Design And Implementation Of Radar Environment And Multi-targets Echo Signal Simulation Software

In recent years,the relevant techniques of radar have grown rapidly due to its important role in the battlefield.To meet the increasing requirements of the development of the new technology radar system,the radar environment and the target echo signal simulation technology are widely used in the radar debugging process.The simulation technology can be realized by radar signal simulator which utilizes the powerful computing and virtual capabilities of computer software.The software need to combine with various types of vector signal generator into a common radar signal simulator.Therefore,the development of a versatile radar environment and multi-target echo signal simulation software with high integration is of great significance.Based on the analysis of the functions of the current radar simulation software,this thesis provides a general software scheme which enables the software to simulate radar environment and echo signal of multi-target.According to the structured thought and the radar signal's simulation process,the software is divided into display module,signal simulation module and interface module.Moreover,the function of each module is designed,in which the display module is used to complete the human-computer interaction that controls other modules.The signal simulation module is developed according to the environment and multi-target echo signal simulation algorithm.It simulates the necessary radar transmission signal,the target echo signal and the radar environment echo signal.The interface module is used for software to communicate with the outside world,including various types of vector signal generators.In this thesis,the C++ language is used in the signal simulation module to implement the radar transmitter signal sub-module on the VS2010 platform.The interface module is designed to plot wave.The signal simulation module is the core of software,in which transmitted signal is generated by the process that can be divided into envelope generation,pulse repetition and signal modulation.Modulation signal includes the transmission signals of eight kinds of standard radar.The radar can be divided into continuous radar,conventional pulse radar,pulse compression radar,frequency diversity radar and other standard types.The software realizes the function in antenna module,multi-target echo module,jamming module,noise module and clutter module.Clutter module is composed of ground clutter,sea clutter and weather clutter.Jamming module consists of pressing jamming,treat jamming and chaff jamming.The interface module guarantees the multi-standard radar vector signal simulation system is composed of software interface and the vector signal generator.The interface module of the connection includes LAN / GPIB and data file,which transmit and save the data.Finally,this thesis designs the software test environment and selects typical cases to complete the software test.By analyzing the test results can prove the correctness and reliability of the software.