Location determination using signals from fewer than four satell

Details Location determination using signals from fewer than four satell Location determination using signals from fewer than four satell

1997-09-30

1999-11-09

Issing, Gregory C.

Data processing: vehicles, navigation, and relative location

Navigation

Employing position determining equipment

G01C 2100

Patent

active

059831596

ABSTRACT:
Method and apparatus for determining the location of a point on a rotating body, using location determination (LD) signals received from as few as one satellite, preferably non-geosynchronous. Where signals from two or more satellites are received, one may be geosynchronous. Pseudoranges are measured from one or more satellites at two or more selected, spaced apart observation times, and the simultaneous rotations of the body and the satellite(s) relative to each other result in different body-satellite constellations for which the initial location coordinates (and, optionally, signal receiver time offset) of the selected point are determined exactly, without approximation or iteration. The selected point may be motionless or may be allowed to move with known coordinate differences between the initial unknown location and the present location at each observation time. Pseudoranges from different satellites, or even from different satellite systems (GPS, GLONASS, LEO, etc.) can be measured and used in this procedure.

REFERENCES:
patent: 5563917 (1996-10-01), Sheynblat
W.H. Guier and G.C. Weiffenbach, "A Satellite Doppler Navigation System," pp. 507-516, Proceedings of the IRE, Apr. 1960.
W.P. Williams, "Marine Satellite Navigation Systems," pp. 50-54, SERT Journal vol. 13, Mar. 1977.
Theodore Wyatt, "The Gestation of Transit as Perceived by One Participant," pp. 32-38, Johns Hopkins APL Technical Digest, vol. 2, No. 1, 1981.
W.F. Blanchard, "The Continuing Development of `Transit`," pp. 189-199, IEE Special Conference on Mobile Communication and Navigation, 1983.
Keith R. Symon, "Mechanics," pp. 110-113, Addison-Wesley, 1953.

Affiliated with

Also associated with

Rating

Location determination using signals from fewer than four satell does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Location determination using signals from fewer than four satell, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Location determination using signals from fewer than four satell will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1469285