空號同步 的英文怎麼說
中文拼音 [kōngháotóngbù]
空號同步
英文
spacehold-
For the bldcm which has a pseudo - sinusoidal back - emf waveform, this dissertation presents a svpwm control method using six discrete position signals for minimizing the torque ripple. the main aspects for the implementation of this method are analyzed, including the initial orientation of the voltage vector, reasonable choice of the impedance angle and the advance commutation angle, and estimation of the successive rotor positions
針對反電動勢類似正弦的準正弦波反電動勢無刷直流電動機，本文提出一種基於六個離散位置信號的自同步svpwm （電壓空間矢量法）控制方法，用以削弱電磁轉矩脈動，分析了實現這種方法的主要控制環節，包括起動時電壓空間矢量的初始定位，阻抗角與電流超前角的合理選擇以及連續轉子位置的估計等。Synchronous pulse generating circuit : got by back panel output 1pps 、 1ppm 、 1pph synchronous pulse signal. pulse is photoelectric isolation static idle contact form output
同步脈沖發生電路：通過後面板輸出秒（ 1pps ） 、分（ 1ppm ） 、時（ 1pph ）同步脈沖信號。脈沖是光電隔離的靜態空接點形式輸出。Also it can effectively solve the main " four - threat " of single radar system. however, there ' s some problems must to be resolved, such as time synchronization, space and phase synchronization, signal processing, and clutter constricting, etc. this thesis concentrates on the time synchronization and phase synchronization of bistatic radar system
雙基地雷達體制和系統結構上的特殊性決定了它在技術上具有不同於傳統雷達的一些特點，所以雙基地雷達系統的研製首先需要解決時間同步、頻率和相位同步、空間同步、信號處理、雜波抑制等關鍵技術。The key problem to be solved in multi stations tdoa system is spatial and time synchronism between stations, weak signal detection and solution for high precision location equation
多站時差定位系統也有其自身要解決的關鍵技術和難點:多接收站之間的時間、空間的同步問題，目標回波的弱信號檢測問題，高精度的定位方程組求解方法。Secondly, some encryption algorithms are introduced, with the analysis and comparison for these encryption algorithms, the author designs an appropriate project to accomplish the end - to - end encryption. thirdly, this paper accomplish the design of an encryption scheme which combining the strongpoint of the rsa algorithm and the idea algorithm. the main process is as following : first, input the digital signal to the encryption device, and then the digital signal exclusive or with the keying sequence which is generated by key stream generator ( ksg ) and the ksg is based on the idea encrypting and deciphering algorithm, the secret key synchronization is also studied
本課題主要研究的內容是數字集群通信系統加密機制的研究，首先介紹了數字集群通信系統的安全保密機制，講述了單向和雙向鑒權的過程、單呼和群呼的空中介面加密過程及其密鑰的選用和管理，特別介紹了端到端加密;然後介紹了幾種常用的加密演算法，通過分析其優劣，提出了端到端加密的解決方案;最後完成了基於rsa演算法和idea演算法的數字集群通信系統加密方案的設計，其具體過程為將經過數字信號送入加密器里，和以idea加密演算法為基礎設計的密碼流發生器（ ksg ）產生的密碼序列進行加解密運算，並且研究了此加密過程的密碼同步問題。The mssr mode s technology, which was introduced firstly for the purpose of air tranfic control ( atc ) system, is based on the individually addressing and selective interrogation technology. the mode s can overcome many problems exist in mode a / c, such as signal interference, limited aircraft identification, garble and fruit, and provides the ability to build digital data link. many countries and organizations do them best to support researches about the communication, navigation and surveillance technology, which are all based on the mode s, and many productions have been adopted step by step by the international civil aviation organization ( icao ). so, to research the key technologies of mode s will contribute a lot to the development of domestic aviation system, especially for the air control system, identification friend foe and navigation system
它建立在獨立編址、選擇性詢問的基礎之上，能夠解決在模式a / c中存在的信號干擾、有限的信息編碼、幻影（ garble ）和異步應答（ fruit ）等問題，同時在數據鏈路方面有著巨大的潛力。國際上，模式s的數據鏈技術得到了廣泛的關注，許多國家和組織大力支持基於模式s的通信、導航和監視技術以及航空管理新技術的研究，許多成果正逐步被國際民用航空組織（ icao ）所採用。因此，對模式s核心技術的深入研究對於我國在航空管理、敵我識別、導航等方面的發展有著重大的意義。The satellite split off from the rocket about 25 minutes after its 00 : 20 entering a geosynchronous transfer orbit
「鑫諾二號」衛星於29日零時20分點火升空， 25分鐘后與運載火箭分離，進入地球同步轉移軌道。Multimedia services to the chinese mainland, hong kong, macao and taiwan. the satellite split off from the rocket about 25 minutes after its 00 : 20
「鑫諾二號」衛星於29日零時20分點火升空， 25分鐘后與運載火箭分離，進入地球同步轉移軌道。After the induction of iptg, the extracellular proteins of pet22asg / bl21 ( de3 ) plyss showed blue when treated with gus staining solution ; but the extracellular proteins of ck : bl21 ( de3 ) plyss showed no color change with the same treat. these results verified the function of secreting protein by grb - ast signal peptide
將表達載體pet22asg導入表達宿主菌e . colibl21 （ de3 ） plyss ，經iptg誘導表達，其胞外蛋白以gus染色液處理顯藍色；而對照空宿主菌bl21 （ de3 ） plyss誘導表達后，經同樣的處理，顏色無明顯變化，這初步證實了ast信號肽具有一定的分泌蛋白的功能。In this paper, the spatial operator algebra theory has been dissertated systemtly it is the great contribution to project, science and appled mathematics for the multibody system dynamics based on the spatial operator algebra. it compared mechanics with cebernetics, signal process and other relevant subjects, and find out their common points, and applicated the algorism structure developed by kalman and riccati to the resolvation of multibody system dynamics, and realized the mutual penetrate from mechanics to cebernetics. in the future, such penetrate will be strengthened more, so which will form the ideal and unitive base of mechatronical project subject
本文系統地論述了空間運算元代數理論體系，基於空間運算元代數的多體系統動力學是對工程、科學和應用數學的重大貢獻，它通過比擬力學和控制以及信號處理等相關學科，找出這些學科的共同點，把kalman ， ricatti等發展的計算結構和方法應用到多體系統動力學解算，實現了力學與控制學科的相互滲透，在將來通過不斷深入研究，這種學科的交叉與滲透必然會進一步加強，由此可進一步奠定機械電子工程學科完美統一的理論基礎。The borrower further irrevocably consents to service of process upon it out of said courts in any such action or proceeding by mailing copies thereof by united stated registered air mail, postage prepaid, to the borrower at the address specified in section10. 5 hereof
借款人進一步不可撤消同意上述法院就該事宜訴訟或程序的送達，接受按照本合同第十條第五款指定的借款人地址寄來的美國航空掛號信，郵資已付郵件中的副本。Realized stc synchronization in cgle by using several methods, such as noise induced synchronization, chaos signal driven synchronization, regular signal driven synchronization, substituted signal driven synchronization
採用多種方法實現了金茲伯格一朗道方程中時空混沌的同步，包括:噪聲感應同步，混沌信號驅動同步、規則信號驅動同步，替代信號驅動同步等。This paper applies wavelet theory to process data analysis, mostly focusing on signal de - noise and data compression. the main contributions of this thesis are as follows : 1 ) as discussion and experiment of de - noise method for removing white, noise from pulp thickness signal, a method was developed by utilizing the different characters of evolution of the wavelet transform maximum across scale of efficient signal and noise
本文所作的工作如下： 1 ）利用小波變換下有效信號和噪聲在多尺度空間中不同的模極大值傳播特性，給出了一種去除紙漿濃度檢測信號中的白噪聲的演算法，編制了相應的程序，作為對紙漿濃度檢測信號去噪方法的初步探討和嘗試。This dissertation analyses the characteristics of chirp - subpulse stepped frequency signal, and analyses and resolves kinds of problems in chirp - subpulse stepped frequency signal. this dissertation studies the use of chirp - subpulse stepped frequency signal in low altitude moving target, and studies and provides theoretical basis for practical application of chirp - subpulse stepped frequency signal and processing techniques
本文對chirp子脈沖頻率步進信號特性進行了研究，並對研究過程中出現的各種問題進行了分析並提出了解決方案;同時，對chirp子脈沖頻率步進信號在低空動目標檢測領域的應用進行了研究，為chirp子脈沖頻率步進信號的實際應用提供了理論依據。Second, introduce the dyadic wavelet analysis, and use it realized the signal monitor and analysis to the turbine compressor, obtained the detail signal and approach signal at different frequency parts of the compressor s original signal. one type of electromotor that made in china is choose, and it s noise is tested. the noise signal is analyzed by wavelet analysis and spectrum analysis. several high spectral peaks that make people hearing disameniry are found. by contrast with theory calculating results and farther analysis. the cause that producing these spectral peaks is located
其次，介紹了二進小波分析，並應用二進小波分析實現了對透平壓縮機信號的監測分析，得到了壓縮機原始信號在不同頻率段分解的細節信號和逼近信號。用小波分析和譜分析相結合的方法對某國產電機的噪聲進行了分析，找出了人的聽閾不閱的幾個高譜峰位置，進行了空氣動力噪聲計算，通過與理論計算結果進行對比分析，進一步找出了產生該頻閩譜峰的幾個原因，第三，介紹了諧波小波和分形的基本原理。In large rotating machinery using filmatic bearing ( turbogenerator, air compressor, etc. ) there is a potential trouble from impefect installation or running conditions, a metals " contact between rotors and shells. the trouble is usully called rubbing. the advantage of ae technologe in the rubbing diagnosis and early detection is showed. instead of classical ae characteristic parameters ( counts, amplitude, energy, duration and the other ones ) a new feature extraction by frequency analysis of ae envelop signals is discussed. both research of ae process and field experements indicate that periodic components in the envelop spectrum related to rotational speed increase evidently at the beginning of rubbing production, hence are highly sensitive to the rubbing fault diagnosis. according to the new design an acoustic emission equipment for the rubbing diagnosis named buaa ae testing system is developed and described
汽輪發電機、空氣壓縮機等採用油膜支撐的大型轉動機械，由於安裝或運行中的原因，在轉子旋轉過程中，可能和器壁發生輕微的摩擦和碰擊，簡稱碰摩.聲發射技術在碰摩發生特別是故障早期診斷上有優越性.本系統的特點是沒有沿用傳統的計數、幅度、能量和持續時間等聲發射特性參數，而是在聲發射包絡信號的頻率分析中進行特徵提取.聲發射發生的過程分析和現場試驗都表明這種方法對碰摩檢測很敏感，在碰摩發生的起始階段，包絡譜中與轉速同步的周期性分量顯著增加.根據這種新的設計思想自行研製了buaa碰摩聲發射檢測儀並對此作了介紹分享友人