wireless telephony 中文意思是什麼
wireless telephony
解釋
無線電話學-
In the past few years, there has been significant interest in digital video applications like video conferencing and video e - mailing over internet, video telephony over public switched telephone networks ( pstn ) and wireless networks, etc. by removing spatio - temporal redundancies existing in adjacent frames, motion estimation can reduce the coding bit - rate significantly
低速率視頻編碼技術已在許多領域得到了應用，如在pstn （公共電話網） 、無線網、 n - isdn （窄帶綜合業務數字網） 、 b - isdn （寬帶綜合業務數字網）上傳輸視頻會議、可視電話和無線手持終端等。 -
Today ' s trend toward sending lower - power signals over shorter ranges has occurred previously in wireless communications ? during the early days of radio telephony
在較短距離傳送較低功率的訊號已經成為今天的趨勢，但這種傾向早已見諸先前的無線通訊，也就是早期的無線電話。 -
Software radio have get remarkable development since firstly introduced by jeo mitola in 1992. it has several new characteristic : opening hardware platform, using updateable and reconfigurable application software to realize all kinds of radio function. this type of software radio is expected to be a key technology in several application fields of wireless communications, including cellular telephony, military communications, micro - electronics and etc. the software radio gateway is application of software radio technology in military communication
軟體無線電自1992年jeomitola提出以來，在近幾年取得了引人注目的進展，它的開放性硬體平臺、盡可能地用可升級、可重新配置的應用軟體來實現各種無線電功能的設計新思路，引起了包括個人通信、軍事通信、微電子以及計算機等各個領域的巨大關注，被認為是未來通信技術發展的一個重要方向之一。 -
Future wireless applications, such as video cellular telephony, wireless internet access and wireless lans, have open a new field for wireless multimedia communication - image communication, which push a growing demand for fast, economic, low - energy mobile multimedia communication. however, there are still several bottlenecks - bandwidth, low - delay, power and noise etc, need to be solved
然而由於無線視頻通信存在許多瓶頸與協議問題：包括帶寬要求、實時性要求、功率限制和通道噪聲等，面向無線的視頻編碼與傳輸技術已成為當今信息科學與技術的前沿課題。 -
The impressive growth of cellular mobile telephony as well as the number of internet users promises an exciting potential for a market that combines both innovations : cellular wireless data services
近年來，移動蜂窩技術的高速發展以及因特網用戶的迅速增長預示著新的市場潛力，並由此而發展出新的通訊業務：蜂窩無線數據業務。 -
Time division multiple access : a digital wireless telephony transmission technique
時分多址：一種數字無線電話傳輸技術。
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