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Compact navigation system and method

  • US 6,918,186 B2
  • Filed: 01/30/2004
  • Issued: 07/19/2005
  • Est. Priority Date: 08/01/2003
  • Status: Active Grant
First Claim
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1. A compact navigation system for a rover, the navigation system comprising:

  • a housing configured to be transported by the rover;

    a gimbal system having two or more gimbals that includes at least an outer gimbal connected to said housing and an inner gimbal nested in and connected to said outer gimbal;

    a solid state three-axis gyro assembly mounted on said inner gimbal;

    a solid state three-axis accelerometer assembly mounted on said inner gimbal;

    a gyro logic circuit responsive to said three-axis gyro assembly for producing an inertial angular rate about each gyro input axis;

    an accelerometer logic circuit responsive to said three-axis accelerometer assembly for producing a non-gravitational acceleration along each accelerometer input axis; and

    a processor responsive to said gyro logic circuit and said accelerometer logic circuit for determining the attitude and the position of said housing to provide for long term accuracy of the attitude and the position for navigation of the rover.

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