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Far multipath occurs when there is a reflecting surface at some distance from the
antenna, such as a building, a mast, a mountain, etc. Metal surfaces cause the
strongest reflections. Far multipath signals can be very nearly eliminated by good
correlator-based multipath mitigation techniques. In an environment where there is a
lot of far multipath, Strobe Correlation will be as good as or better than a choke ring.
The bottom line on multipath mitigation is that the errors, or lack or errors, are seen in
the position accuracy. Test results for the Strobe Correlator are described in van
Diggelen (1996).
Garin, Lionel, van Diggelen, Frank, Rousseau, Jean-Michel ,1996, Strobe & Edge
Correlator Multipath Mitigation for Code, Proceedings of ION-GPS'96, Sept. 17-19
1996, Kansas City, Missouri
van Diggelen, Frank, 1996, The Ashtech GG Family of Products, Proceedings on
ION-GPS'96, Sept. 17-19 1996, Kansas City, Missouri
Multipath Mitigation
C-3
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