Dissertation > Excellent graduate degree dissertation topics show

Study on Dispersion Parts by Bragg Modulating in Imaging Spectrometer

Author: RenYu
Tutor: ZhangXiHe
School: Changchun University of Science and Technology
Course: Optics
Keywords: acousto-optic tunable filter ultrasonic frequency coordination relations Kernel function spectral resolution spatial resolution
CLC: O433.1
Type: Master's thesis
Year: 2011
Downloads: 34
Quote: 0
Read: Download Dissertation

Abstract


Imaging spectrometer which based on the mechanism of acousto-optic tunable filter has a unique advantage, and TeO2 crystal is the core area which realized dispersion in acousto-optic tunable. For the need of imaging spectrometer, some basic problems in imaging spectrometer which used the material of TeO2 as the dispersion crystal and based on Bragg modulation have been theoretical researched, simulated and experimental validated.Firstly, the ultrasonic frequency coordination relations of the acoustic-optic tunable filter has been studied amply in this paper. By analysis the ultrasonic frequency coordination relations in I.C.Chang theoretical model and P.A.Gass modified theoretical model, come to the ultrasonic frequency coordination relations effects of the rotatory property of the TeO2 crystal, the ultrasonic frequency coordination relations has been simplify designed by the method of the principle of Kernel function nonlinear mapping. And a new form expression of the ultrasonic frequency coordination relations has been proposed for the first time. In considering the case of the rotatory property of the crystal, added an optical wedge exit face of crystal in order to eliminate the image drift due to dispersion effectively, and the optical wedge is optimized by eliminating the dispersion. The resolution which is one of the most important parameter of the imaging spectrometer has been simulating. Finally, the theory of diffraction angle and spectral resolution is verified by the experiment, and calculate the shift of the image to verify the merits of the spectral images imaging.

Related Dissertations

  1. Modulation Pattern Recognition and Parameter Estimation for Ground Wave Radiation Sources,TN957.51
  2. Process Support Vector Machine and Its Application to Satellite Thermal Equilibrium Temperature Prediction,TP183
  3. Astudy on Hierarchical-Matrix-Based Algorithm for Solving Electromagnetic Problems of the Volume Integral Equation,O175.5
  4. Capsule endoscopy and endoscopic image portable receiver system bleeding Recognition Algorithm,TP391.41
  5. Kernel-based SOM time series prediction,O211.61
  6. SVM kernel function parameter selection method,TP18
  7. The Large-update Primal-dual Interior-point Algorithms for a Class of Complementarity Problems Based on Kernel Functions,O221.2
  8. Research on Clustering Algorithms for Source Code Mining,TP311.13
  9. Based on W-SVR Supply Chain Risk Assessment,F224
  10. Space-based transformation flooded layer identification method,P618.13
  11. Based on partial least squares and least squares support vector machine algorithm for prediction of reservoir parameters on the application,P618.13
  12. Nonlinear Flow Analysis of Fractal Composite Reservoir Based on the Similar Structure,TE353
  13. Mechanical fault diagnosis method based on kernel function method,TH165.3
  14. Based on kernel regression and non- local method of image denoising,TP391.41
  15. Rate -based transcoding of compressed video auxiliary spatial resolution conversion method,TP391.41
  16. Sensitivity and Spatial Resolution of an Application-adaptive Small Animal PET,R310
  17. The Study of Multi-field Adaptive Classfication Based on Support Vector Machine,TP181
  18. Analysis of Gene Expression Profile Based on SVM and Research on Function Sets’ VC Dimension,TP18
  19. Annular region on the border control reaction-diffusion equation,O231
  20. Novel Intelligent Pattern Recognition Methods and Its Application,TP391.4

CLC: > Mathematical sciences and chemical > Physics > Optics > Spectroscopy > Spectral measurements
© 2012 www.DissertationTopic.Net  Mobile