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Control of Rolling Missile Based on Measurement Information from Accelerometers

Delin, Stefan (1996) In MSc Theses
Department 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:
author
Delin, Stefan
supervisor
organization
year
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},
}