Pulogalamu ya Global Positioning System (GPS) ndi zodabwitsa zomwe zimatheka ndi gulu la satellites pa ulendo wa Padziko lapansi kutumiza zizindikiro zenizeni, kulola ovomerezeka GPS kuti aŵerengere ndikuwonetsa malo abwino, mwamsanga ndi nthawi kwa wogwiritsa ntchito.
Pogwira zizindikiro kuchokera ku satellites atatu kapena ambiri (pakati pa magulu a satellite 31 omwe alipo), ovomerezeka GPS akhoza triangulate deta ndikuwonetsa malo anu.
Pogwiritsa ntchito mphamvu zamagetsi ndi deta zomwe zimakumbukiridwa monga mapu a misewu, mfundo zochititsa chidwi, zambiri zapamwamba, GPS olandila amatha kusintha malo, maulendo ndi nthawi kuti apange mawonekedwe abwino.
GPS idapangidwa ndi a United States Department of Defense (DOD) ngati ntchito ya usilikali. Ndondomekoyi yakhala ikugwira ntchito kuyambira kumayambiriro kwa zaka za m'ma 1980 koma idayamba kukhala yothandiza kwa anthu wamba kumapeto kwa zaka za m'ma 1990. Gulu la Ogulitsa tsopano lakhala malonda ambirimbiri a madola mabiliyoni okhala ndi zinthu zambiri, mautumiki, ndi ma intaneti.
GPS imagwira ntchito molondola nyengo zonse, masana kapena usiku, kuzungulira maola ndi kuzungulira dziko lonse lapansi. Palibe malipiro olembetsa kuti agwiritse ntchito zizindikiro za GPS. Zizindikiro za GPS zikhoza kutsekedwa ndi nkhalango zowonongeka, makoma ozungulira, kapena malo osanja, ndipo sizilowetsa malo osungira bwino, kotero malo ena sangalole kuyenda moyenera GPS.
Ovomerezeka GPS amakhala olondola mkati mwa mamita 15, ndipo zatsopano zomwe zimagwiritsa ntchito zizindikiro za Wide Area Augmentation System (WAAS) zili zolondola mkati mwa mamita atatu.
Ngakhale kuti GPS ndi yomwe ikugwiritsidwa ntchito ku US ndiyo njira yokhayo yogwiritsira ntchito, machitidwe ena asanu oyendetsa ma satana omwe akuyendetsedwa ndi satana akukambidwa ndi mayiko osiyanasiyana ndi mayiko osiyanasiyana.
Komanso: GPS