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

Inactive Publication Date: 2020-08-25
AVAGO TECH INT SALES PTE LTD
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0010]The STD is reformatted into a compact format and provided to a remote satellite signal receiver via a network or communications system. The receiver converts the compact format into a standard format and uses the STD to compute the position of the receiver. 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.

Problems solved by technology

It is always slow (no faster than 18 seconds), frequently difficult, and sometimes impossible (in environments with very low signal strengths), for a GPS receiver to download an ephemeris from a satellite.
Without such a periodic update, the remote GPS receiver will not accurately determine position.
In many instances, bandwidth or packet size for the transmission of this message is not readily available.

Method used

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

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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...

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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

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...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): G01S19/27G01S19/25G01S19/05G01S19/06G01S1/00
CPCG01S19/258G01S19/05G01S19/27
Inventor VAN DIGGELEN, FRANKABRAHAM, CHARLESLAMANCE, JAMES W.
Owner AVAGO TECH INT SALES PTE LTD
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