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Low cost inertial navigator

  • US 20030135327A1
  • Filed: 01/11/2002
  • Published: 07/17/2003
  • Est. Priority Date: 01/11/2002
  • Status: Abandoned Application
First Claim
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1. A navigation system, comprising:

  • (a) a GPS receiver adapted to receive electromagnetic signals from a plurality of satellites, said GPS having a first output for providing a signal indicative of the position of said GPS receiver;

    (b) a magnetometer positionable for measuring one or more components of the earth'"'"'s magnetic field, said magnetometer having a second output for providing a signal indicative thereof;

    (c) an accelerometer for measuring one or more axes of acceleration, said accelerometer having a third output for providing a signal indicative thereof;

    a (d) a 3-axes rate gyroscopes for measuring the rate of rotation of the navigational system, said rate gyroscope having a fourth output for providing a signal indicative thereof; and

    (e) a computing device having;

    (i) a plurality of inputs, at least one input of said plurality of inputs in communication with each of said first, second, third, and fourth outputs; and

    (ii) a database of the magnetic fields of the earth.

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