Design And Application Of Spaceborne Multimode SAR/InSAR/DInSAR Processing Software

Interferometric Synthetic Aperture Radar(In SAR)is a kind of measurement method used in surveying and remote sensing.The method uses two or more synthetic aperture radar(SAR)images to obtain a digital elevation model of the target area.Differential Interferometric Synthetic Aperture Radar(Differential In SAR,DIn SAR)acquires surface deformation information in target area by using SAR images of different phases in the same area.Although Spaceborne SAR / In SAR / DIn SAR systems are used in military and civil fields widely,it has a variety of working modes,and the data processing process is cumbersome,which will cause the remote sensing surveyors to take a lot of work.Therefore,developing an intelligent multi-mode,batch data,process customized SAR/ In SAR / DIn SAR data processing software is necessary in practical applications.Based on the data processing principles of spaceborne SAR / In SAR / DIn SAR,this paper introduced the design scheme and specific implementation of SAR / In SAR / DIn SAR data processing software in detail.The main research contents are as follows:(1)Analyze the advantages and disadvantages of SAR / In SAR / DIn SAR data processing software in China or other country,and expound the importance and feasibility of the development of spaceborne multi-mode SAR / In SAR / DIn SAR data processing software.Based on the development idea of engineering application software,this paper put forward the architecture system of multi-mode SAR / In SAR / DIn SAR data processing software.(2)According to the overall characteristics of the software,this paper proposes a multi-level user management plan,which is convenient for users with different degrees of professional knowledge to use the software better,and proposes a massive data batch processing scheme to achieve efficient processing of large-scale data by the software.(3)The paper combines the software architecture design theory and practical application requirements,and then completes the interface development of the onboard multi-mode SAR / In SAR / DIn SAR data processing software,proposes a custom data format conversion solution,and implements the software to convert and complete any format data Processing to ensure high compatibility of the software.It also proposes an intelligent process customization solution to implement custom processing of any module in the data processing process to ensure the fluency and efficiency of the data processing process.(4)Aiming at the multiple working modes of domestic and foreign spaceborne radar systems,an intelligent working mode recognition scheme based on data structure is proposed,and the SAR data imaging algorithm is intelligently selected according to different mode data.Through the high-precision imaging and precision analysis of data such as stripe mode,sliding beam mode and TOPS mode,the efficiency and accuracy of software processing are improved.For data with different characteristics,an intelligent In SAR / DIn SAR data processing algorithm and parameter selection scheme based on data characteristics and external prior information is proposed.The processing results of multiple sets of measured data prove that the proposed scheme is effective and efficient,and can meet Actual engineering application requirements.