Modeling And Simulation Of Typical Phased Array Radar

With the increasing importance of radar in military strategy,phased array radar technology has been widely concerned.Compared with traditional mechanical radar,phased array radar can realize not only inertia scanning,beam agility,but also can combine signal processing technology to achieve multi-target tracking,radar imaging,target feature recognition and other advanced features.Such a broad use of the scene,it makes phased array radar technology have a high research value.Due to many technical advantages of phased array radar,phased array radar has been widely used in a variety of scenarios.Depending on the application scenarios,it is often necessary to combine phased array technology with a specific domain technology.At this time the rational use of computers on the radar system modeling and simulation was particularly important.In this paper,the application of phased array radar in the remote warning and missile guidance was researched.Meanwhile,the paper proposed a new method to calculate the antenna phase center,the main contents include the following points:1,Introduced the basic principle of phased array radar and analyzed the composition of radar echo signal and its mathematical model.At the same time,the basic process of signal processing of phased array radar was introduced,and the techniques of pulse compression,moving target detection and keystone transformation were discussed emphatically.2,Analyzed the performance parameters of the large-scale phased array warning radar in reverse direction.Taking the antenna array and the sub-array division as examples,the paper analyzes the radar parameter information from the multi-angle and gives the corresponding simulation results.For the problem of the phase center calculation of phased array antenna,the paper described the new calculation method based on the monopulse angle measurement in detail,and compared it with the phase gradient method in a simulation experiment.3,Combining the reverse analysis of the system parameters,the paper modelled the large-scale phased warning radar and simulated the radar system.The simulation results are given for the signal model,signal processing,data processing and resource management respectively.At the same time,the paper constructed the scene of the multi-target intrusion and the target splitting,and made the simulation experiment for the whole warning radar.4,Modelled the phased array radar guidance system and simulated the whole system.Combining the principle of radar,the thesis gave the whole system design framework and work flow.For the missile guidance scene,the basic principle and mathematical model of the proportional guidance method were introduced.Using the object-oriented design way and MFC software library,the paper designed the software architecture of the whole radar guidance system,and programmed its image interface system.Constructing the experimental scene,the thesis used the platform to intercept a flight target,and gave dynamic simulation results.