Kuyini WAAS?
I-WAAS yisifingqo se-Wide Area Incrementation System, okuyindlela enhle yokusho ukuthi iyisistimu esebenzisa iziteshi ezisemhlabathini ezingasetshenziselwa ukulungisa ukungathandwa kwabathengi nge-satellites, ukuthuthukisa ohlelweni lwesathenjwa esivele luqondile eNyakatho Melika.
Ngamaphutha ase-satellite aqondiswa, abasebenzisi bangandisa ukunemba kwendawo, beka ukusebenza kwe-WAAS ngaphakathi kwemikhakha ye-FAA yokusetshenziswa okuthile kwemikhumbi - ikakhulukazi, izinqubo zokusebenzisa izinsimbi ezicacile.
Yini Engalungile Nge-GPS Yesekudala?
I-GPS endala iyisiza esikhulu sokuhamba . Eqinisweni, i-GPS mhlawumbe iyisiphambeko esikhulu se-NAVAID emakethe. Kodwa uhlelo, njengezinhlelo zonke, lunezinkinga zalo.
Idatha ye-GPS isengozini yamaphutha ambalwa ahlukene, kufaka phakathi amaphutha okufika kwesikhathi, ukuphazanyiswa kusuka kwe-ionosphere kanye namaphutha we-orbit satet. Lezi amaphutha azikwazi ukubangela izinkinga eziningi eziphawulekayo, kodwa yisona isizathu sokuthi amasignali avamile we-GPS angakalungi okusetshenziselwa ukusetshenziswa ngezindlela zokusebenzisa ngokunembile.
I-GPS evamile kuphela ayihlangabezani nezidingo ze-FAA kokubili ukunemba kokuhamba okuqondile nokunqamulayo ukuze kusetshenziswe indlela yokulungisa ngokunemba. I-GPS enekhono le-WAAS, noma kunjalo, lidlula lezo zindinganiso zokunemba, okwenza ukuba abashayeli bezindiza bakwazi ukuhamba ngendlela eqondile ngesamukeli se-GPS esinikezwe amandla we-WAAS.
U-WAAS Usebenza Kanjani?
Uhlelo olubanzi lwe-augmentation area lusebenzisa iziteshi ezingu-25 ezisemhlabathini ngaphesheya kwe-United States ukuqapha ama-satellites. Kuneziteshi ezimbili ze-Wide Area Master kanye nezindawo ezingu-23 zezindawo ezikude zendawo.
Idatha yesathelayithi iqoqwe eziteshini zokubhekisela futhi ithunyelwe esiteshini samakhono. Esikhathini esiteshini samakhosi, leyo datha evamile ye-GPS yanda futhi ilungiswa.
Le datha eguquliwe ibuyiselwa kuma-satellite aqakathekile esiteshini se-uplink, lapho isakazwa khona kumamukeli we-GPS anikwe amandla we-WAAS njengedatha yesimo.
Ukusetshenziswa Okusebenzayo kwe-WAAS
Inzuzo eyinhloko ohlelweni lokunciphisa indawo enkulu luthuthukiswa kakhulu. I-GPS yendabuko inembile kumamitha angu-15. Ukucacisa kwe-GPS kwe-WAAS kungaphansi kwamamitha amathathu angu-95 wesikhathi.
Ngokuhambisana ncamashi kufika ikhono lokusebenzisa ukusebenza kwe- Localizer nge-Guidelines eqondile (LPV) , okwenza uhlelo lwezwe lomoya lukwazi ukusebenza kahle. Ngamakhono we-WAAS, izindiza ezingase zidingeke ukuba zinyane kwenye indawo ekubonisweni okuphansi manje zinamandla okuhlala ngezinga eliphansi lezulu ngokusebenzisa isimo se-LPV, okusho ukulibaziseka okuncane nokunciphisa izindleko jikelele.
Ukunemba okuthuthukisiwe kudala nethuba lokunciphisa okuncane kanye nemigwaqo eqondile yezindiza.
Okokugcina, ne-WAAS isetshenziswa ezindaweni eziningi zezindiza ezweni lonke, imali enkulu ingagcinwa kwizindleko zemishini yedwa. Izinsiza zezokusakaza zomsakazo zendabuko, ezifana ne-ILS kanye neMLS zidinga imishini ebiza kakhulu nokugcinwa kwezindleko ezinkulu. Njengoba izindlela ezintsha zokunemba zikhona nge-WAAS, njenge-LPV, imishini yasendulo ye-VORs ngeke isadingeke ukufaka noma yokulondoloza.
Njengengxenye yohlelo lwe-FAA lwe- NextGen , izindlela ze-LPV zitholakalayo okwamanje ezikhungweni zezindiza ezingaba ngu-3 000.