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Inertial Navigation System

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A SMALL PRESENTATION ON INTRODUCTION TO MEMS BASED INERTIAL NAVIGATION SYSTEM WITH GPS

A SMALL PRESENTATION ON INTRODUCTION TO MEMS BASED INERTIAL NAVIGATION SYSTEM WITH GPS


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Transcript

  • 1. Navigation System TM
  • 2. Introduction What is Inertial Navigation System? Definition Navigation system based on acceleration and rotation speed measurements that provides in real time information of speed and position of vehicle together with heading and attitude (roll/pitch)
  • 3. Strap-down Inertial Navigation System
    • 3 axis accelerometers and 3 axis angular rate gyros are fixed with vehicle giving instantaneous acceleration and rotation rate of the vehicle
    • Integration of acceleration gives position and speed
    • Integration of angular rate gives attitude (roll, pitch, heading)
  • 4. Block Diagram of INS Accelerometers Gyroscopes Axis Transformation Integration Velocity Attitude Magnetic sensor GPS Kalman Filter Compensated Navigation Parameters
  • 5. Problems with MEMS sensors
    • Sensor Noise
    • Sensor Bias
    • Drift because of Temperature
    • Need redundant sensor to compensate the errors
  • 6. History of ARN-NS0535 Timeline May 2008 Sept 2008 June 2009 July 2010
  • 7. Thank you! Presented by Mr. Ashvani Shukla MD, Aeron Systems Pvt. Ltd. Email: ashvani@aeronsystems.com Web: www.aeronsystems.com

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