Method and receiver using a low earth orbiting satellite signal to augment the global positioning system

摘要: A method and an apparatus using a low Earth orbiting (LEO) satellite signal to augment the Global Positioning System (GPS) for finding location vector between GPS user receiver reference receiver. The computes LEO user-reference carrier phase difference signal, respectively, received simultaneously at Carrier double differences are computed from phases two satellites either or one satellite. is geometries. communicates data through An ionospheric delay model determined by tracking as traverses sky. optional calibrator corrects measurement in determining