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A signal and receiver technology, applied in the field of point locators, can solve problems such as potential application limitations of global navigation satellite technology

Inactive Publication Date: 2008-11-26
GPS SOURCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Without enhanced coverage, the potential applications of these GNSS technologies may be severely limited

Method used

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Embodiment Construction

[0020] The invention will now be described more fully hereinafter with reference to the accompanying drawings, in which various aspects of the invention are shown. However, this invention may be embodied in different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully encompass the scope of the present invention, to those skilled in the art. The described elements and figures have been necessarily drawn to scale, emphasis instead being placed upon clearly illustrating the principles of the invention.

[0021] For purposes of this disclosure, a "reconstructed signal" may include reconstruction of a signal utilizing slight modifications to signal components, replacement of one or more signal components, and complete replacement of all signal components. Reconstructing a signal may be referred to as modifying signal characteristics. Also, it...

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Abstract

A system and method is provided for enhancing the coverage and capabilities of Global Navigation Satellite Systems (GNSS) using signal emitters. The signal emitters generate and emit GNSS Radio Frequency (RF) signals that may possess varying sets of information. In some situations, the information may include relative pseudo-random code phases and Doppler frequencies that correspond to the known location of the signal emitter or other locations. In some situations, the GNSS satellite constellation time, and the GNSS satellites that may be visible at a known location were the authentic GNSS signals not obscured or at another location.

Description

[0001] Related application information [0002] This application claims priority to US Patent Application Serial No. 60 / 714,860, filed September 8, 2005, the contents of which are expressly incorporated herein by reference. technical field [0003] Aspects of the invention relate generally to global navigation satellite systems. More specifically, the present invention relates to increasing the coverage of satellite systems. Background technique [0004] Global Navigation Satellite System (GNSS) is the term generally used to describe a system of radio navigation satellites that orbit the Earth and transmit reference signals that enable certain types of radio navigation receivers to determine their position on or near the Earth's surface surface position. For example, the Global Positioning System (GPS) is the GNSS currently in use by the United States. In addition to GPS systems, there are other similar GNSS systems that currently perform or will perform similar functions...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S5/14G01S19/11
Inventor R·R·霍顿P·W·科伊纳
Owner GPS SOURCE