Design And Implementation Of Spaceborne InSAR Data-processing Software

Spaceborne interferometric synthetic aperture radar is an all-weather, all the time, and rapid access to acquire high-precision DEM of a global scale. It is one of the focuses at home and abroad. The thesis designs a set of spaceborne InSAR data processing software that is available to deal with both emulational SAR data of Distributed Spaceborne InSAR Simulation System and practical SAR data acquired by ERS and ENVISAT SAR satellites. The software has excellent algorithms library expansion capacity and flexible parameters configuration capacity to meet some flexible application needs for the professional researchers.The main jobs of this thesis are as follows:In the first chapter, the status about InSAR technology and InSAR data processing software at home and abroad is introduced firstly. Then, the necessity of designing a new spaceborne InSAR data processing software is discussed.Chapter two studies the spaceborne InSAR data processing software architecture design. Firstly the basic principle and flow of InSAR processing are introduced. Then, the thesis analyses the features and architecture models of InSAR data processing software. Finally according to characteristics of software and architecture model, a model of software architecture design is proposed.Chapter three introduces the development and implementation of the spaceborne InSAR data processing software. Firstly some technical problems needed to be resolved about the development and implementation of the software are analyzed. Using programmed, modularized, integrated software development methods, all software modules are developed and integrated together. Finally the main functions, explanations, differences and expansion of the software are introduced.Chapter four studies the applications of the spaceborne InSAR data processing software. Both emulational SAR data of Distributed Spaceborne InSAR Simulation System and practical SAR data acquired by ERS and ENVISAT satellites are processed using the spaceborne InSAR data processing software. The experimental study is carried out to compare the performance of different InSAR data processing algorithms.Finally, a summary is given, and some problems to be solved and the research proposals are provided.