Hybrid approach for antenna baseline self-survey and line bias c

Details Hybrid approach for antenna baseline self-survey and line bias c Hybrid approach for antenna baseline self-survey and line bias c

1997-07-03

2000-05-09

Cuchlinski, Jr., William A.

Data processing: vehicles, navigation, and relative location

Navigation

Employing position determining equipment

701200, 701207, 701215, 342350, 342352, 342450, 342451, 342463, 34235701, 34235704, 34235706, 343757, H04B 700

Patent

active

060616318

ABSTRACT:
Methods for estimation of the relative locations (baseline vectors) of two or more GPS signal antennas relative to each other and for estimation of line biases associated with each signal processing channel associated with each GPS signal antenna. Double difference carrier phase signal measurements are formed, using floating integer and fixed integer solutions for the phase integer ambiguities, and baseline vectors between the GPS signal antennas are estimated. Single difference phase integer ambiguities are obtained and approximations for line biases are computed. Single difference carrier phase measurements are used to estimate baseline vectors and line biases, using fixed phase integer ambiguities with the estimated baseline vectors and line biases as initial conditions, and are processed by Kalman filtering or other suitable signal processing. Angular orientation or attitude of a vehicle body on which the GPS signal antennas are placed is determined from the baseline vectors.

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