Design And Implementation Of Radar Signal Processing Algorithm Based On Universal Processor

Traditional radar signal processing system is based on hardware processors such as DSP or FPGA,its drawback is the high coupling of software system and hardware.This results in the poor compatibility and universality of different systems,which has made the transformation and upgrading of equipment difficult.With this background,the software-based radar signal processing architecture based on universal processor has gradually replaced the traditional hardware-oriented radar architecture.Software-based radar has become a new development direction.At the same time,considering the complex electromagnetic environment nowadays,interference detection has become an indispensable part of modern radar in order to improve the anti-jamming performance of radar.Based on the above two points,in this thesis,the design and implementation of radar signal processing system based on universal processor is completed.And also a new active jamming detection method for mechanical scanning radar is proposed,which has been effectively validated on a certain type of radar.Firstly,in this thesis,the function and composition of the radar system are proposed according to the design requirements of a radar system.This radar system is mainly composed of AD sampling and timing control interface board,gigabit or 10 gigabit switch board,signal processing and display control board based on universal processor and so on.It realizes functions such as timing control,target detection,anti-interference,data processing,data storage,interface communication,as well as interference reconnaissance and clutter contour map developed according to the characteristics of the radar.Secondly,this thesis focuses on the design and implementation of signal processing algorithm.The design idea comprehensively considers the characteristics of the system platform and the algorithm requirements,which greatly improves the overall efficiency and performance of the radar system.At the same time,the implementation of these algorithms fully demonstrate the features and advantages of universal processor platform.Thirdly,combining scientific research project a new kind of active jamming detection method of suitable for mechanical scan radar has been proposed,this method overcomes the drawback of traditional interference reconnaissance method,improves the accuracy and reliability of the radar reconnaissance active interference,and it has wide application value.Finally,this thesis introduces design scheme and specific realization process of the radar signal processing system.It includes hardware construction of radar system,the task allocation and scheduling scheme of each functional unit,and the specific implementation plan of the parallel processing on the general processor platform.In addition,this thesis introduces some key technical issues encountered in the process of engineering practice and the corresponding solutions are given,and these engineering experiences with good operability and reference significance.