Multipath calibration in GPS pseudorange measurements

Details Multipath calibration in GPS pseudorange measurements Multipath calibration in GPS pseudorange measurements

1995-09-21

1998-03-10

Issing, Gregory C.

Communications: directive radio wave systems and devices (e.g.,

Directive

Including a satellite

342357, 342378, H04B 7185, G01S 502, G01S 316

Patent

active

057266590

ABSTRACT:
Novel techniques are disclosed for eliminating multipath errors, including mean bias errors, in pseudorange measurements made by conventional global positioning system receivers. By correlating the multipath signals of different satellites at their cross-over points in the sky, multipath mean bias errors are effectively eliminated. By then taking advantage of the geometrical dependence of multipath, a linear combination of spherical harmonics are fit to the satellite multipath data to create a hemispherical model of the multipath. This calibration model can then be used to compensate for multipath in subsequent measurements and thereby obtain GPS positioning to centimeter accuracy.

REFERENCES:
patent: 4669091 (1987-05-01), Nossen
patent: 5347536 (1994-09-01), Meehan
patent: 5450448 (1995-09-01), Sheynblat
patent: 5493588 (1996-02-01), Lennen
patent: 5537121 (1996-07-01), Lennen
Cohen et al "Mitigating Multipath in GPS-Based Attitude Determination" Advances in the Astronautical Sciences, AAS Guidance & Cont. Conf. 1991.

Affiliated with

Also associated with

Rating

Multipath calibration in GPS pseudorange measurements does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Multipath calibration in GPS pseudorange measurements, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multipath calibration in GPS pseudorange measurements will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-142829