Research On Ammunition For Wireless Communication

With the development of precision-guided weapons and their ever-increasing status in modern warfare,all countries in the world are actively participating in the research of technologies in related fields.Among them,with the progress of the on-board wireless communication technology,the informatized weapons with 'people are in the loop' have achieved considerable development.Therefore,this dissertation analyzes the key technologies adopted in this application scenario and the physical layer receiving and sending waveforms for the application scene of the on-board wireless communication.It is implemented on the algorithm prototype rapid verification platform.In the laboratory environment,The performance of key indicators was verified.Specifically include the following.Firstly,the status quo of the three key technologies of frequency synchronization in anti-jamming interception,time synchronization in large dynamic range and signal-to-noise ratio at large low frequency in missile-borne wireless communication environment is analyzed.Secondly,the spread spectrum system is used to improve the performance of anti-jamming interception,and the physical layer frame structure and key algorithms are designed for large dynamic and low signal-to-noise ratio conditions.Simulation verification is performed.Then,the physical layer waveforms of the missile-borne wireless communication are implemented.The implementation details of the key algorithm on the FPGA are given,including the top layer architecture of the physical layer,the partition of the subsystem,the definition of the module interface,and the detailed implementation mode and module processing flow.Finally,on the hardware test platform,the performance of the designed physical layer wave characteristics of the on-board wireless communication is verified.The experimental and analysis results show that the physical layer waveform of the missile-borne wireless communication designed by the thesis meets the requirements of the design specifications.Compared with the fixed-point simulation link mathematically modeled,when the bit error rate reaches 10e-6,the performance loss of the experimental result is about 2dB.The research method and research results of the on-board wireless communication in this dissertation have important theoretical and practical reference value for the design of the physical layer of wireless communication in the scene of large dynamic and low signal to noise ratio communication.