Control of Rolling Missile Based on Measurement Information from Accelerometers
(1996) In MSc ThesesDepartment of Automatic Control
- Abstract
- This report is a study on placement of accelerometers in a rolling missile. A Kalman filter is used for estimation of some states of the rolling missile. The rolling angle is assumed to be known. The states are fed back to give the missile desired dynamics. Reference signals in the form of desired accelerations are also introduced. <br><br> The report shows that one transverse measuring accelerometer gives enough measure information to make estimation of the states needed for feedback possible. The estimation errors are only slightly lower if two transverse measuring accelerometers, placed perpendicular against one another, are used instead of one. Along the axis of symmetry of the missile there is an interval, in the front of the missile,... (More)
- This report is a study on placement of accelerometers in a rolling missile. A Kalman filter is used for estimation of some states of the rolling missile. The rolling angle is assumed to be known. The states are fed back to give the missile desired dynamics. Reference signals in the form of desired accelerations are also introduced. <br><br> The report shows that one transverse measuring accelerometer gives enough measure information to make estimation of the states needed for feedback possible. The estimation errors are only slightly lower if two transverse measuring accelerometers, placed perpendicular against one another, are used instead of one. Along the axis of symmetry of the missile there is an interval, in the front of the missile, where accelerometers should not be placed due to poor estimation. Bias errors in the accelerometers are efficiently eliminated by bias estimating states. Turbulent wind must be modeled in the Kalman filter to get good estimation of the angle of attack and the sideslip angle. In the controlled missile the gyrocoupling, due to the roll of the missile, is low. The small effects that are left of the gyrocoupling can be further reduced with suitable controllers. Reference signals can be introduced in the controller by feedforward of the states and control signals from a filtered reference signal. The feedforward can be done static without considerable deterioration of performance. (Less)
Please use this url to cite or link to this publication:
http://lup.lub.lu.se/student-papers/record/8848730
- author
- Delin, Stefan
- supervisor
- organization
- year
- 1996
- type
- H3 - Professional qualifications (4 Years - )
- subject
- publication/series
- MSc Theses
- report number
- TFRT-5564
- ISSN
- 0280-5316
- language
- English
- id
- 8848730
- date added to LUP
- 2016-03-24 17:59:17
- date last changed
- 2016-03-24 17:59:17
@misc{8848730, abstract = {{This report is a study on placement of accelerometers in a rolling missile. A Kalman filter is used for estimation of some states of the rolling missile. The rolling angle is assumed to be known. The states are fed back to give the missile desired dynamics. Reference signals in the form of desired accelerations are also introduced. <br><br> The report shows that one transverse measuring accelerometer gives enough measure information to make estimation of the states needed for feedback possible. The estimation errors are only slightly lower if two transverse measuring accelerometers, placed perpendicular against one another, are used instead of one. Along the axis of symmetry of the missile there is an interval, in the front of the missile, where accelerometers should not be placed due to poor estimation. Bias errors in the accelerometers are efficiently eliminated by bias estimating states. Turbulent wind must be modeled in the Kalman filter to get good estimation of the angle of attack and the sideslip angle. In the controlled missile the gyrocoupling, due to the roll of the missile, is low. The small effects that are left of the gyrocoupling can be further reduced with suitable controllers. Reference signals can be introduced in the controller by feedforward of the states and control signals from a filtered reference signal. The feedforward can be done static without considerable deterioration of performance.}}, author = {{Delin, Stefan}}, issn = {{0280-5316}}, language = {{eng}}, note = {{Student Paper}}, series = {{MSc Theses}}, title = {{Control of Rolling Missile Based on Measurement Information from Accelerometers}}, year = {{1996}}, }