Multiple Receiver, Zero-Length Baseline Kinematic GPS Positioning Techniques for Airborne Gravity Measurement

  • M. F. Peters
  • J. M. Brozena
  • G. L. Mader
Part of the International Association of Geodesy Symposia book series (IAG SYMPOSIA, volume 110)

Abstract

Despite advances in GPS receiver technology, undetected and uncorrected cycle slips remain a major problem which must be overcome before kinematic GPS interferometric positioning can be routinely used in airborne geophysical investigations. In an airborne scalar gravity survey, it is necessary to know the aircraft’ s geodetic position at a 1 Hz rate, or higher, to determine the vertical acceleration correction. An hour-long track, observing a minimum of four satellites in both the LI and L2 frequencies, yields 288,000 observations which must be checked for cycle slips. It has been suggested that the operation of multiple receivers (Brozena et al., 1989) would increase the likelihood that, for each observation epoch and for each satellite under observation, at least one receiver would maintain lock. Furthermore, if two or more receivers were operated from a single antenna, those observations would be stationary with respect to each other regardless of aircraft motion and could be examined using the double-difference techniques commonly used in static GPS work (Mader et al., 1991).

Keywords

Radar Geophysics Prep Editing 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Brozena, J.M. and Peters, M.F. (1988). An airborne gravity study of eastern North Carolina, Geophysics, Vol. 53, no. 2, 245–253.CrossRefGoogle Scholar
  2. Brozena, J.M., Mader, G.L. and Peters, M.F. (1989). Interferometric Global Positioning System: three-dimensional positioning source for airborne gravimetry, J. Geophys. Res. 94, 12153–12162.CrossRefGoogle Scholar
  3. Brozena, J., LaBrecque, J., Peters, M., Bell, R. and Raymond, C. (1990). Airborne gravity measurement over sea-ice in the western Weddell Sea, Geophys. Res. Letters, 17, 1941–1944.CrossRefGoogle Scholar
  4. Brozena, J.M. (1991). The Greenland Aerogeophysical Project, Proc. IAG Symposia, Vienna, Austria, 1991Google Scholar
  5. Mader, G.L. (1986). Dynamic positioning using GPS carrier phase measurements, Manuscripta Geodaetica 11, 272–277.Google Scholar
  6. Mader, G.L., Schenewerk, M.S. and Chin, M.M. (1990). OMNI 1.00 user’s guide, National Geodetic Survey Report, National Oceanic and Atmospheric Administration, Rockville, MD USA.Google Scholar
  7. Mader, G.L., Crump, D., Brozena, J.M. and Peters, M.F. (1991). Validation of Long-Range Kinematic GPS Positioning (abstract), Eos Trans. AGU, Spring Mtg., 92.Google Scholar
  8. Vaught, D. and Ball, D. (1991). Automated editing of kinematic GPS using a multiple, zero-length baseline technique, in preparationGoogle Scholar

Copyright information

© Springer-Verlag New York, Inc. 1992

Authors and Affiliations

  • M. F. Peters
    • 1
  • J. M. Brozena
    • 1
  • G. L. Mader
    • 2
  1. 1.Naval Research LabUSA
  2. 2.NOAARockvilleUSA

Personalised recommendations