摘要
为解决目前无线电罗盘天线模拟器成本高、精度低、结构复杂且无法脱机运行等问题,设计了一种基于ARM和FPGA的以新型异构双核为控制核心的无线电罗盘模拟器,利用Cardarilli结构直接数字频率合成技术实现模拟方位角信号精准合成,同时具备信号反馈、下位机脱机控制。采用标准无线电罗盘作为输入设备对该新型模拟器进行测试,结果表明,新型模拟器实现了从200 kHz到1799 kHz频率范围、0到360°范围内方位角的组合式天线信号的高精度模拟,其频率误差小于1%,方位角误差小于1°,能够满足无线电罗盘维修工作中的检测与校准需求。
A novel heterogeneous dual-core radio compass antenna simulator is designed based on ARM and FPGA so as to solve the problems of the traditional radio compass antenna simulator,such as high cost,low accuracy,complex structure and being unable to run off-line.The novel designed simulator adopts Cardarilli structure direct digital frequency synthesis technology to achieve accurate syn-thesis of analogue azimuth angle,meanwhile,to fultill signal feedback,and offline control of slave computer.The tested results by using a standard radio compass as an input device show that,the novel designed simulator can simulate the antenna signal with high accuracy in the frequency range of 200 kHz to 1799 kHz,and the azimuth angle between 0°and 360°.The frequency error and the azimuth angle error of the novel designed simulator are 1%,and less than 1°respectedly.The novel designed simulator can satisfy the requirements of test and calibration during the maintenance of radio compass.
作者
张德银
王笠
钱伟
洪文轩
ZHANG Deyin;WANG Li;QIAN Wei;HONG Wenxuan(Aviation Electronic and Electrical Institute,Civil Aviation Flight University of China,Guanghan Sichuan 618307,China;Aircraft Maintenance Base,Civil Aviation Flight University of China,Guanghan Sichuan 618300,China)
出处
《电子器件》
CAS
北大核心
2023年第4期959-964,共6页
Chinese Journal of Electron Devices
基金
中央高校基本科研业务费专项资金项目(ZJ2022-007)
中国民航局科技项目(MHRD1229)。
