遠距發信 的英文怎麼說
中文拼音 [yuǎnjùfāxìn]
遠距發信
英文
distance signaling-
Base on the study of long distance wireless communication channel characteristics, the thesis gives an analysis on the existing problems and proposes a solution : implanting the ofdm technique in communication system modulator
本文從對無線遠距離移動通信通道的特性研究出發，分析了其存在的問題。然後針對問題提出了解決方案? ?採用ofdm技術來設計通信系統的調制器。This project focus on r & d of remote information transfer between some device, especially in the water - quality monitoring system. after learning the architecture of the popular pstn dial - up network. vpn broadband network and gsm wireless network, a new solution for remote communication was proposed. under this idea frame a communication hardware platform and software was developed
本課題主要針對環境水質在線監控系統中的信息傳輸問題，對遠距離設備之間的信息傳輸方式及發展進行了研究，結合目前流行的pstn撥號上網方式、 vpn組網技術和gsm無線數字通訊技術，提出了一種新型的遠程設備之間信息傳輸與互聯的方案，並按照這個思路搭建出系統所需的硬體平臺，設計出實現這個方案的應用程序。In the chapter one, the thesis gives a brief introduction of the long distance wireless communication
第一章給出了無線遠距離通信研究和發展的概況。With the development of high - speed information way and multimedia technology, remote communication of image has been applied in more and more field
隨著信息高速公路及多媒體技術的發展，圖像的遠距離通信已得到越來越多的應用。Remote control construction machinery will be more and more widely used along with development of technique and perfection of function of wireless control system and electro - hydraulic control system. the remote controlled trimming dozer is remotely controlled by signal that is transferred by electromagnetic wave and sent into driver - electro - hydraulic control system
隨著無線電控制系統和電液控制系統的技術發展和功能完善，遙控型工程機械應用范圍將越來越廣泛，遙控型推耙機通過電磁波傳輸控制信號並將控制信號送入驅動執行器?電液比例控制系統以實現遠距離控制。The directional routing protocol ds _ dsr put forward by the author is the improvement of the current protocol dsr, complete routine discovery and maintenance by directional neighbor nodes routing table, source routing and directional steering. the research discovers the application of the directional antenna, compare the omnidirectional antenna can increases the networks " total throughput, obviously reduces the co _ channel interference ( cci ), multiple access interference ( mai ), enlarges the nodes " signal and interference to noise ratio ( sinr ), and because of the high gain of directional antenna can realize the communication with farther distance and less jump, end to end delay can decrease deeply, simultaneously, security of networks can be improved partially, the node energy also can be saved easily by power control
本文提出的定向路由協議ds _ dsr是基於對現有協議dsr的改進下實現的，通過定向鄰節點路由表、定向源路由和定向搜索來完成路由發現與維護。研究發現，定向天線的應用，相比全向天線可明顯提高網路的總的吞吐量，減少通道干擾、多址干擾，提高信干噪比，且由於定向天線的高增益可實現較遠距離、較少跳數的通信，減少了路由發現時間，這樣大大減小了傳輸時延，網路的整體性能得到了不同程度的提高，同時部分地解決安全問題，通過功率控制還可較容易的實現節能的目的。At the beginning of the twentieth century, there were four powerful means of transmitting and receiving information over long distances : print, photography, telegraph and telephone
在20世界初，遠距離發出和接收信息的有效手段有四種：印刷、照像、電報和電話。Long distance vhp wireless communication transmission requires only moderate transmission power and reasonable equipment cost, also the channel is very difficult to be destroyed
利用超短波進行無線遠距離移動通信傳輸時，僅需要不大的發射功率和適中的設備費用。且其通信線路不易被摧毀。With the development of radar technology, one of the obvious features of radar is the improved resolution. the imaging radar is a type of high - resolution radar, which is based on the technology of broadband microwave and advanced signal processing. by use of the imaging radar, which has broad applications and has become the focus of the field, the target can be imaged hi all weathers and at anytime from far distance
隨著雷達技術的發展，現代雷達的最顯著特點之一就是對目標的分辨能力的提高，以寬帶微波技術和先進的信號處理技術為基礎的成像雷達，它作為一種高解析度的雷達，能夠對觀測對象進行全天候、全天時、遠距離的成像，有著廣泛的應用前景，成為研究的熱點。The designed base - station and substation ( dolly controler ) both have infrared interface which can beam and receive infrared signal. by accreting the beaming power, one base - station can control 64 set of substations at mostthe base - station and master pc computer is connected with rs - 485 interface, this fullfils the demand of long - distance and high - speed commnication
通過增大發射功率，一臺基站最多可控制64臺從站。基站與上位pc機之間採用rs - 485介面進行通信，可以滿足遠距離高速通信的要求。Telecommuting office workers have the opportunity to fan out to the beauty spots of all the continents from where they teleconference to swap news and views and conduct their business through computer terminals
遠距離工作的辦公室職員有機會通過電腦終端從他們新聞發布與商務磋商的地方把信息散布到各大洲的風景點去。At the mean time, the building of the system is the fastest and the best convenience. the scdma making use of radio connection technology of scdma have advantage of high radio frequency ratio, good secrecy and long distance of transport under lower transmitter frequency
Scdma無線接入通信系統採用同步碼分多址（ scdma ）無線接入技術，具有無線頻譜利用率高、通信保密性好和低發射功率下較遠的通信距離等技術優勢，是一種優秀的無線接入通信技術。Since sound is the only effective information carrier for medium or long distance wireless communication in sea water, underwater acoustic ( uwa ) communication plays an important role in national defense and in the development of marine economy
由於聲波是目前海中實現中、遠距離無線通信唯一有效的信息載體，因此水聲通信對于國防的保障和海洋經濟的發展都有著極其深遠的意義。With the development of information technology which typically includes micro - electronics technology, computer technology and network communications technology, new military revolution is being stimulated. future war will be a fire - new information war, which based on information dominance and charactered with high - transparent war field, whose main campaign pattern is far distance, out of defence area, globally accurate strikes
以微電子技術、計算機技術、網路通信技術為代表的信息技術的發展促進了新軍事革命的爆發，未來的戰爭將是以信息優勢為基礎，以戰場高度透明化為顯著特徵，以遠距離、防區外、全球化精確打擊為主要作戰模式的全新的信息化戰爭。It was found that, for chosen bioaerosol generation parameters and weather conditions, the new personal sampler would be capable to reliably detect pathogens at all locations occupied by crowd, even at distances of up to 600 m from the source
結果發現，以選定的生物氣膠產生參數及氣候條件，此新個人采樣器能在群眾聚集的所有位置，可被信賴地偵測出致病菌，甚至距發生源達600公尺遠亦可。Especially in military affairs, it is the vital part in military operations. short - wave communication is attractive because only little power and proper expenditure is needed when it is used for long distance communication. for this valuable trait, many country have expanded the area of short - wave communication ’ s research, thus there has become more and more new - model communication system
短波通信之所以能吸引用戶用它傳遞信息，最基本的原因是由於進行遠距離通信時，僅需要不大的發射功率和適中的設備費用，這一寶貴的優點，使得世界各國近年來加緊了短波通信的研究，出現了各種新型的短波通信系統。Along with the ongoing development of computer network communication and progressive maturity of multimedia technology, the typical application of multimedia technology like video conference, multimedia e - mail, multimedia monitering, remote medical treatment and long distance teaching will have become more and more widely
隨著計算機網路通信的不斷發展和多媒體技術的日益成熟，類似與視訊會議、多媒體電子郵件、多媒體監控、遠程醫療、遠距離教學等多媒體技術的典型應用將變的越來越廣泛。In transmit channel, power amplifier make the signal level more high in order to make electromagnetic wave transmit long distance
發射鏈路中，功率放大器對已調制信號進行功率放大，以保證更遠的通信距離。Development of information transmission technology lays important foundation of pacs technology. high speed and cheap wide band web make it possible to transmit a mass of medical image in long distance
隨著信息傳輸技術的不斷發展，院間pacs系統的建立具備了良好的物質基礎，相對高速和廉價的寬帶網技術使醫學圖象海量數據的遠距離傳輸成為可能。The author bring forward the devise scheme to design the new type reader based on the ti s6700 reader ic while getting full understanding of the relevant theories and fundamentals about the rfid system, thus to realize the data collection, storage, display and transmission across a long way and enhance the reading distance through adding power amplifier and improving the antenna design
本文作者在對rfid系統的相關理論和技術深入研究的基礎上，提出採用tis6700閱讀器晶元集成化設計新型閱讀器的方案，實現數據採集、存儲、顯示和有效遠距離傳輸，並通過在信號發射埠增加功率放大模塊的方法提高閱讀器的有效閱讀距離。分享友人