Dissertation > Excellent graduate degree dissertation topics show

Performance Research of Target Acquisition for Photoelectrical Theodolite Based on Sliding Mode Control

Author: WuPei
Tutor: GaoHuiBin
School: Graduate Schoo,Chinese Academy of Sciences
Course: Mechanical and Electronic Engineering
Keywords: sliding mode control full-field acquisition non-overshoot chattering-free miss distance prediction
CLC: TP273
Type: Master's thesis
Year: 2010
Downloads: 48
Quote: 2
Read: Download Dissertation

Abstract


The target acquisition of photoelectric theodolite system refers to the transient process in responding the position signal of target found in the view field, and acquisition capability depends on dynamic performance of the system.In this paper, sliding mode control (SMC) is proposed for servo system of photoelectric theodolite and target acquisition capability and performance are both improved. Besides, sliding surface with variable coefficient and continuous control law without switching is introduced in the SMC controller design. The improved SMC controller has eliminated system’s chattering phenomenon and full-field acquisition with rapid response and non-overshoot is achieved.In simulation, the width of view field is 1.53o, the max angular velocity of theodolite is 78 o/s, and target extraction time is 3 frames. Under these conditions, the system can acquire targets with a max velocity of 12.5 o/s not using memory tracking, while can acquire targets with a max velocity of 23 o/s using memory tracking, when the settling time is limited in 0.8s.In addition, TV tracker usually causes input delay of miss distance, because the sampling frequency is too low and the image processing delays for some time. This paper proposes a method of miss distance prediction based on adaptive LMS filter and successfully overcomes the adverse effects owing to the input delay of miss distance.

Related Dissertations

  1. Attitude Control of a Three-Axis Stabilized Satellite,V448.22
  2. Satellite Attitude Control Methods Using Only Magnetorquers,V448.222
  3. Attitude Determination and Finite Time Control Algorithms for a Satellite,V448.222
  4. The Application of Fuzzy Control and Neural Network in Planar Double Inverted Pendulum,TP273.4
  5. Research on Design of an Angular Acceleration Control System,TP273
  6. Sliding Mode Variable Tructure Control for Separating-Mirror System and Inhibit Chattering,TP273
  7. On Attitude Control and Vibration Suppression of Flexible Spacecraft,V448.2
  8. Image-based active vision tracking technology,TP391.41
  9. Research on Attitude Determination and Control of Small Satellite Based on Nonlinear Filter,V448.2
  10. Service-oriented enterprise knowledge workers sliding mode control of dynamic systems research,F719
  11. Switched Linear Stochastic Systems Sliding Mode Control,TP13
  12. The Study on Control for Submarine Space Motion,U674.76
  13. Optimal Trajectory Design and Control for Space Interception,V412.41
  14. On Variable Structure Control Based on Sliding Mode for a Class of Robot Systems,TP242
  15. Technology of Statcom Based on Sliding Mode Control,TM761
  16. Research on the Balance Control of Single Linear Inverted Pendulum Based on Kalman Filter,TP13
  17. Research of the Control of Wind Turbine Tower Side to Side Vibration and the HSMC in the DFIG,TM315
  18. Several Problems of Stabilization on Degenerate Differential Systems with Delays,TP13
  19. Research Onabs Sliding Mode Control Simulation Based on ADAMS and MATLAB,U463.526
  20. Research on the Control System of Submerged Arc Welding with Changeable External Characteristics,TG434
  21. Robust and adaptive unmanned helicopter Tolerant Control Technology,V249.1

CLC: > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation systems > Automatic control,automatic control system
© 2012 www.DissertationTopic.Net  Mobile