Kodi CHIYANI?
WAAS ndi chidule cha Wide Area Augmentation System, yomwe ndi njira yabwino kwambiri yonena kuti ndiyo njira yomwe imagwiritsa ntchito malo osungirako malo ochezera malo kuti athetse malingaliro amtundu wa satana, kupititsa patsogolo kayendedwe ka satana ku North America.
Pogwiritsa ntchito ma satana omwe akukonzekera, ogwiritsira ntchito akhoza kuwonjezera kulondola kwa malo, kuika ntchito zosavomerezeka kwa WAAS mkati mwa mapiri a FAA omwe amagwiritsa ntchito njira zamagetsi - makamaka, njira zoyenera zogwirira ntchito.
Kodi Cholakwika ndi GPS Yakale Yakale?
GPS yakale nthawi zonse ndi chithandizo chachikulu choyenda panyanja . Ndipotu, GPS ndizolakwika kwambiri NAVAID pamsika. Komabe, dongosolo, monga machitidwe onse, liri ndi zolephera zake.
Deta ya GPS imakhala yovuta ku zolakwika zosiyana, kuphatikizapo zolakwika za nthawi, kusokonezeka kwa ionosphere ndi ma error a satellite orbit. Zolakwitsa izi sizingayambitse mavuto ochuluka, koma ndi chifukwa chake zizindikiro zakale za GPS siziri zolondola zogwiritsidwa ntchito ndi njira zoyenera zamagetsi.
GPS yeniyeni yokha sichitsatizana ndi zofunikira za FAA zowona molondola ndi zosavuta kuyenda motsatira njira yolondola. Mphamvu za GPS ndi WAAS, komabe, zimaposa miyezo yolondola, zomwe zimapangitsa kuti oyendetsa ndege aziyenda molondola ndi GPS wolandira GPS.
Kodi WAAS amagwira ntchito bwanji?
Malo osokoneza bongo ambiri amagwiritsa ntchito malo 25 okhala pansi pa United States kuti ayang'ane ma satellites. Pali malo awiri Wope Area Master and 23 Wide Area Reference Stations.
Deta yamtunduwu imasonkhanitsidwa ku malo owonetsera ndikutumizidwa ku malo akuluakulu. Ku sitima yapamwamba, deta yanu yakale ya GPS imakula ndikukonzedwanso.
Deta yosinthidwayi imabwereranso ku satellites omwe amatha kupyolera mu siteshoni ya uplink, kumene imatumizidwa kwa ovomerezeka GPS omwe ali ndi WAAS ngati deta.
Kugwiritsira ntchito kwa WAAS
Chinthu chachikulu chomwe chimapindulitsa kwambiri m'dera lonseli ndikulondola kwambiri. GPS yamtundu ndi yolondola mamita 15. Kulondola kwa GPS kwa WAAS kulibe mamita atatu peresenti ya nthawi.
Kuphatikizana ndi kulondola kumabwera kugwiritsa ntchito malo opanga malo ndi njira zowonongeka (LPV) , kupanga mawonekedwe a dziko lonse lapansi bwino kwambiri. Pokhala ndi luso la WAAS, ndege zomwe zingafunikire kuti zithawire kumalo ena osadziwika tsopano zitha kukhala pansi ndi kuchepa kwa nyengo yocheperapo pogwiritsa ntchito njira ya LPV, zomwe zikutanthauza kuchepetsedwa pang'ono ndi kuchepa mtengo.
Kupititsa patsogolo molondola kumapanganso mwayi wochepetsera kuchepa ndi njira zina zolunjika ndege.
Potsirizira pake, ngati WAAS ikugwiritsidwa ntchito pa ndege zambiri padziko lonse, ndalama zambiri zikhoza kupulumutsidwa pa zipangizo zokha. Zida zothandizira maulendo ailesi, monga ILS ndi MLS zimafuna zipangizo zamtengo wapatali komanso kukonza mtengo kwambiri. Ndi njira zatsopano zogwirira ntchito za WAAS, monga njira ya LPV, zipangizo zakale zoyendetsa ndege monga VORs sizidzakhalanso zofunikira kukhazikitsa kapena kusunga.
Monga gawo la pulogalamu ya FAA ya NextGen , njira za LPV zilipo pa ndege zoposa 3,000.