Determination of multipath tracking error

Details Determination of multipath tracking error Determination of multipath tracking error

1996-07-01

1998-10-27

Chin, Stephen

Pulse or digital communications

Repeaters

Testing

375367, 342357, 342450, H04B 1707, H04L 700

Patent

active

058286942

ABSTRACT:
Methods for estimating the tracking error in estimated time of arrival of a composite incoming signal that contains a known, digital, spread spectrum signal S.sub.d (t) and that may contain one or more multipath signals whose source is the known signal. Some methods use linear, quadratic or other approximations for the measured correlation function AC(.tau.) for the early and late regions of the time shift variable .tau. (separated by a punctual value .tau.=t.sub.P). Other methods require only knowledge of the measured correlation function AC(.tau.) for one or two time shift values in the early region .tau.<t.sub.P.

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