New Mexico Tech
Earth and Environmental Science

ERTH 471 / GEOP 572 - Geodetic Methods

1. GPS

This section focuses on GPS and introduces how it works; signals transmitted; how to get positions, velocities, and time; error sources and mitigation strategies; and how to exploit potential error sources as your signal.

Lectures

Lecture 03: GPS History, Architecture, Signal Structure
Lecture 04: GPS Signal Structure, Coordinate Systems
Lecture 05: GPS Pseudorange Measurement Models, Taylor Series
Lecture 06: GPS Position Estimation
Lecture 07: GPS Carrier Phase Measurement
Lecture 08: GPS Ambiguity Resolution / Error Treatment
Lecture 09: GPS Error Treatment / Kinematic GPS
Lecture 10: Esoteric GPS (SNR, phase delays)
Lecture 11: Live GPS Processing with gd2p.pl

LABS

Lab 02: Coordinate Conversions
Lab 03: Pseudorange Position Estimation
Lab 04: gd2p.pl: static positioning
Lab 05: gd2p.pl: static positioning 2
Lab 06: gd2p.pl: kinematic positioning - Gorkha Earthquake

Homework

Homework 01: GPS Summary

Reference Materials

I rely heavily on these books:

• Global Positioning System: Signals, Measurements, and Performance Revised Second Edition (2011) by Pratap Misra and Per Enge; This is definitely the main reference! The authors explain all aspects in great clarity!
• Algorithms for Global Positioning by Gilbert Strang and Kai Borre
• Global Positioning System: Theory and Practice by Bernhard Hofmann-Wellenhof, H. Lichtenegger and J. Collins, I got the 2nd edition (1993) of this book only, I guess I am old. I haven't looked at the differences to the 5th edition (2001)