Research And Design Of Communication Link In Dynamic Induction Setting Verification System

In the battlefield environment dominated by high-tech,the dynamic induction setting system has gradually become an indispensable part of modern weapon systems.In the development process of the dynamic induction setting system,the reliability of the relevant design of the code system,output circuit,and transmission coil matching degree must be verified.Because each weapon platform has different requirements on system communication protocol,interface electromagnetic characteristics,relative installation position of primary/secondary coils,etc.,the design is of great difficulty.Most of them fail to set up a system verification platform,and only replace the verification process by design simulation.Therefore,a dynamic induction setting verification system must be designed to provide a design basis and verification environment for the development of the dynamic setting system.This paper mainly studies and designs the communication link of the dynamic induction setting verification system.According to the actual functional requirements,this paper studies the theory of information encoding,decoding,modulation and demodulation used in the system communication link,determines the key technologies used,and completes the communication link design of the dynamic induction setting verification system.Firstly,a variety of error control coding methods are analyzed and compared.Finally,RS(15,9)codes are selected.Based on the traditional RS decoding algorithm and the actual application background,the decoding algorithm is improved,which reduces the decoding calculation by 20%.Secondly,the signal modulation and demodulation technology adopted is analyzed in detail,and the design of 3ASK,2FSK and 2DPSK modems is completed.Then with the FPGA as the core,the hardware design of the communication link is completed.The hardware design part mainly includes data communication circuit,FPGA control circuit,DA/AD conversion circuit and data storage circuit.Finally,the software design of the communication link is completed by using the hardware description language Verilog HDL.The software design part includes the data communication module,the data codec module,and the data modulation and demodulation module,and the function simulation is realized by Modelsim.The communication link designed in this paper mainly includes two parts:the setter and the fuze receiver.The setter completes the reception,encoding and modulation of the information,and the fuze receiver realizes the demodulation,decoding and storage transmission of the data,and the setter transmits the information to the fuze receiver through the coupling coil.To verify system functionality,the communication link is tested after hardware design and software design is completed.Firstly,each module is tested,and the overall test is performed on the basis that each module meets the requirements.The test result is:the information transmission rate of the communication link reaches 8.3 KB/S to meet the project design requirements.