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TKT-2556 Basics of Inertial Navigation, 5 cr |
Pavel Davidson, Jussi Collin
| Lecture times and places | Target group recommended to | |
| Implementation 1 |
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Exam
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This course is designed to give students an understanding of the basic principles of inertial navigation, inertial sensors and implementation of Kalman filtering to fusion of INS and aiding sensors.
| Content | Core content | Complementary knowledge | Specialist knowledge |
| 1. | Inertial navigation principles, frames, errors. Level plane 2-D dead reckoning navigator. Error propagation, block diagrams. Gimballed vs strapdown. Spherical Plane 3-D Inertial Navigator. Rotation/corrections. Surface curvature/corrections. Centripetal/Coriolis corrections. Rotating Frames. North-Up navigator mechanization/error models. | Coriolis Law. Mechanization and block diagrams. Error sources. | Sensor selection. |
| 2. | Earth shape. Coordinate frames. Acceleration sensing. Navigation mechanization. Error models. Augmentation. Pendulous reference. Schuler pendulum. Schuler oscillations. Altitude instability. | ||
| 3. | Gimballed/Strapdown Error Formulation. Psi equation. Gimballed/Strapdown Error Propagation. Position, velocity and attitude error diff eqns. IMU error budgets: MEMS,FOG,RLG etc. | Geometrical, physical, mathematical definition of angular position error and attitude error. | |
| 4. | Micromachined (MEMS) Accelerometers & Gyroscopes Process technology. Errors/resolution/noise. Accelerometer and gyro error calibration Instrument errors: bias, thermal bias, scale factor, misalignments, etc. Accel and gyro residual errors. Stochastic models. | MEMS Accl and gyro principle, design, fabrication. Open vs closed loop. Multi-position rotation calibration for accel and gyro. Instrument compensation. | Manufacturers/designs/specs. |
| 5. | Leveling and Gyrocompassing Physical/analytical self leveling. Coarse alignment. Gravity/Earth rate errors. Fine leveling. Gyrocompassing. Gyro Bias. Fundamental limits. | ||
| 6. | Simple Multisensor Kalman Integration. Aiding sensors. Classical error compensation. Classical vs Kalman. Examples of Kalman filter implementation to Radar/Inertial simple example. Error models. | Optimal mechanization. Close vs Open. Mixing GPS/INS. Benefits. Pitfalls. Cascaded vs Integrated. Open vs closed loop. Coupling type: loose, tight, full, deep. | Inertial sensor error augmentation. Observable difference. |
Final exam
Numerical evaluation scale (1-5) will be used on the course
| Type | Name | Author | ISBN | URL | Edition, availability, ... | Examination material | Language |
| Book | Strapdown Inertial Navigation Technology | D. H. Tittertton | 1 56347 693 2 | Second Edition | English | ||
| Lecture slides | English |
| Course | Mandatory/Advisable | Description |
| TKT-2530 Introduction to Satellite Positioning | Advisable |
There is no equivalence with any other courses
| Description | Methods of instruction | Implementation | |
| Implementation 1 | Lectures Excercises |
Contact teaching: 0 % Distance learning: 0 % Self-directed learning: 0 % |