載波檢波 的英文怎麼說
中文拼音 [zǎibōjiǎnbō]
載波檢波
英文
carrier detection- 載 : 載Ⅰ名詞(年) year : 一年半載 six to twelve months; six months to a year; 三年五載 three to five ...
- 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...
- 檢 : Ⅰ動詞1 (查) check up; inspect; examine 2 (約束; 檢點) restrain oneself; be careful in one s c...
- 載波 : signal carrier; carrier wave; carrier: 3路載波 three channel carrier載波傳輸 carrier transmission...
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The formation of standard vice carrying - wave used by v identical wave detector in color tv
同步檢波器用基準副載波的形式This method not only solve the problem of measuring the millimeter - wave detector system on projectile and testing on shooting range, but also bring forth a effective measuring way, and supply a good conditions for target identifying
該方法不僅解決了彈載毫米波輻射計的系統檢測和靶場試驗測試問題,為型號研製、試驗及生產等環節提供了有效地檢測手段,也為目標識別研究提供了良好的條件。This signal is used to indicate whether a modem is connected to a working phone line and a data carrier signal is detected
此信號用於指示是否數據機已連接到正常工作的電話線並檢測到數據載波信號。4. in data acquisition system, the application of phase - locked and synchronous detection reduce the cost of the whole system and improve the sensitivity. carrier signal and modulation signal achieve entirely synchronous too
數據採集系統採用鎖相技術、同步檢波的原理,降低了整個系統的成本,提高了靈敏度,並使得載波信號與調制信號完全達到同步。This thesis researched the time synchronization method for 2d - ss system, and deeply discussed the bit error rate ( ber ) performance of multicarrier domain spread spectrum chip - level differential detection ( mc - ss - cldd ) in the presence of multi - user interference
本論文從多載波擴頻通信系統出發,提出了廣義二維擴頻系統的同步演算法,並對多載波頻域擴頻碼片級差分檢測技術在多用戶情況下的系統性能進行了深入的研究。The leec biochip can be connected with pcb ( printed circuit board ), thus it can generate a moving electric field by changing time, scope and field intensity discretionarily under single chip processor ' s control. meanwhile it is probable to reduce driving voltage and decrease temperature greatly, and so increase resolution of dna separation
研究內容包括線性分散式電極陣列的理論設計,以普通載波片和有機高聚物pdms ( polydimethylsiloxane )為基本材料的晶元製作工藝, leec晶元和pcb板的連接方式,硬體控制系統的設計以及控制晶元工作的單片機程序編制等,此外還包括電化學檢測方法的研究。Based on the six - port relative power theory that for a given load the relative power ratios of different ports are left unchanged with the input power to the six - port varied, characteristic parameters of detectors can be obtained through the least - square method
根據六埠相對功率理論即對某一負載各埠相對功率比值不隨輸入功率變化,由最小二乘法得到檢波器的特徵參數,結合四標準法,確定六埠網路的系統常數。In the paper, prescale technology, interpolate method, averaging method and multiple period synchronization method are used to measure the frequency accurately. diode demodulating technology, and power attenuated method or probe coupling & water load technology are employed to measure the power of high power microwave. isothermal technology is used to improve the stability of demodulator and to expend the range of square linear region
本文採用預分頻法、內插法、多周期同步法、平均法實現了頻率的精確測量;利用二極體檢波技術,結合衰減法或探針耦合+水負載技術實現了大功率微波功率的測量;採用恆溫技術提高了二極體檢波器穩定度;完成了單片機串口通信協議設計和系統電磁兼容的分析和設計。Seismic survey is a new method used to civil engineering area in recent years. it was widely applied to survey or detecting of roadbase, dam base, foundation of building, tunnel, river bed, lake bed and etc. the chief methods are reflection method, refraction method, wave velocity testing, surface ware survey and transverse wave suivey. seismic survey can divide different layer, measure the incidence of sediment stratum, detect the structure of rock, test the handle effect of surface wave survey, we can calculate the carrying capacity of foundation and other mechanical parameters. this technique can give service to some big engineering departments such as highway developing company, survey design company, water supply company, plan bureau, construct bureau etc
應用於工程的主要方法有反射波法折射波法波速測井面波法及橫波勘探等。地震勘探能詳細劃分地層高精度地確定沉積地層的傾角能夠準確探明巖體構造褶皺斷層破碎帶裂隙帶對于回填工程路基壩基,地震勘探可以檢測其回填處理效果對于隧道工程,可以探測隧道洞體的圍巖分類及洞口地質情況利用面波勘探所得到的瑞利波速度,可以準確推算地基的承載力動彈模量等力學參數。There are five parts are as follows : in part one, the concept of switching function is introduced first to establish the nonlinear mathematical model of the induction motor variable frequency speed adjustment system which is fed by a sine pulse width modulated ( spwm ) inverter and takes the effect of the main magnetic circuit saturation into consideration, then the low frequency oscillation of the system is simulated according to the model. next, from the view point of energy conversion of the inverter - induction system, a criterion for the low frequency oscillation is proposed to determine whether the system is in low frequency oscillation which is judged by whether the interval of the negative current component of the inverter input current is more than 1 / fc ( fc is the carrier wave frequency of the inverter ) or not
首先引入開關函數概念,建立了正弦脈寬調制( spwm )逆變器供電異步電動機,考慮主磁路飽和時的變頻調速系統整體數學模型,模擬系統的低頻振蕩;其次從逆變器-異步電動機系統能量轉換角度出發,提出通過檢測逆變器輸入電流中負電流的間隔時間是否大於1 / f _ c ( f _ c為逆變器載波頻率)來判定系統是否出現低頻振蕩;最後的實驗結果驗證了系統低頻振蕩建模和判據的實用性和正確性。To detect the micro particles of metal is based on the phenomenon that when a metal micro particle passes through an electromagnetic field with constant speed the receiving carrier phase is changed
根據電磁場中恆速通過金屬微粒會引起接收載波信號相角變化這一現象來檢測金屬微粒。Investigation on rf power amplifier imd detection and carrier cancellation
射頻放大器互調失真檢測和載波抵消的研究The medium access control ( mac ) layer protocol of the airlink interface between the mobile data base station ( mdbs ) and mobile end systems ( m - ess ) in cellular digital packet data ( cdpd ) is studied firstly. the access method of slotted non - persistent digital sense multiple access with collision detection ( dsma / cd ) is described mainly
本文首先研究了蜂窩數字分組數據( cdpd )空中介面中的介質接入控制層( mac )協議,詳細論述了基於時隙的非堅持的、帶沖突檢測的數字載波偵聽多址接入協議( dsma cd ) 。Standard for quality inspection and evaluation of petroleum construction engineering. telecommunication engineering toll open - wire carrier equipment installing engineering
石油建設工程質量檢驗評定標準.通信工程長途通信明線載波電話安裝工程The paper contains all kinds of knowledge related to the system, including maxwell electromagnetic theory, pattern of optical radiation in space, channel model of atmosphere communication, computer communication protocols, wireless lan communication protocols, medium access control protocol, carrier sense multiple access / collision detection protocol, manchester coding theory, pulse position modulation coding theory and so on
主要包括: maxwell電磁理論;發送光場模型;空間通道模型;計算機網路通信技術:無線局域網通信技術;媒體訪問控制規程( mac ) ;載波檢測多址接入碰撞檢測規程( csma cd ) ;曼徹斯特編碼與ppm編碼技術等。Carrier sense multiple access
載波檢測多址Gets the state of the carrier detect line for the port
獲取埠的載波檢測行的狀態。This property can be used to monitor the state of the carrier detection line for a port
此屬性可用於監視埠的載波檢測行的狀態。Csma cd. test methodology for ieee standards for local and metropolitan area networks - specific requirements - part 3 : carrier sense multiple access with collision detection csma cd ; access method and physical layer specifications
局域網和城域網ieee標準的試驗方法.特殊要求.第3部分:沖突檢測載波檢測多路訪問Csma cd information technology - telecommunications and information exchange between systems - local and metropolitan area networks ; specific requirements - part 3 : carrier sense multiple access with collision detection csma cd access method and physical layer specifications
信息技術.系統間的遠程通信和信息交換.局域網和城域網.規范要求.第3部分:帶沖突檢測存取方法的載波檢測多路訪問分享友人