Dissertation > Excellent graduate degree dissertation topics show

Research on Echo Simulation and Interferometry of INSAR

Author: ZhangPengYu
Tutor: ZhaoShuQing
School: Harbin Institute of Technology
Course: Signal and Information Processing
Keywords: SAR INSAR phase unwrapping leveling
CLC: TN958
Type: Master's thesis
Year: 2009
Downloads: 57
Quote: 0
Read: Download Dissertation

Abstract


Synthetic Aperture Radar Interferometry (INSAR) is a technical which use the phase information of SAR to extract the three-dimensional surface information and the change of height information. In the last 30 years, INSAR has been applied more and more widely.This paper introduced the basic principle of SAR and the principle of INSAR height measurement. Analyzed the reasons of SAR can obtain better resolution on azimuth and range is synthetic aperture technique and pulse compression technique. Introduced the geometric principle of INSAR height measurement and the data processing.This paper also introduced the model of SAR echo and SAR point target echo simulation. Simulating the INSAR point target echo, the paper used Range-Doppler (R-D) algorithm to imaging process for echo data. On the basic of imaging result, this paper analysis and simulate the the main processes of INSAR height measurement. Specific studied the principle of flat-earth effect and the three main methods for remove flat-earth effect which are geometric relationship method, time domain method and frequency domain method. In above three methods, geometric relationship method can achieve the best remove flat-earth effect in the condition of determined system parameters. But the other methods are suited for real INSAR system. Because they need not know the determined system parameters but only use the information of interference phase itself. The paper also analyzed the phase unwrapping method which based on the residual point detection’s path integral. Completed the phase unwrapping through above method, the paper get the elevation map of measuring field using the relationship of phase and elevation.Finally, this paper analyzed the two parameters which are baseline length and baseline elevation angle impacting for height-measure accuracy.

Related Dissertations

  1. Research on the Super-resolution Technologies of Polarimetric SAR Images,TN957.52
  2. Synthesis and Fungicidal Activity of 2-Acyloxycycloalkylsulfonamides,S482.2
  3. Research on Super-resolution Reconstruction in SAR Image,TN957.52
  4. SAR interferometric method for optimal selection,P225.2
  5. Gansu Province, Personnel Structure and Economic Development Study of Adaptation,C964.2
  6. The Development of the Interference Testing System for Optical Fiber Connector Surface,TN253
  7. Reduce congestion rate and support resources balanced use of new optical networking research,TN929.1
  8. SSD controller wear leveling algorithm,TP333.35
  9. Two kinds of wideband radar SAR imaging method and test applications,TN958
  10. A Study on the Unmanned Aerial Vehicle Airborne SAR System Techniques,TN957.52
  11. A FTL Algorithm Combined with Hot Data Identifier,TP333
  12. Ground Information Extraction Using PolSAR Data,TN958
  13. Polarimetric SAR coherent information on registration and change detection algorithm,TN957.52
  14. Monitoring Ground Subsidence of Urban Region by Differential Sar Interferometry Based on Persistent Scatterers,P237
  15. The Establishment of Weakly Nonlinear Model for Deep-sea Internal Waves and Its Application in South China Sea,P731.24
  16. Back Scattering Mechanisms of Typical Terrain Cover Types and Its Application in Image Classification,P237
  17. Research on Improving Plant Persistence Disease Resistance by Inducible Signal Pathways,Q945
  18. Study on DInSAR Technology and Its Application of Monitoring Land Subsidence in Mining Area,TD325.4
  19. Airborne SAR of Ocean Scene Simulation System Design and Visual Implementation,V243.2
  20. Image Segmentation of Improved Spectral Clustering,TP391.41
  21. Research on RAID Mechanism in Storage System Based on Flash Memory,TP333

CLC: > Industrial Technology > Radio electronics, telecommunications technology > Radar > Radar: institutional sub-
© 2012 www.DissertationTopic.Net  Mobile