacing switch frequently and decrease economic loss

    然後對現有的演算法進行了詳細的分析、比較,篩選出既能滿足硬體要求又可降低投資、保證精度、簡化軟體的方案,確定了準采樣的方案,並通過對準采樣誤差的分析,提出了一種從45開始采樣,從而提高精度的采樣數據處理辦法,時,對于流互感器漂移提出了一種補償辦法,接著對裝置中能質量分析與統計以及無功補償中容器的補償量、投切原則也作了應分析,其中對于無功補償採用y混合接線,並利用交流接觸器和固態開關共投切容,不但提高了經濟運行水平、改善了能質量,而且有效的避免了頻繁更換開關,減少了經濟損失;最後,設計了裝置的硬體並繪制了應的軟體流程圖。
  8. In the first part of this paper, the theory of laser range and dds technology was introduced, the factors of influencing range precision were also analysed. at the same time, put forward in the paper, with using the fpga embedded technology, the wideband and high resolution sin modulating signals can be generated easily, then analysed the noise of the dds ; in the second part, the theory of phase measurement based on fft was analysed. in the phase range system, by using the fft operation, the resolution and sensibility of phase measurement can be enhanced ; then some circuits were designed and come true, also simulated and validated ; in last part, the improvement of the phase range system was brought forward, summarized and expected

    論文首先闡述了激光測距和調制信號源的基本原理,分析了影響測距精度的因素,指出應用dds技術可以實現寬帶、高精度的調制信號輸出,說明了引起dds輸出信號雜散的原因和解決的辦法;時分析了應用fft運算實現信號提取的基本原理及設計方法,採用這種檢技術,可以極大地提高測精度與靈敏度;然後提出了基於fpga嵌入式系統的式激光測距機的整體設計,並就各部分進行了詳細的分析與設計;接著介紹了激光測距系統的外圍和基於quartusii集成軟體平臺的部分硬體的設計,並對其中的設計進行了模擬和驗證;最後總結提出了對系統今後的進一改進和完善的思
  9. Secondly, two carbon fiber reinforced composite beams were fabricated, and their modal frequencies were measured by an experiment method. thirdly, delaminations were modeled by pairs of nodes with the same coordinates but different node numbers, while the modal frequencies of these beams with different delamination location and size were computed by an eas piezoelectric solid element. moreover, a novel method combining computational mechanics and neural network was demonstrated for composite health monitoring ; the first five flexure modal frequencies obtained by fem were modified by a primary revising approach and were used to train the neural network

    本文較全面地評述了神經網的應用模型、改進演算法等,編制了bp神經網程序:制備了纖維增強復合材料試件,並進行實驗模態分析;利用坐標、節點號不的方法模擬脫層損傷,基於eas列式的壓固體單元計算了不脫層損傷情況下的頻率信息;針對基於實驗數據訓練神經網存在樣本不足的缺陷,本文提出了利用有限元方法對含有脫層損傷的復合材料試件進行數值模擬,以前五階彎曲模態頻率構建訓練樣本的新思,並提出了一種初的計算值修正方法,以此構建神經網的訓練樣本:將實驗模態分析的結果送入訓練好的神經網進行預測,實現了對復合材料梁的脫層損傷的定和損傷程度的評估。
  10. Thereby, the choice of external timing source brought by the changing from the el to qel has been resolved. in the related chapters, the paper will explain the arithmetic of synchronization of bit, frame and multiframe in the pm4354 hardware and describe the software arithmetic and hardware sketch map of net synchronization

    本文在關的章節中將詳細地給出pm4354硬體上完成、幀和復幀的實現的演算法,並給出qe1在實現網過程中的軟體演算法和硬體示意圖以及在項目開發過程中,測試以上各種技術是否可行的技術方案。
  11. An idea is brought forth to design the total structure of the usb interface ip, the main control logic, the mcu interface ( the function is the same as the pdiusbd12 chip of the philips semiconductor ) and a dpll which is used to synchronize data and separate the clock. this paper also introduces packet recognition, transaction sequencing, sop, eop, reset, resume signal detection / generation, nrzi data encoding / decoding and bit - stuffing, crc generation and checking ( token and data ), packet id ( pid ) generation and checking / decoding,

    提出設計了usb介面的整體構架,設計了usb的主要控制邏輯和與mcu的互連的介面(此介面與飛利普的usb介面晶元pdiusbd12兼容) ,也設計了一個數字鎖環( dpll )來數據和分離時鐘,並對模式的識別、并行/串列轉換、填充/解除填充、 crc校驗/產生、 pid校驗/產生、地址識別和握手評估/產生做了具體的分析。
  12. Then, memory cell array and some parts of peripheral circuits used in sram, for example, sense amplifyier and adderss decoder, are designed and verifyied by simulation. furthermore, some novel methods, such as clocked hierarchical word decoding structure, multi - stage sense amplifyier, common data line and data bus equlibruim technology has been applied in the design of 128kbit and imbit sram. what ' s more, we have studied compiler technology applied in the designing course of a imbit full cmos sram from the pointview of methology

    然後對sram的存儲單元以及外圍中的靈敏放大器和地址譯碼器進行了設計和模擬,在此基礎上,以128kb和1mb全cmossram設計為例,從方法學角度對sram設計中的帶時鐘分等級字線譯碼,多級靈敏放大和線及總線平衡等技術進行了研究,並給出了應的compiler演算法。
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