Passive ranging through global positioning system

Details Passive ranging through global positioning system Passive ranging through global positioning system

1992-05-06

1993-02-16

Hellner, Mark

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

Directive

Including a satellite

342126, G01S 502

Patent

active

051874857

ABSTRACT:
To passively measure the range to a target, GPS signals which are scattered by the target are used to determine the distance from the target to an observation station whose position P.sub.o is determined by a GPS technique. If the delay time from the reflected signal of the target can be measured, the position P.sub.t of the target can be calculated. Four simultaneous nonlinear equations from the four satellites can be written as

REFERENCES:
patent: 3889266 (1975-06-01), Bartram
patent: 4797677 (1989-01-01), MacDoran et al.
patent: 4806936 (1989-02-01), Williams et al.
patent: 4870422 (1989-09-01), Counselmann, III
patent: 4894662 (1990-01-01), Counselman
patent: 5043736 (1991-08-01), Darnell et al.
patent: 5097264 (1992-03-01), Takayama et al.
Robert J. Milliken and Curt J. Zoller, Rockwell Int'l Corp. Space Div. Title, Principle of Operation of Navstar & System Characteristics Principles & Operational Aspects of Precision Position Determination Systems, Advisory Group for Aerospace Research & Development, pp. 4-1 to 4-12, Jul. 1979.
J. J. Spilker, Jr. "Global Pos. Sys.: Signal Structure & Perfm. Char." pp. 5-1 to 5-35.

Affiliated with

Also associated with

Rating

Passive ranging through global positioning system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Passive ranging through global positioning system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Passive ranging through global positioning system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2150654