視影通信 的英文怎麼說
中文拼音 [shìyǐngtōngxìn]
視影通信
英文
line of sight communication-
It has reported that the amygdaloid complex exerts ianuence on the medial geniculate body and the auditory cortex. not only the light evoked response of latera geniculate cells can be modulated by the amygdaloid complex, but also their receptive field characterstics. the pathway of this modulating innuence is amygdala isual cortexateral geniculate
已有的工作表明,杏仁復合體可對內膝體和聽皮層聽覺信息產生影響作用,在視覺上,杏仁復合體不僅對兔外膝體神經元閃光刺激反應活動產生抑制和易化影響,而且對外膝體神經元的感受野特性具有調製作用,這種作用是通過杏仁-視皮層-外膝體途徑而實現。The abc, cbs and nbc nightly newscasts don ' t have nearly the influence, or the viewership, they did before viewers could get news instantly on their pagers, telephones or cable tv
Nbc晚間新聞廣播幾乎未曾受到影響,而在電視觀看者可以通過人員、電話、有線電視快捷的獲取信息之前,收視群必然會受到影響。After 19th century, the technology such as photograph, films, telegraph, telephone, broadcast, television came out early or late. since middle period of 20th century, the technology of computer, network and telecommunication which based on micro - electronics & telesthesia promote the development of modern information technology, and bring the important reform in education
人類進入十九世紀以後,攝影技術、電影技術、電報、電話、廣播、電視等技術先後相繼問世,二十世紀中葉以來,以微電子技術與傳感技術為基礎的計算機、網路及通訊技術推動了現代信息技術的發展,升由此引起了教育領域的重要變革。The key technology which affect the tv news communication consist of cable televisual technology, satellite technology, computer technology and digital technolo - gy
科技環境重點闡述影響電視新聞傳播的四大技術:有線電視技術、衛星通信技術、計算機技術、數字化技術。Again, small dc shifts in the black level caused by residual sync can disturb the color balance or gains of the video channels
同樣,由於殘留的同步信號而導致的黑電平上很小的直流偏移依然能夠影響顏色的平衡和各個視頻通道的增益。The eleventh design research institute of it co., ltd edri for short is a general class a design institute which major business is engineering design, engineering consultation, construction supervision and lump - sum contract project, and also extend its business to the product development, production, installation and service of serial air - condition. edri is a holding company of china information industry corporation which holds class a design licenses of electronic project of electronic communication broadcast television industry, construction project of construction industry, pharmaceutical project of chemical industry and petrochemical industry, public facility environmental sanitary, military industry optics, photoelectric and electronic project and class a business licenses of property estimate consultation lump - sum project, project supervision, environmental estimate, class a design license of electronic communication broadcast television industry communication project wireless communication, communication tower, broadcast television project, chemical petrochemical pharmaceutical industry, agricultural forestry industry stockbreeding vaccine product factory, and machine, light textile textile, electronic appliances and machine, public facility water supply, drainage, scenery garden
Edri以工程設計咨詢監理總承包為主業,兼營凈化空調系列產品開發生產安裝和服務的綜合性甲級設計院,是中國信息產業集團公司的控股企業,擁有國家頒發的電子通信廣電行業電子工程類建築行業建築工程化工石化醫藥行業軍工行業光學光電電子工程甲級設計證書和工程造價咨詢工程總承包工程監理環境影響評價甲級證書以及電子通信廣電行業通信工程類無線通信通信鐵塔廣電類廣播電視發射產品項目農林行業畜牧工程疫苗製品廠機械行業輕紡行業紡織家用電器及日用機械市政公用行業給水排水風景園林乙級設計證書。Line of sight communication
視影通信The effects of meteor trails scattering on a back scattering beyond - light - of - sight radar detected distance and probability of detection are creatively calculated in theory. it is practicable worth for analyzing the performance of the electronic systems
本文第一次從理論上研究了流星余跡散射對電子系統性能影響,這些結果對研究突發通信系統和超視距雷達系統等電子系統的性能都有一定實用價值。An introduction of sony china professional solutions business : as the international leading broadcasting & professional system solutions provider, sony corp. has successfully developed various kinds of tailor - made system solutions such as hd and sd systems for tv and film production, media asset management system, video server system, professional display products, video conference system, network monitor and audio equipments, some of which are broadband capable system solutions
索尼廣播電視及專業業務自1978年進入中國,目前其針對中國各行業專業領域客戶的包括高清及標清電影電視節目製作系統、媒體資產管理系統、專業顯示設備、視頻通訊、網路監控和數字展示等系統解決方案,已被廣泛應用於包括節目製作、網路通信、政府機構、工礦企業、醫療和教育等各行各業。Liquid crystal tunable filters as an important device of wavelength division multiplexing and dense wavelength division multiplexing systems is caused attention by research department, especially many foreign research institute are studying it. but in our country its study is lag. and normal incidence of the crystal is almost the case, because the liquid crystal box is very thin, the field angle may be large and the pose of liquid crystal box may have impact on the measuring result. so, study in such subject, especially the liquid crystal box ' s position angle, is academic and valuable
各種改進液晶電光可調諧濾光片的措施的實現,使得液晶調諧濾光片成為一種很有應用前景的電光調諧濾光片,特別是用於光纖通信中的波分復用系統和密集波分復用系統,將使光纖的傳輸客量大大增加目前國外在這方面的研究進展很快,而國內在這方面的研究比較薄弱,而且通常採用光線正人射晶體進行研究,由於液晶盒很薄,視場角可以很大,液晶盒的擺放對測量結果影響很大,因此對該器件進行深入的研究,討論液晶盒的方位角影響是很有必要的。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。Research of error resilience technology for video communication based on h. 263 codec major : signal and information processing data : author : meng yan signature : tutor : zhang erhu liu shichang signature : abstract the reconstructed image quality can be degraded substantially by errors during the transmitting over the communication channel, especially when the video is compressed by temporal and spatial coding ways, which leads to error propagation in frame sequence, so the error resilience procedure should be performed to improve the reconstruction quality
由於通信系統的通道不可避免的存在噪聲,傳輸數據流必然存在誤碼。對于h . 26x的視頻編碼流,由於空域和時域的壓縮方法以及熵編碼方法的應用,即使是一個比特的錯誤,常會影響一個區域的圖像不能正確解碼,同時錯誤的圖像還會擴散影響后續數幀圖像。因此有必要在標準解碼程序的基礎上,添加容錯功能。Loss of information during transmission of compressed video over error prone networks may lead to objectionable visual distortion in the decoded video, and such distortion can propagate to many frames because of the motion compensated prediction and the variable - length coding used
採用運動補償預測及可變長編碼的壓縮視頻數據,在極易發生干擾的網路環境中傳輸時,通道傳輸差錯對壓縮編碼圖像質量影響很大,有時甚至會導致整個視頻通信完全失效。Because of radio wave propagating along the ducts with enhanced fields on the order of the free - space field, the problems of the co - channel interference are more complicate for communication systems with the results of intersystem interference and the formation of other system, and therefore affecting the determination of the coordination distances or the optimization of the distribution and separation of delay, and for surveillance system such as radar system the problems can be radar holes or the extensions of detect range
對于通信電路,它使系統間的相互干擾問題變得復雜,既可能幹擾其他系統又可能形成另外的系統,從而影響系統的有關參數如中繼電路的最佳組合(分佈、間隔)和協調距離,對于探測系統產生的則是雷達空洞、超視距探測等問題。這些問題對相關無線電系統特別是軍事應用系統可能是致命的,因而以波導傳播為代表的反常傳播特性研究受到極大重視。The combination of cablemodem and hfc is a way to revamp the catv network to a hybrid videodata communications network. however, hfc uses sub - carrier fdm, which requires ad conversion before transmission. in that sense, the transmission quality will be compromised
雖然cablemodem與hfc配合,是將catv網改造成為視頻、數據混合通信網的一種可能選擇,但hfc採用副載波頻分復用方式,必須進行數模轉換才能傳輸,所以傳輸質量將受到影響。The main points are as follows : first, current video applications are classified by their communication modes, the network parameters are discussed in detail which affect the quality of video communications and the performance of typical networks are described
本文主要內容如下:第一:比較了不同視頻業務的通信模式,並結合目前典型的通信網路,詳細分析了影響視頻通信服務質量的網路性能參數。The destination of video compression is to improve the video quality in the given bitrate. the main topic of video communication is communication protocol, and the difficulty is how to avoid and reduce the communication errors and decrease the effect of these errors
視頻壓縮的目的是在一定碼率下,盡量減少視頻降質;視頻通信技術主要包括傳輸協議等,重點是如何克服和減小通信錯誤對重建視頻的影響。In 3g communication system, the most promising location method was the locating arithmetic based on the time of arrival and the time difference of arrival ( toa / tdoa ) of signal, or the angle of arrival of signal ( aoa ). however, either the arithmetic based on toa or that based on aoa was badly affected by the none line of sight ( nlos ) phenomenon
在第三代移動通信系統中,最有前景的定位方式是基於信號到來時間/時間差( toa / tdoa )或信號到來角( aoa )的定位演算法。但不管是基於信號到來時間的演算法還是基於信號到來角度的演算法,定位信號的非視距傳播效應( nlos )都會對其造成嚴重的影響,在影響移動定位精度的諸多因素中nlos效應被公認為是最主要的因素。It does n ' t require pre - analysis and multi - pass coding, and can achieve a constant video quality. thirdly, in video communication system, transmission errors and packet losses are inevitable due to channels noise and network congestion
最後,在視頻通信系統中,由於傳輸通道中噪聲或網路中擁塞影響,傳輸差錯和數據包丟失是不可避免的。The application of video is inevitable trend, along with the fast and fierce development of multimedia, network technique and mobile communication. wether in the ip ( internet ) network or in the channel of wireless mobile network, error code or noise of signal and loss of data etc. are always unavoidable, when they are transmited in the critical channel, compressed data likely cause quality decrease of serial of video pictures, even ca n ' t be decoded
隨著多媒體、網路技術及移動通信的迅猛發展,視頻通信應成為了不可阻擋的發展潮流。無論是在ip ( internetprotocol )網路還是無線的移動網路的通道中,信號的誤碼、數據的丟失總是難以避免的。所以當數據、信號在通道苛刻傳輸時,壓縮的視頻數據將必然受到影響,它很可能引起一系列視頻圖像質量的下降,甚至無法解碼。分享友人