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USE OF ACCELEROMETER ONLY DATA TO IMPROVE GNSS PERFORMANCE

  • US 20110184645A1
  • Filed: 01/28/2010
  • Published: 07/28/2011
  • Est. Priority Date: 01/28/2010
  • Status: Active Grant
First Claim
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1. A method of accelerometer assisted satellite navigation, comprising:

  • detecting a stationary condition of an accelerometer set;

    gross-calibrating said accelerometer set when in said stationary condition, wherein gross-calibrating includes determining a combined-bias of said accelerometer set;

    defining at least two acceleration levels using said combined-bias;

    collecting accelerometer data;

    categorizing said accelerometer data into one of said at least two acceleration levels; and

    utilizing the categorized accelerometer data to enhance satellite navigation.

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