Leica's Code and Phase Multipath Mitigation Techniques

Ronald R. Hatch, Richard G. Keegan, Thomas A. Stansell

Abstract:	Under normal circumstances Leica does not publish information about new technology developments until products containing every one of these developments are available to our customers. We have made an exception in this case because of the intense interest in multipath mitigation techniques and because we are convinced that Leica has invented a number of multipath mitigation “better mousetraps”. Although this paper does not explain how all of our results are achieved, it does show performance comparisons of several multipath mitigation techniques, including advanced code and carrier phase multipath mitigation techniques, for which patent applications have been filed. The paper also describes another simple but effective technique, recently included in Leica survey products, which reduces code multipath error just as effectively as the most expensive, multiple correlator techniques now being promoted, but without increasing the receiver’s cost or complexity. This technique is important for reference stations, surveys, and other accuracy-critical applications.
Published in:	Proceedings of the 1997 National Technical Meeting of The Institute of Navigation January 14 - 16, 1997 Loews Santa Monica Hotel Santa Monica, CA
Pages:	217 - 225
Cite this article:	Hatch, Ronald R., Keegan, Richard G., Stansell, Thomas A., "Leica's Code and Phase Multipath Mitigation Techniques," Proceedings of the 1997 National Technical Meeting of The Institute of Navigation, Santa Monica, CA, January 1997, pp. 217-225.
Full Paper:	ION Members/Non-Members: 1 Download Credit Sign In