| âûáîðêà | îïèñàíèå |
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ADPCM (ADAPTIVE DIFFERENTIAL PULSE CODE MODULATION - ÀÄÀÏÒÈÂÍÀß ÄÈÔÔÅÐÅÍÖÈÀËÜÍÀß ÈÌÏÓËÜÑÍÎ-ÊÎÄÎÂÀß Ì
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- ñòàíäàðòèçîâàííàÿ ITU ìåòîäèêà êîäèðîâàíèÿ àíàëîãîâîãî ñèãíàëà (ðå÷ü) â öèôðîâóþ ôîðìó ñ ïîëîñîé 32 Êáèò/ñåê (ïîëîâèíà ñòàíäàðòíîé ïîëîñû PCM)....
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PCM (PULSE CODE MODULATION)
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- ñïîñîá êîäèðîâàíèÿ àíàëîãîâîãî ñèãíàëà (íàïðèìåð, ðå÷è) äëÿ ïåðåäà÷è åãî â ôîðìå öèôðîâîãî ïîòîêà ñ ïîëîñîé 64 Kbps....
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MODULATION (ÌÎÄÓËßÖÈß)
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- èçìåíåíèå ïàðàìåòðîâ íåñóùåé â ñîîòâåòñòâèè ñ ïåðåäàâàåìûì ñèãíàëîì. Äëÿ ìîäóëÿöèè îáû÷íî èñïîëüçóåòñÿ àìïëèòóäà, ôàçà èëè ÷àñòîòà ñèãíàëà....
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READ THE SOURCE CODE (RTSC)
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- ÷èòàé èñõîäíûé òåêñò. Ýòî ñîêðàùåíèå èñïîëüçóåòñÿ, êîãäà ðàçðàáîò÷èê ïðîãðàììíîãî îáåñïå÷åíèÿ çàäà¸ò âîïðîñ îòíîñèòåëüíî íåäîêóìåíòèðîâàííîãî êîäà....
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CDMA (CODE DIVISION MULTIPLE ACCESS)
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- ïðîòîêîë Ñè-äè-ýì-ýé ("ìíîãîñòàíöèîííûé äîñòóï ñ êîäîâûì ðàçäåëåíèåì"). Ïðîòîêîë öèôðîâîé ñîòîâîé ñâÿçè ñ ìóëüòèïëåêñèðîâàíèåì, â êîòîðîì ñèãíàë êîäèðóåòñÿ ñ ïîìîùüþ ïñåâäîñëó÷àéíîé ïîñëåäîâàòåëüíîñòè ÷èñåë. Îáåñïå÷èâàåò âûõîä â Èíòåðíåò, ðàáîòó ñ ýëåêòðî...
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ASYMMETRICAL MODULATION
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- àñèììåòðè÷íàÿ ìîäóëÿöèÿ. Äóïëåêñíàÿ ïåðåäà÷à, ïðè êîòîðîé êîììóíèêàöèîííûé êàíàë ðàçáèâàåòñÿ íà îäèí âûñîêîñêîðîñòíîé è îäèí íèçêîñêîðîñòíîé. Ïðèìåíÿåòñÿ ïðè ñâÿçè ÷åðåç ìîäåì. Ìîäåì äèíàìè÷åñêè ïåðåêëþ÷àåò òðàêòû ïðè¸ìà è ïåðåäà÷è íà ñîîòâåòñòâóþùèé êàíà...
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