Radio telecommunications system and method with adaptive locatio

Communications: directive radio wave systems and devices (e.g. – Directive – Including a satellite

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

455 541, 379 60, G02S 502, H04B 100, H04M 1100

Patent

active

054444500

ABSTRACT:
A radio telecommunications system includes a number of satellites in low earth orbits. Subscriber units communicate with the satellites. A single subscriber unit communicates with a single satellite using electromagnetic signals so that a measurement processor can obtain Doppler component, propagation duration, and real time measurements of the signals. A location processor converts these measurements into a geographic location with respect to the earth through an iterative process. The location processor determines the accuracy required for each location determination, and performs only the number of iterations needed to meet the accuracy requirements. A service processor determines which qualifications to apply to communication services offered by the system. These qualifications are based on the subscriber unit's location.

REFERENCES:
patent: 4445118 (1984-04-01), Taylor et al.
patent: 4578678 (1986-03-01), Hurd
patent: 4672382 (1987-06-01), Fukuhark et al.
patent: 4728959 (1988-03-01), Maloney et al.
patent: 4797677 (1989-01-01), MacDoran et al.
patent: 4860352 (1989-08-01), Laurence et al.
patent: 5041833 (1991-08-01), Weinberg
patent: 5119101 (1992-06-01), Barnard
patent: 5119504 (1992-06-01), Durboraw, III
patent: 5177489 (1993-01-01), Hatch
"Emitter Location Accuracy using TDOA and Differential Doppler" by Paul C. Chestnut, from IEEE Transactions on Aerospace and Electronic Systems, vol. AES-18, No. 2, Mar., 1982.
"Geolocation of Frequency-Hopping Transmitters via Satellite" by A. Sonnenschein and W. K. Hutchinson, from Technical Reporty 900, Nov. 1990.
"Geolocation via Satellite: A Methodology and Error Analysis" by M. J. Shensa, from Technical Report 1224, May 1988.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Radio telecommunications system and method with adaptive locatio does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Radio telecommunications system and method with adaptive locatio, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Radio telecommunications system and method with adaptive locatio will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2145008

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.