Multi-resolution Modeling And Simulation Of Radar System In Electronic Warfare

Radar is an indispensable weapon system in modern warfare.It’s plays an important role in the military field.However,due to the high cost and difficulty of test simulation in kind or half-in-kind,digital simulation has been widely used.The typical ones are signal level and functional level,two different resolutions.According to different simulation requirements,suitable radar system can be selected to be used in the electronic warfare system,to realize electronic confrontation between different equipment.The traditional functional system’s resolution is low,but can be improved with the application of multi-resolution modeling method.A full-digital modeling and simulation method by computer and the C++ object oriented language technology are used to complete the modeling and simulation of the radar systems with different resolutions.Then designing different electronic warfare scenes,accomplishing the simulation and analyzing the result in this thesis.Firstly,a design scheme of multi-resolution radar system in electronic warfare is put forward in this thesis.The application of multi-resolution modeling in Radar System is analyzed.And then the application and simulation process of signal and functional system in electronic warfare systems.Signal simulation can simulate the whole process of radar signal processing,and has high resolution,which is suitable for electronic warfare systems oriented to system performance.The basic modules of signal radar system are established,which realize the basic function of radar system.In addition,some anti-jamming modules are constructed from time domain,air domain and energy domain,including the discrimination of pulse width,low side lobe,adaptive beamforming based on far-field narrowband signal,WBDF circuit and so on.The simulation and verification results of the above modules ensure that the radar system has better target detection performance when facing the complex electromagnetic environment.In this thesis,the function-level radar system uses the echo power to characterize the signal,with low resolution,simple model and small amount of data.It is suitable for the electronic warfare system facing the operation application because of the operation rate can be reached real-time.Using the multi-resolution modeling method,signal modules are polymerized to functional modules,such as sidelobe cancellation,pulse compression,moving target indicator and moving target detection.Because the type of signal and functional radar systems simulated in this thesis are all phased-array radars,resource scheduling module and data processing module are established to realize the basic function of phased-array radar.Finally,the simulation scene is constructed to simulate,and the simulation results and related test results are analyzed to verify the correctness and effectiveness of the radar system established in this thesis.The different resolution radar systems studied in this thesis are widely used in electronic warfare systems and are suitable for electronic warfare systems with different requirements,which lays a good foundation for the research of electronic warfare and has certain engineering significance and reference value.