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Indima ye-antenna ye-GPS

Izinhlelo ze-GPS ziya ngokuya zisetshenziswa kabanzi ezimpilweni zethu, okuyinto engenakuhlukaniswa nendima ebalulekile yezimpondo ze-GPS.Abakhiqizi be-antenna be-GPS abalandelayo bazokutshela indima ethile yezimpondo ze-GPS.

Okokuqala: Isetshenziselwa ukuthwebula amasathelayithi futhi yamukele ulwazi lokuma kwesathelayithi, okungukuthi, ukukhanyisa nokwamukela amaza kagesi.Noma iyiphi isekethe enemvamisa ephezulu, inqobo nje uma ingavikelwe ngokuphelele, ingakhipha amagagasi kagesi endaweni ezungezile, noma kancane ithole amagagasi kazibuthe avela endaweni ezungezile.Ngokomehluko wama-antenna e-GPS, ingahlukaniswa izimpondo eziyisicaba kanye nezimpondo ezi-helical.I-antenna ye-helical inamandla anamandla okusesha izinkanyezi.

Okwesibili: Guqula i-electromagnetic wave energy yesignali yomsakazo isuka kusathelayithi ibe eyamanje engathathwa yi-electronics eyamukelayo, okungukuthi, ukuguqulwa kwamandla.Ngokuvamile, kumathuluzi akhethekile noma okokusebenza okufakwe emotweni, kuvame ukuba nebanga elithile phakathi kwemishini kanye nemojula yokwamukela i-GPS, ngakho-ke endaweni yangempela, umugqa ophukile ongaphezu kwemitha elingu-1 ungasetshenziswa.Kodwa ngenxa yokuthi i-feeder inokulahlekelwa okuningi kusiginali, kulokhu, kungakhethwa kuphela izinti ze-GPS ezisebenzayo.

Usayizi nokuma kwe-antenna ye-GPS kubaluleke kakhulu.Ngoba lezi zici zinquma ikhono le-antenna lokuthola amasignali e-GPS abuthakathaka.Isiginali yesathelayithi ye-GPS ihlukaniswe i-L1 ne-L2, imvamisa yi-1575.42MHZ kanye ne-1228MHZ ngokulandelana, phakathi kwabo i-L1 iyisignali evulekile yabantu, isignali iyisiyingi polarization.Amandla esignali cishe -166DBM, okuyisignali ebuthakathaka uma kuqhathaniswa.Ngokwezidingo, i-antenna ingaklanywa ukuthi isebenze kumafrikhwensi eyodwa ye-L1, noma kumafrikhwensi amabili, i-L1 ne-L2.


Isikhathi sokuthumela: Dec-13-2021