Styles of kinematic GPS Kinematic GPS techniques go by a number of names with features that are often receiver specific Kinematic GPS: Early term which implies that there is no loss of lock while the receiver is moving. In survey mode, if loss of ock occurs the antenna must be returned to a point of know ocation Rapid Static GPS: Technique that uses range and phase to resolve ambiguities. No need to maintain lock while receiver \is ping. Surveying where position during static portion all that RTK Real-time kinematic: Kinematic solution with real-time radio telemetry link. Analysis is done on-the-fly. Very popular now with surveyors because results know instar 12540Lec22 General aspects The success of kinematic processing depends on separation of sites The MIT software allows multiple stations to be used in the positioning(may by kinematic or static For separations 10 km, usually easy(most RTK systems work at these distances) 10>100 km more difficult but often successful Depends on quality of data and ionospheric activity >100 km very mixed results05/07/03 12.540 Lec 22 3 Styles of kinematic GPS • Kinematic GPS techniques go by a number of names with features that are often receiver specific. of lock while the receiver is moving. In survey mode, if loss of lock occurs the antenna must be returned to a point of known location. resolve ambiguities. No need to maintain lock while receiver moving. Surveying where position during static portion all that is needed. radio telemetry link. Analysis is done on-the-fly. Very popular now with surveyors because results know instantly. – Kinematic GPS: Early term which implies that there is no loss – Rapid Static GPS: Technique that uses range and phase to – RTK Real-time kinematic: Kinematic solution with real-time 05/07/03 12.540 Lec 22 4 General aspects • The success of kinematic processing depends on separation of sites • The MIT software allows multiple stations to be used in the positioning (may by kinematic or static) • For separations < 10 km, usually easy (most RTK systems work at these distances). • 10>100 km more difficult but often successful. Depends on quality of data and ionospheric activity. • >100 km very mixed results 2