NMEA (National Marine Electronics Association) tsis yog GPS system nws tus kheej, tab sis yog cov txheej txheem kev sib txuas lus siv hauv cov khoom siv hluav taws xob hauv hiav txwv los qhia cov ntaub ntawv, suav nrog GPS qhov chaw cov ntaub ntawv.
Cov qauv NMEA txhais txoj hauv kev uas cov khoom siv hluav taws xob sib txawv hauv hiav txwv sib txuas lus nrog ib leeg hauv lub network, thiab suav nrog cov txheej txheem xa thiab txais cov ntaub ntawv ntsig txog GPS, sonar, huab cua, thiab lwm yam ntaub ntawv.
GPS (Global Positioning System), ntawm qhov tod tes, yog satellite-based navigation system uas muab cov ntaub ntawv raug qhov chaw thiab sijhawm rau GPS txais nyob txhua qhov chaw ntawm lossis ze lub ntiaj teb. GPS cov ntaub ntawv tuaj yeem kis tau ntawm cov khoom siv siv NMEA 0183 lossis NMEA 2000 raws tu qauv.
Yog li thaum NMEA cov qauv pab txhawb kev sib kis ntawm GPS qhov chaw cov ntaub ntawv ntawm cov khoom siv, lawv tsis yog GPS lawv tus kheej.
