Method and apparatus for generating and distributing satellite tracking information in a compact format

a satellite tracking and compact technology, applied in the field of satellite tracking information generation, can solve the problems of inconvenient transmission of satellite tracking information, remote gps receivers that cannot accurately determine position, and inability to accurately transmit satellite tracking information, etc., and achieve the effect of improving the performance of the receiver

USRE48176E1Inactive Publication Date: 2020-08-25AVAGO TECH INT SALES PTE LTD
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Patents(United States)
Current Assignee / Owner
Publication Date
2020-08-25
Estimated Expiration
Not applicable · inactive patent

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Abstract

A method and apparatus for creating and distributing satellite tracking data in a compact format to a remote receiver. At least a portion of the satellite tracking data is extracted from memory and is formatted into a compact format. The compact formatted data is transmitted to the remote receiver via a distribution network. Once this data is received at the remote receiver it is reformatted into a format prescribed by the remote receiver
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Description

CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] This application contains subject matter that is related to a U.S. patent application Ser. No. 09 / 875,809, filed Jun. 6, 2001, which is herein incorporated by reference in its entirety.BACKGROUND OF THE INVENTION

[0002] 1. Field of the Invention

[0003] The present invention generally relates to generating satellite tracking information for earth orbiting satellites. More specifically, the invention relates to a method and apparatus for generating and distributing satellite tracking information in a first format (e.g., a compact ephemeris model) through a network or communications link, then representing the satellite tracking information in a second format (e.g., a standard ephemeris model) at a receiver.

[0004] 2. Description of the Related Art

[0005] A positioning receiver for the Global Positioning System (GPS) uses measurements from several satellites to compute a position. The process of acquiring the GPS radio signal is enhanced in speed an...

Examples

Embodiment Construction

[0017]FIG. 1 depicts a block diagram of a system 100 for creating and distributing satellite tracking data (STD). The satellite system may include the global positioning system (GPS), GLONASS, GALILEO, or other satellite systems that may use STD to enhance the performance of the receiver. The following disclosure uses GPS as an illustrative system within which the invention operates. From the following disclosure, those skilled in the art will be able to practice the invention in conjunction with other satellite based positioning systems.

[0018]A network of GPS tracking stations 102 is used to collect measurement data from the GPS satellites 104. Such a network is described in detail in U.S. patent application Ser. No. 09 / 615,105, filed Jul. 13, 2000 and incorporated herein by reference. The network could comprise several tracking stations that collect satellite tracking information (STI) from all the satellites in the constellation, or a few tracking stations, or a single tracking s...