analog communications 中文意思是什麼
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Adsl is a new modem technology ( the bandwidth is from 25. 875k to l. lmhz ) that converts existing copper telephone lines into access paths for multimedia and high speed data communications, and maintains the regular telephone voice services. adsl provides data rates that expand the best existing access capacity ( isdn ) by a factor of 60 or more, and the best existing common analog access capacity ( v. 34 modems ) by a factor of 300, without requiring any new cabling
它具有傳統模擬modem和isdn無可比擬的速率優越性，其接入速率是isdn的60倍，是現有模擬modem （ v . 34 ）速率的300倍，最大8mbps的下行傳輸速率和最大1mbps的上行傳輸速率，其原因是因為它使用了超過了傳統modem的頻帶范圍（ 25 . 875k到1 . 1mhz的頻帶） ，採用了先進的編碼和調制解調技術。 -
These projects have ranged from analog rf communications ic design in the field of mobile telephony, mobile handset, cordless and wll solutions, production ready design of measurement instruments and complete design and implementation of a factory monitoring system with remote access
具體涉及移動電話所使用的模擬射頻通信集成電路設計，手機、無繩電話及無線本地環解決方案，可即刻付諸生產的測量儀器設計以方案以及完整的工廠遠程監控系統設計與應用解決方案。 -
Responsible for controls design for customer automotive test equipment, including high voltage control panel design and layout, analog and digital circuit design, and communications under the guidance of senior engineers
在高級工程師的指導下，負責對定製的汽車試測設備進行控制設計，包括高和低電壓的控制板進行設計和布局，模擬式和數字電路設計和通信。 -
Analog temperature compensation crystal oscillator ( atcxo ) is widely used in electronic equipments such as communications, navigation, radar, mobile telephone, program control telephone, measure instruments etc. as their reference frequency source, it is critical part of the above equipments, called as their “ heart ”
模擬溫度補償晶體振蕩器（ atcxo ）廣泛應用於通信、導航、雷達、移動通信、程式控制電話、測量儀器等電子設備中。作為基準頻率源，它是上述電子設備的關鍵部件，被稱為此類電子設備的「心臟」 。 -
It is not only the merge of several communications and media transmission methods, but also the realization of the integration of analog and digital communications, hardwares and porotocols
三網合一融合的不僅僅是幾種通信方式和媒體傳播方式的融合，它實現了模擬與數字通信、通信硬體與通信協議的融合。 -
High performance digital - to - analog ( d / a ) converters find applications in the areas of video and wireless communications, such as hdtv and gsm. so, it is useful to make a careful study of high - speed dac
無線通訊和視頻領域，尤其是比較熱門的比如hdtv和gsm ，對高性能高速dac的要求更加迫切，所以針對高速dac的研究是必要的。 -
In the field of traditional power line carrier ( plc ) communications, the modulation - demodulation cells of plc were implemented in means of analog method. the traditional plc systems can ’ t catch up with the market demands for higher communication quality
在傳統的電力線載波通信領域，電力線載波機的調制解調單元都是用模擬器件實現的，這種傳統的載波機已不能完全滿足現有市場對通信質量的要求。
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