Airborne passive electronic reconnaissance equipment has developed rapidly during recent years.However,because of its expensive and unavailable military features,the simulation realization of these equipment needs to ...Airborne passive electronic reconnaissance equipment has developed rapidly during recent years.However,because of its expensive and unavailable military features,the simulation realization of these equipment needs to be solved.And the smaller the simulation particle is,the better the simulation system will be.In this study,a signal-level airborne electronic reconnaissance simulation system was built.Mathematical model and simulation realization of each part are introduced in this study.Focusing on the shortness of traditional signal sorting methods,we creatively proposed a presorting method based on the Euclidean distance inside signal flows.Simulation results show that the presorting method based on Euclidean distance successfully reduced the pressure on main sorting and appeared good for signal sorting.Simulation test results of each model built in this study are also shown in the study.This study provides a new thought on the realization of airborne electronic reconnaissance equipment and benefits the development of electronic countermeasure.展开更多
针对宽带复杂电磁环境下雷达干扰难题,设计了一种基于数字信道化结构的雷达干扰机开发验证平台,包含雷达干扰机和雷达模拟器两部分。雷达干扰机基于数字器件Xilinx V7系列FPGA,使用数字信道化分析和重构技术,实现了宽带信号收发,结合数...针对宽带复杂电磁环境下雷达干扰难题,设计了一种基于数字信道化结构的雷达干扰机开发验证平台,包含雷达干扰机和雷达模拟器两部分。雷达干扰机基于数字器件Xilinx V7系列FPGA,使用数字信道化分析和重构技术,实现了宽带信号收发,结合数字射频存储技术(Digital Radio Frequency Memory,DRFM)进行干扰源调制,可生成多种雷达干扰信号。雷达干扰机采用零中频架构,将射频信号直接数字化处理,符合现代雷达全数字化的发展趋势。同时,为了提高干扰机的开发测试效率,还基于AD9361+Zynq7020软件无线电平台设计了一个雷达模拟器。雷达模拟器能够产生各类雷达信号,并且完成信号接收和处理,动态显示发射信号、信号参数和干扰机输出信号。雷达干扰机和雷达模拟器两者形成一套完整的开发验证平台。在完成相关硬件设计的基础上,对系统进行了整体测试,验证了方法的有效性和可靠性,极大提升了干扰机的开发测试速度。展开更多
文摘Airborne passive electronic reconnaissance equipment has developed rapidly during recent years.However,because of its expensive and unavailable military features,the simulation realization of these equipment needs to be solved.And the smaller the simulation particle is,the better the simulation system will be.In this study,a signal-level airborne electronic reconnaissance simulation system was built.Mathematical model and simulation realization of each part are introduced in this study.Focusing on the shortness of traditional signal sorting methods,we creatively proposed a presorting method based on the Euclidean distance inside signal flows.Simulation results show that the presorting method based on Euclidean distance successfully reduced the pressure on main sorting and appeared good for signal sorting.Simulation test results of each model built in this study are also shown in the study.This study provides a new thought on the realization of airborne electronic reconnaissance equipment and benefits the development of electronic countermeasure.
文摘针对宽带复杂电磁环境下雷达干扰难题,设计了一种基于数字信道化结构的雷达干扰机开发验证平台,包含雷达干扰机和雷达模拟器两部分。雷达干扰机基于数字器件Xilinx V7系列FPGA,使用数字信道化分析和重构技术,实现了宽带信号收发,结合数字射频存储技术(Digital Radio Frequency Memory,DRFM)进行干扰源调制,可生成多种雷达干扰信号。雷达干扰机采用零中频架构,将射频信号直接数字化处理,符合现代雷达全数字化的发展趋势。同时,为了提高干扰机的开发测试效率,还基于AD9361+Zynq7020软件无线电平台设计了一个雷达模拟器。雷达模拟器能够产生各类雷达信号,并且完成信号接收和处理,动态显示发射信号、信号参数和干扰机输出信号。雷达干扰机和雷达模拟器两者形成一套完整的开发验证平台。在完成相关硬件设计的基础上,对系统进行了整体测试,验证了方法的有效性和可靠性,极大提升了干扰机的开发测试速度。
