通信收發信機 的英文怎麼說
中文拼音 [tōngxìnshōufāxìnjī]
通信收發信機
英文
communication transceiver-
The decision - making subsystem is the core of mas cooperation theoretic research and application ; its target is to resolve cooperation and motion problem of robot. the wireless communication subsystem makes the decision - making subsystem communicate with soccer robots. the soccer robot subsystem is the executive part of the system
決策子系統主要解決比賽過程中機器人之間的協作和機器人運動控制的問題,是多智能體協作理論研究和應用的核心;無線通信子系統完成決策子系統與機器人之間的數據通信,把控制命令發送給各個機器人;足球機器人子系統接收控制命令,按要求完成各種戰術動作,是系統的執行機構。City public the key problem that space face is design that growth method that development, wether is traditional or modern, all need to be existed in vigorous city replace, as if organism, since keep hypostatic spirit, need again the right alone metabolism ego renews, can keep on much more than only be used as a kind of concrete item reply the means, also is a kind of sport mode that have the timespace effect, passing to establish to study the - practice the investigative and circulating mode in - in -, realizing to design the process oneself of of keep on developping. in this process " practice " is a processor to changes spatial motive force, research is receive and dispatch the information
城市公共空間面臨的主要問題是發展,無論是傳統的還是現代的,都需要在激烈的城市變革之中生存,如同有機體的生長方式,既要保持本質的精神,又需要不斷的新陳代謝自我更新,可持續的設計不只是作為一種具體項目的應對手段,同時也是一種具有時空效應的運動模式,通過建立研究? ?實踐? ?研究的循環模式,實現設計過程自身的持續發展。在這一過程中「實踐」是改變空間的西安建築科技大學碩士學位論文原動力,研究是收發信息的處理器。The development of fieldbus technology made lonworks field bus outstanding in all kinds of fieldbus. this paper simply introduces some kinds of common using fieldbus and the important position and influence of lonworks fieldbus in all kinds of fieldbus, carefully describes the technology core of lonworks technology, puts great emphasis on the introduction of the development and design of public security node of intelligent district which adopts computer, communication and control technology, carefully designs the interfaces of hardware circuits. the public security node of intelligent adopts 8031 single chip as its main processor to complete the application program of user, which mainly collects, process and control all kinds of field signal, and neuron chip 3150 as its slave processor to communicate with other nodes on field network, which works under parrel slave a mode
現場總線技術的發展使得lonworks技術脫穎而出,本文簡要介紹了常用的幾種現場總線的概況以及lonworks技術在現場總線技術中的地位和影響,對lonworks技術的技術核心:神經元晶元、 lontalk協議、 lonworks收發器、 lonbuilder及nodebuilder進行詳盡的描述;重點介紹了集先進的計算機技術、通信技術、控制技術為一體的智能小區安防節點的開發與研製,對節點硬體電路的各種介面進行了詳盡的設計。本文設計的智能小區安防節點採用單片機8031作為主處理器來完成用戶的應用程序,主要負責對各種現場信號進行採集、處理及控制,工作在并行從a方式下的神經元晶元mc3150作為從處理器,主要完成與現場網路上的各節點及中心控制室之間的通信工作。The key technique include nip signal ' s generation, serial port 422 communication, control system data acquisition and processing, stationary wave ratio of antenna, sending and receiving signal ' s attenuation of antenna and so on
其關鍵技術包括nip信號產生, rs - 422串口通信,控制系統各模塊數據採集和處理,機載天線駐波比及收發信號衰減測量等。The analog signals are regulated to satisfy the system and analog - to - digital converter ( adc ) ; dsp is the core part and is connected with adcs, a controller of ethernet, a rs - 485 bus transceiver, a can bus transceiver and a clock. the real - time data is disposed by dsp and is transferred to the upper computer when the alarm is happened
模擬信號調理模塊對輸入的信號進行調理,以達到系統和模數轉換器( adc )采樣的要求; dsp作為系統的核心部件,外擴了adc 、以太網控制器、 rs - 485總線收發器、 can總線收發器和時鐘晶元, dsp對實時數據進行處理,當報警發生時將實時數據通過以太網上傳給上位機。With the objective of developing distributed simulation system of frequency hopping ultrashort communication countermeasure system, the federation architecture and the complex envelop simulation block diagrams of fr transmitter and receiver are presented at first
摘要以建立超短波跳頻通信對抗分散式模擬系統為目的,首先給出了聯邦的體系結構及跳頻發信機、接收機成員的復包絡模擬框圖。The constant frequency federation consists of five federates, which are communication transmitter, communication receiver, reconnaissance receiver, directionfinding receiver and jammer. all the federates adopt complex envelop simulation models
定頻通信對抗聯邦包含五個成員:通信發信機、通信接收機、偵察接收機、測向接收機和干擾機成員,各成員均採用復包絡模擬模型。In wireless communication, the relative movement between the transmitter and the receiver may cause the change of the electromagnetic wave propagation path, thus makes the channel become a random time - variety channel
在無線通信中,發射機和接收機之間的相對移動會造成電波傳播路徑的改變,從而使通道變成隨機時變通道。This paper mainly focuses on the noise limiting by means of the direct sequence spread spectrum ( dsss ) and the analysis of the transmission performance of the plc and some digital modulation technology. the contents of the paper is as follows : 1 ) the technical feasibility is proved after simulating noise limiting principle of dsss by means of systemview, the simulation software ; 2 ) a kind of band pass filter ( bpf ) is realized according to the requirement of filter and the principle of butterworth approximation, which satisfies the index of performance of dsss. 3 ) the low voltage plc system includes the sc1128, the specific modulation / demodulation ic, the bpf filter and other circuit components, furthermore, the control function of system is realized by means of the personal computer and the microcontroller
本課題在對低壓電力線的傳輸特性和數字調制技術進行分析的基礎上,將通信理論中的直接序列擴頻技術( dsss )用於解決低壓電力線通信的干擾問題,主要研究內容如下: ( 1 )用通信模擬軟體systemview對dsss技術的通信和抗干擾原理進行模擬分析,分別對時域和頻域下採用dsss技術前後接收信號的頻譜進行分析,驗證dsss技術在本系統中的可行性; ( 2 )由dsss技術對濾波系統的要求,根據濾波理論分析了巴特沃思型濾波器的逼近原理並設計了合適的濾波電路; ( 3 )用調制解調晶元sc1128和自行設計的濾波器加之輔助外圍電路,構造出低壓電力線載波通信系統,並採用atmel公司的單片機設計了接收和發射電路的微控制器; ( 4 )分別對採取抗干擾措施前後輸入和輸出信號進行對比實驗,並對結果進行分析,驗證了dsss技術對干擾信號的抑制作用。Ncaps is a novel satellite navigation system presented by scientists of cas recently, which is based on the prin ciple that the land control station transmits the navigation signals via communication satellites, other than special navigation satellites, to the ncaps receivers, in which the received signals are processed to obtain its detailed positioning information
空基導航系統代表有美國的gps和俄國的glonass衛星導航系統。 ncaps系統是我國科學家最近提出的一種新的衛星導航系統。其主要原理是:地面控制站利用通信衛星(而不是專用的導航衛星)轉發導航電文給接收機,接收機利用導航電文解算出本地位置。Then we introduce the character of the atmosphere channel, which we emphasized on the atmosphere scatter, absorption and scintillation ' s effect on the laser beam. in chapter, we explain why we used cassegrain telescope to collect the optical signal at first, then the lightsource, detector, front amplifier used in optical communication has been compared to that of fiber communication, the noise including shot noise, thermal noise and background light noise has been explained here for analysis the snr and ber in the next section
在第三章介紹無線光接入系統的光收發單元,採用多孔徑卡塞格倫式的收發天線對消除減小大氣湍流影響有較大作用,針對大氣通道的特點無線光系統收發單元在光源、光探測器、前置放大電路上存在許多有別于光纖通信的技術,同時還闡述了光接收機包括背景噪聲的噪聲機制和接收靈敏度、誤碼率等指標,最後給出了一個整個傳送鏈路的功率預算。In a remote communication system, the action taken by a control station whereby messages addressed to an inoperative station are accepted and stored at the control station until they can be sent to the destination station. the control station may be a computer in a message switching system
在遠程通信系統中,當報文發往的工作站處于不工作狀態時控制站所採取的行動,即接收並存儲該報文直到該工作站恢復工作時,再由控制站將報文送給它。在報文交換系統中,控制站可以是一臺計算機。3. with comprehensive improvement of transponder including structural adjustment to lna ; optimization of ( phase locked loop ) pll filter ; structural adjustment to the transmitter and phase error adjustment to the intermediate frequency demodulation circuit, we have successfully enhanced sensitivity, expanded dynamic range, increased transmitting power and improved the spectrum purity ; decreased capture time for pll ; improved the signal quality after demodulation ; reduced its volume and power consumption. 4
3 、對通信機的全面改進,包括lna結構的調整、鎖相環環路濾波器的優化、發射部分結構的調整以及中頻解調電路的相差調整,提高了系統的接收靈敏度、改善了本振的頻譜純度、減少了鎖相環的鎖定時間、使中頻解調后的信號質量大為提高,同時還減少了體積、節約了系統的功耗。The first introduced basis concept fundamentals and development of reconnaissance and jam for communication. the second present fundamentals of reconnaissance for communication ; simulink simulation models ; reconnaissance for communication federate design. the models include : simulation models for communication ew panoramic scanning receiver, surveillance analyses receiver, multichannel - fft receiver
本文主要分三部分,首先介紹了通信偵察和通信干擾的基本概念及發展趨勢;第二部分介紹了通信偵察的基本原理、 simulink模擬模型以及通信偵察邦元設計,主要包括全景搜索接收機、通道化接收機;第三部分介紹了通信干擾的基本原理、 simulink模擬模型以及通信干擾邦元設計,結合通信收發邦元、測向邦元,給出了干擾效果。Networking specification for digital microwave communication equipments 2 8ghz digital microwave transceiver
數字微波通信設備進網技術要求2 8ghz數字微波收發信機Minimum standards - citizens band radio service amplitude modulated transceivers operating in the 27 mhz band
最低標準.運行在27mhz波段的民用波段無線電通信業務調幅無線電收發兩用機The dark - skinned, black - haired navajo code talker, huddled over a portable radio or field phone in a regimental, divisional or corps command post, translating a message into navajo as he reads it to his counterpart on the receiving end miles away, has been a familiar sight in the pacific battle zone
那些黃皮膚、黑頭發的納瓦霍族通信兵手提便攜式電臺和步話機隨同團、師、軍級指揮部行動,將指揮部的命令對照著他手頭的「納瓦霍字典」翻譯成納瓦霍語並傳遞到數英里以外的接收方;這已經成為可太平洋戰場上司空見慣的場景。Wireless mobile ad hoc network is composed of mobile terminal nodes with wireless communication device, and typically characterized by its temporariness, multi - hop and no - center. it has an infrastructureless distributed mufti - hop structure ; all nodes have an equal status and act as two roles - router and node itself
無線移動adhoc網路是由一組帶有無線通信收發裝置的移動終端節點組成的一個多跳、臨時、無中心網路,網路中各個節點的地位平等,每個節點都具有主機與路由器的雙重功能,形成了一個以中間主機節點為中繼的、多跳的分散式網路結構。In chapter 5, the complex envelop simulation block diagrams of fh transmitter and receiver are presented at first. then key techniques of simulation system are discussed, including frame processing structure, fh sequence generator, etc. finally, simulation models of fh transmitter, receiver and jammer are presented. the influence of frequency excursion on performance of multi - tone continuous wave jamming is analyzed
第五章首先設計了跳頻發信機成員和接收機成員的復包絡模擬框圖;其次討論了跳頻模擬系統實現的關鍵技術,包括幀處理結構、跳頻序列發生器等;最後給出了跳頻通信發信機、接收機以及干擾機成員的模擬模型,分析了頻率偏移對多頻連續波干擾性能的影響。The c8051f005 micro - processor made by cygnal company is the core of the lead plane, which connects with half - duplax differential transceiver max3471, sigma - delta ad7705. the pressure, altitude and temperature can all be collected and calculate out accurately
主機以cygnal公司的c8051f005單片機為核心,外接串口通信收發器max3471 、 a / d模數轉換器ad7705 ,可以實現壓力、高度、溫度數據的採集和較為準確的輸出,同時還具有低電壓報警等輔助功能。分享友人