Design And Implementation Of Mini SAR Software System

Mini SAR,a new kind of radar system,which differs from traditional pulse SAR system,is based on synthetic aperture radar technology and frequency modulation continuous wave(FMCW)technology.Mini SAR has not only the advantages of all weather and all time capabilities like the traditional SAR system,but also has the advantages of light weight,small size,low power consumption and low cost.Mini SAR can be carried on unmanned aerial vehicles or other small platforms which are widely used in surveying and mapping,high-risk area detection,civilian military target detection and investigation.The thesis mainly does some research of the design and implementation of software system of Mini SAR.The content of the thesis includes imaging technology,the overall design of Mini SAR,the design of software system of Mini SAR and so on.Conbined with the engineering implementation,the thesis analyze the key problems of design an implementation of the software system.This thesis mainly complete the following work:1?Study the imaging technology of Mini SAR.Firstly,study the method of pulse compression.Come to a conclusion that the dechirped technology can simplify hardware structure of the radar system.And then based on the traditional imaging algorithm,derive the RD imaging algorithm and wave number imaging algorithm,which are suitable for Mini SAR.And verify the algorithms through MATLAB.2?Based on the engineering implementation,the design of the Mini SAR system is given and the signal processing of the system has been analyzed.According to the demand of the radar system,designed the framework of the software system of Mini SAR.3?Based on the C/S structure mode,the software system is divided into two basic units.According to the functional demand,the software system have been designed and implemented.For the embedded software applications,the division of application tasks?task scheduling and tasks processing have been designed and implemented.The upper computer system software was implemented with the C# programming language on the Visual Studio 2013 IDE.Its functions include: control of the radar,receive real-time data,signal processing,etc.4?Test and verify the validity of the software system.The veracity of the Mini SAR system has been verified through the outfiled test.