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Óïðàâëåíèå ÄÏËÀ ÷åðåç ðåòðàíñëÿòîð.
Äëÿ óâåëè÷åíèÿ çîíû, â êîòîðîé ïðîèçâîäèòñÿ óïðàâëåíèå íèçêîëåòÿùèì äèñòàíöèîííî ïèëîòèðóåìûì ëåòàòåëüíûì àïïàðàòîì (ÄÏËÀ) èñïîëüçóþò êîìàíäíóþ ðàäèîëèíèþ ñ ðåòðàíñëÿöèåé ñèãíàëà ÷åðåç ÈÑÇ. ÄÏËÀ ìîæåò ëåòàòü ñî ñêîðîñòüþ äî ? [ì/ñ]. Ïðè ìàíåâðàõ îòêëîíåíèÿ îñåé ÄÏËÀ ìîæåò äîñòèãàòü +/-10°
íà âðåìÿ äî 5 ñåê.
Ïàðàìåòðû îðáèòû ÈÑÇ-ðåòðàíñëÿòîðà:
- âûñîòà â àïîãåå ? [ì];
- âûñîòà â ïåðèãåå ? [ì];
- íàêëîíåíèå ê ïëîñêîñòè ýêâàòîðà ? [ãðàä];
Ðàäèîëèíèÿ óïðàâëåíèÿ èñïîëüçóåòñÿ ïðè íàõîæäåíèè ÈÑÇ â îêðåñòíîñòè ïåðèãåÿ. Äëèòåëüíîñòü ñåàíñà ïåðåäà÷è êîìàíä ? [ñåê]. Êîìàíäû - ñëó÷àéíûå âåëè÷èíû, ïðèíèìàþùèå ñ ðàâíîé âåðîÿòíîñòüþ ? ðàçëè÷íûõ çíà÷åíèé, âñåãî çà ñåàíñ ìîæåò áûòü ïåðåäàíî äî ? êîìàíä, àäðåñîâàííûõ 8 óñòðîéñòâàì è àãðåãàòàì íà áîðòó ÄÏËÀ. Âåðîÿòíîñòü ïðîïóñêà êîìàíäû äîëæíà áûòü íå áîëåå ?.
Ðàäèîëèíèÿ ðàáîòàåò íà âîëíå ? [ì]. Âîçìîæíàÿ íåñòàáèëüíîñòü ãåòåðîäèíà ïðèåìíèêà ÄÏËÀ ?. Íåñòàáèëüíîñòü çàäàþùåãî ãåíåðàòîðà íà áîðòó ÈÑÇ-ðåòðàíñëÿòîðà ñóùåñòâåííî ìåíüøå. Áîðòîâàÿ àíòåííà ÈÑÇ èìååò êîýôôèöèåíò óñèëåíèÿ ? . Àíòåííà ÄÏËÀ íàïðàâëåííàÿ ñ øèðèíîé äèàãðàììû ? [ãðàä] è óðîâíåì áîêîâûõ ëåïåñòêîâ ? [äÁ].
Íà âõîäå ïðèåìíèêîâ ÄÏËÀ, äåéñòâóåò åñòåñòâåííûé øóì, ñîîòâåòñòâóþùèé ýêâèâàëåíòíîé øóìîâîé òåìïåðàòóðå ? [ãðàä] è áåñêîíå÷íàÿ îðãàíèçîâàííàÿ óçêîïîëîñíàÿ øóìîâàÿ ïîìåõà ìîùíîñòüþ ? [Âò] ñ ïîëîñîé ?. Êðîìå òîãî ïðèíèìàåìûé ñèãíàë çàìèðàåò èç-çà èçìåíåíèÿ îðèåíòàöèè ïðèåìíîé àíòåííû ïðè ìàíåâðàõ ÄÏËÀ.
Äëÿ ïåðåäà÷è êîìàíä ðåòðàíñëÿòîð èñïîëüçóåò ñèãíàë ÊÈÌ-×Ì. Êîäèðîâàíèå - îðòîãîíàëüíûì êîäîì.
Ïðè ïðîåêòèðîâàíèè ðàäèîñèñòåìû óïðàâëåíèÿ ÄÏËÀ ÷åðåç ÈÑÇ-ðåòðàíñëÿòîð òðåáóåòñÿ:
- âûáðàòü äëèòåëüíîñòü ñèìâîëà ÊÈÌ;
- âûáðàòü ìîùíîñòü ïåðåäàò÷èêà ñèãíàëà;
- âûáðàòü çíà÷åíèÿ ÷àñòîò, íà êîòîðûõ ïåðåäàþòñÿ ïðîòèâîïîëîæíûå ñèìâîëû;
- îöåíèòü ðàñõîä ïîëîñû íà ïåðåäà÷ó îäíîé äâîè÷íîé åäèíèöû èíôîðìàöèè;
- âûáðàòü ñòðóêòóðó è ïàðàìåòðû áîðòîâîãî ïðèåìíîãî óñòðîéñòâà ÄÏËÀ;
Óñòàíîâèòü òðåáîâàíèÿ ÒÇ íà ðàçðàáîòêó ïîäñèñòåìû ñèìâîëüíîé ñèíõðîíèçàöèè:
- äîïóñòèìîå îòêëîíåíèå ìåòêè ñèìâîëüíîé ñèíõðîíèçàöèè îòíîñèòåëüíî íîìèíàëüíîãî ïîëîæåíèÿ;
- âåëè÷èíó ïîñòîÿííîé âðåìåíè ñèñòåìû ñèìâîëüíîé ñèíõðîíèçàöèè;
- âåëè÷èíó ïîðîãà ñðûâà ñëåæåíèÿ;
Óñòàíîâèòü òðåáîâàíèÿ ÒÇ íà ðàçðàáîòêó ïîäñèñòåìû ÀÐÓ:
- íàéòè âåëè÷èíó äîïóñòèìîé ñòàòè÷åñêîé îøèáêè è çàäåðæêè.??????
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