Geodesy with the Global Positioning System

EESC G9945 Section 2

Spring Term 2013

Jim Davis & Meredith Nettles

Wednesdays, 3:15 PM-4:30 PM, SGT Conference Room

Course Outline

Week 1 Introduction: Overview of class; discussion of class project; introduction to the Global Positioning System; brief history; space segment; ground segment; user segment. [notes]
Week 2 Principles of satellite positioning: Description of satellite orbits; transformation to Cartesian satellite coordinates in Earth-centered system; RINEX orbit files. [notes]
Week 3 GPS constellation: Properties of GPS signals; signal codes, carrier frequencies, on-board frequency standard and clock. [notes]
Week 4 GPS observables: Pseudorange observables; carrier-beat phase observables. [notes]
Week 5 Delay of the GPS signal by the atmosphere: Ionosphere-free observables; radio refractivity of the neutral atmosphere; hydrostatic and wet zenith delays; mapping function. [notes]
Week 6 Point positioning using pseudorange: Pseudorange model and code solutions; RINEX data files. [notes]
Week 7 Relative positioning using carrier-beat phase (I): Phase model; phase ambiguity; preprocessing; single, double, and triple-difference observables. [notes]
Week 8 Relative positioning using carrier-beat phase (II): Regional solutions using fixed orbits; orbit integration and orbit parameter estimation. [notes]
Week 9 Terrestrial reference frames: Definition; how GPS is impacted; determination of terrestrial reference frames. [notes]
Week 10 Positioning using stochastic filtering (I): Iterative least squares; stochastic parameters. [notes]
Week 11 Positioning using stochastic filtering (II): Parameter estimation using the Kalman filter. [notes]
Week 12 GPS errors: Multipath; atmosphere; ionosphere; transmitting and receiving antennas [notes]


Information on Term Project

Image: Seth Gutman, NOAA