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System and method for providing space-based precision position correlations for promoting improved availability, accuracy and integrity

  • US 10,222,481 B1
  • Filed: 08/04/2016
  • Issued: 03/05/2019
  • Est. Priority Date: 12/07/2009
  • Status: Active Grant
First Claim
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1. A system for providing an enhanced location determination, comprising:

  • a receiver module configured to receive a plurality of satellite signals from a plurality of satellites in view;

    an antenna associated with the receiver module, the antenna configured for receiving satellite signals from the plurality of satellites in view;

    a memory associated with the receiver module;

    a bus associated with the receiver module, the bus configured for operatively connecting the antenna, the memory, and a processor,the processor configured to;

    receive sets of satellite signals from a first satellite constellation, a second satellite constellation, and a third satellite constellation via the antenna;

    score each satellite signal based on a signal strength, a noise level, and signal geometry;

    determine a first location based on the first satellite constellation, a second location based on the second satellite constellation, and a third location based on the third satellite constellation;

    score each of the first location, second location, and third location based on the scores of the corresponding satellite signals;

    determine, from the received sets of satellite signals, if one of the first location, second location, or third location is based on a low quality signal;

    determine, from the received sets of satellite signals, if one of the first location, second location, or third location is based on a noisy signal;

    determine, from the received sets of satellite signals, if a signal of one of the plurality of satellite constellations has poor geometry based on a signal look angle;

    exclude one of the first location, second location, or third location based on the excluded location being calculated from at least one signal being one or more of the low quality signal, the noisy signal, and the poor geometry signal; and

    determine an enhanced location of the receiver module based on a location score weighted combination of two of the first location, second location, and third location.

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