Satellite positioning reference system and method
First Claim
1. A method of processing satellite position information in a satellite positioning system (SPS), said method comprising:
- receiving at a first digital processing system a first satellite ephemeris data from a first SPS receiver having a first known position;
receiving at said first digital processing system a second satellite ephemeris data from a second SPS receiver having a second known position;
receiving at said first digital processing system a plurality of pseudorange data from a mobile SPS receiver;
calculating a position information of said mobile SPS receiver using said plurality of pseudorange data and at least one of said first satellite ephemeris data and said second satellite ephemeris data.
0 Assignments
0 Petitions
Accused Products
Abstract
Methods and apparatuses which use satellite position system (SPS) reference receivers. In one example of the invention, a plurality of SPS reference receivers, such as Global Positioning System (GPS) reference receivers, each having a known position, are dispersed over a geographical region. Each of the SPS reference receivers transmits into a communication network, a representation of at least a portion of a satellite navigation message, such as satellite ephemeris data, received from SPS satellites in view of the particular SPS reference receiver. A plurality of digital processing systems, such as a first and a second digital processing systems, are coupled to the communication network to receive the satellite ephemeris data which is transmitted through the communication network.
-
Citations
52 Claims
-
1. A method of processing satellite position information in a satellite positioning system (SPS), said method comprising:
-
receiving at a first digital processing system a first satellite ephemeris data from a first SPS receiver having a first known position;
receiving at said first digital processing system a second satellite ephemeris data from a second SPS receiver having a second known position;
receiving at said first digital processing system a plurality of pseudorange data from a mobile SPS receiver;
calculating a position information of said mobile SPS receiver using said plurality of pseudorange data and at least one of said first satellite ephemeris data and said second satellite ephemeris data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
-
-
20. A system for processing satellite position information, said system comprising:
-
a plurality of satellite positioning system (SPS) reference receivers, each having a known position, said plurality of SPS reference receivers being dispersed over a geographical region, each of said plurality of SPS reference receivers transmitting, into a communication network, satellite ephemeris data received from satellites in view of each of said plurality of SPS reference receivers;
a plurality of digital processing systems, each coupled to said communication network to receive satellite ephemeris data transmitted through said communication network, said plurality of digital processing systems comprising a first digital processing system and a second digital processing system, said first digital processing system receiving a first plurality of pseudorange data from a first mobile SPS receiver and calculating a first position information of said first mobile SPS receiver from said first plurality of pseudorange data and from satellite ephemeris data received from said communication network, and said second digital processing system receiving a second plurality of pseudorange data from a second mobile SPS receiver and calculating a second position information of said second mobile SPS receiver from said second plurality of pseudorange data and from satellite ephemeris data received from said communication network. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29)
-
-
30. A computer readable storage medium containing executable computer program instructions which when executed cause a first digital processing system to perform a method comprising:
-
receiving at said first digital processing system a first satellite ephemeris data from a first satellite positioning system (SPS) receiver having a first known position;
receiving at said first digital processing system a second satellite ephemeris data from a second SPS receiver having a second known position;
receiving at said first digital processing system a plurality of pseudorange data from a mobile SPS receiver;
calculating a position information of said mobile SPS receiver using said plurality of pseudorange data and at least one of said first satellite ephemeris data and said second satellite ephemeris data. - View Dependent Claims (31, 32, 33, 34, 35, 37, 38, 39, 40, 51, 52)
-
-
36. A system for processing satellite position information, said system comprising:
-
a communication medium;
a first satellite positioning system (SPS) reference receiver having a first known position and having a first communication interface which is coupled to said communication medium, said first SPS reference receiver transmitting a first satellite ephemeris data into said communication medium;
a second SPS reference receiver having a second known position and having a second communication interface which is coupled to said communication medium, said second SPS reference receiver transmitting a second satellite ephemeris data into said communication medium; and
a first digital processing system coupled to said communication medium to receive at least one of said first satellite ephemeris data and said second satellite ephemeris data and to provide satellite information for a mobile SPS receiver in order to determine a navigation solution of a position information for said mobile SPS receiver.
-
-
41. A system for processing satellite position information, said system comprising:
-
a communication medium;
a first satellite positioning system (SPS) reference receiver having a first known position and having a first communication interface which is coupled to said communication medium, said first SPS reference receiver transmitting first packets of a first satellite ephemeris data into said communication medium, each of said first packets having less than a subframe of satellite ephemeris data;
a second SPS reference receiver having a second known position and having a second communication interface which is coupled to said communication medium, said second SPS reference receiver transmitting second packets of a second satellite ephemeris data into said communication medium, each of said second packets having less than a subframe of satellite ephemeris data. - View Dependent Claims (42, 43, 44, 45, 47, 48, 49, 50)
-
-
46. A system for processing satellite position information, said system comprising:
-
a communication medium;
a first satellite positioning system (SPS) reference receiver having a first known position and having a first communication interface which is coupled to said communication medium, said first SPS reference receiver transmitting first packets of a first satellite ephemeris data into said communication medium, each of said first packets having less than a subframe of satellite ephemeris data such that said first packets are transmitted into said communication medium at a high packets per second rate.
-
Specification