Dissertation > Excellent graduate degree dissertation topics show

The Key Technology Research of the Panoramic Aerial Camera Dynamic Resolution Detection System

Author: BaiXueMei
Tutor: AnZhiYong
School: Changchun University of Science and Technology
Course: Optical Engineering
Keywords: Panoramic aerial camera Dynamic resolution detection Infinity dynamic target Uniform linear motion Fuzzy RBF Neural Network
CLC: P231
Type: PhD thesis
Year: 2009
Downloads: 333
Quote: 1
Read: Download Dissertation


Panoramic aerial camera is mounted in the aircraft on the ground photographic precision optical instruments, is an important device reconnaissance carrier. Panoramic aerial camera performance detection system, the dynamic resolution detection is very important. Dynamic resolution is an important basis for image quality measure camera to take pictures in the random flight process or when taking pictures of moving objects. This paper, dynamic resolution panoramic aerial camera detection system and the key technologies involved in specific research. The papers in the panoramic aerial camera imaging principle on the basis of a detailed analysis of the proposed dynamic resolution detection of overall program. The detection system consists of the infinity dynamic target system, stable platform for its mechanical, electrical control system structure. Infinity dynamic shooting target placed in the camera scan within three different angles infinity dynamic target event of a system camera; stable platform system provides aircraft attitude movement and forward movement of the working environment, to mimic the aerial camera in the aircraft in which the various postures. The entire system related to key technologies including infinity dynamic target technology, linear motion control technology and stable platform control technology. Paper, infinity dynamic target system build, design a large field of view collimator (focal length 1000mm, depending on the angle of 5 °), foot-shaped resolution board (JB / T 9328-1999 standard pattern replication stitching production ), and the linear motion device. Camera exposure time of the camera, the foot-shaped resolution plate movement to the collimator field of view, to simulate infinity dynamic target. Infinity dynamic target of infinity dynamic target speed uniformity and uniform segment higher speed coverage (50mm / s ~~ 1500mm / s). In response, in this paper, a straight-line the uniform motion control algorithm, the repetitive control algorithm the nonlinear PID algorithm, friction feed forward compensation algorithm and torque feedforward compensation algorithm for composite, and the composite control algorithm transplant to a programmable multi-axis Motion Controller (PMAC), and the uniform segment reached 300mm, instantaneous speed error is less than 1.5 mm / s. Paper, the angular position of the Euler angles describe the mathematical model of the three-axis stabilized platform, and analyzed the the aircraft attitude error image motion compensation. Come to meet the engineering applications, dual-axis stabilized platform can be used to be the realization conclusions. In the control system, a Bayesian probability is introduced into the fuzzy RBF neural network to enhance the reasoning ability of the system to improve the aircraft analog servo precision of each fairway position. As can be seen from the simulation results, stable platform for tracking error is less than ± 0.005 °. The resolution detection theory applied to the dynamic resolution panoramic aerial camera detection system, through infinity dynamic target event of a system, the system of linear motion systems and stable platform design and realization of complete dynamic resolution detection, as provide an important basis for measuring image quality of panoramic aerial camera.

Related Dissertations

  1. Research and Implementation of Algorithm for Restoration of Motion Blurred Images,TP391.41
  2. Study on Intelligent Control Strategy for Large Aspheric Mirror Polishing Process,TH74
  3. Freeway ramp control study,U491.54
  4. The Endpoint Detection Algorithm of Speech Based on Fractal Dimension,TN912.3
  5. Intelligent Control Study on Electro-Hydraulic Servo Systems,TM921.5
  6. Research on Production Logging Datum Interpretation Method on Fuzzy Neural Networks,P631.84
  7. Creation of Correct Motion-blurred Simulated Images,TP391.41
  8. Study on Friction Compensation for X-Y Table,TG659
  9. Research on Health Monitoring for Composite Structures Based on Radial Base Function Neural Network and Fuzzy Theory,TB33
  10. Study and Application on Fuzzy Artificial Immune Network,TP183
  11. Research on Fuzzy RBF Neural Network Applied in Face Recognition,TP391.41
  12. Study on Fuzzy RBF Neural Network Based on RPROP-DE Algorithm,N945.14
  13. Modeling and Control of Water Separating Slurry Pump,TH38
  14. The Creation of 3d Digital Terrain Model and Research on Terrain Analysis Methods,P231.5
  15. GPS-supported aerial triangulation in the large -scale aerial photogrammetry experimental study,P231
  16. System Integration and Simulation of Remote Sensing Based on LAI,P231
  17. Study on Schemes and Technologys of Improving UAVRS-F Photogrammetry Elevation Accuracy,P231
  18. Experimental study based POS system aerophotogrammetry,P231.2
  19. The Research and Application of 3D Editing Technology of DLG,P231.5
  20. Based DPGrid low altitude UAV aerial image of applied research,P231
  21. The Theoritical Approach and Praxis of Multi-Sensor System Calibration,P231

CLC: > Astronomy,Earth Sciences > Surveying and Mapping > Photogrammetry and Surveying, Mapping and Remote Sensing > Aerial Photogrammetry
© 2012 www.DissertationTopic.Net  Mobile