Inertial Navigation System

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

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
Transform
ation
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: [email protected]
Web: www.aeronsystems.com