Citation
Abstract
As part of a larger effort to validate Global Positioning System (GPS) techniques for global centimeter-level positioning of aircraft using laser ranging, this article reports on a dynamic ground experiment that uses an optical laser ranging system to validate the accuracy of differential carrier phase GPS. The laser is located at the Jet Propulsion Laboratory Optical Communications Telescope Laboratory, Table Mountain, California, and transmitted a 100-Mb/s pseudorandom noise data stream that was retroreflected from a moving truck on an adjacent mountain peak. GPS measurements were collected from two survey-grade commercial receivers: one antenna was located near the laser and the second on the truck. The GPS measurements are processed using a short-baseline, wide-lane, differential carrier phase solution to estimate the relative position of the ground vehicle relative to the static base station. The laser ranging results are compared with the GPS solution. Results show agreement to an average of 4.2 cm (RMS) between the laser and the differential GPS over four different runs.
Keywords
Details
- Volume
- 42-181
- Published
- May 15, 2010
- Pages
- 1–14
- File Size
- 1.1 MB