| A certain type of radar electronic jammer is used to realize the deception jamming to radar,and reduce the tracking and recognition ability of the real target.In order to improve the intelligent level of the jammer,the parameters are calculated according to the real-time data loading,the jammer generated decision table and implements jamming.So the jammer should complete complex parameter calculation and have the ability of high speed signal processing.The conventional method is using FPGA to complete signal processing,and using DSP(or MCU)to complete complex calculation.According to the design requirement of the product miniaturization,this paper adopts SOPC technology to realize the design of the common platform for the jammer decision.In this paper,the design of system based on the Micro Blaze microprocessor of Xilinx Company,using EDK tools to embeds Micro Blaze into the FPGA and build the embedded system of jamming decision technology.this paper gived the design of system and each module of the software and hardware.It replaces the previous DSP(or MCU)+FPGA work mode,only uses a single FPGA to achieve all functionality of the product.The design not only reduces the size of the board and the power consumption,but also has the advantages of flexible configuration,easily cutting and product upgrade and so on.this paper analyzed the characteristics and working principle of Micro Blaze structure,and studyed the development process of Micro Blaze.According to the design idea of the system hardware platform and software flow chart,the main functional modules were designed,such as data loading,complex parameters calculation,real-time reconnaissance of radar signal,coherent oppressive jamming signal modulation,deception jamming signal modulation,jamming signal transmission.Combining the simulation experiment and the test result of the jammer system,the system can realize coherent oppressive jamming and deception jamming,and work efficiently and reliable. |
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