GPS Observables Today' s class we start discussing the nature of gs observables and the methods used to make range and phase measurements Start with idea of remotely measuring distances Introduce range measurement systems and concepts used in graphically representing electromagnetic signals Any questions on homework? 02/25/02 12.540Lec0602/25/02 12.540 Lec 06 2 GPS Observables • Today’s class we start discussing the nature of GPS observables and the methods used to make range and phase measurements • Start with idea of remotely measuring distances • Introduce range measurement systems and concepts used in graphically representing electromagnetic signals • Any questions on homework?