精密测距器专用检测设备设计与验证  

Design and verification of special testing equipment for PDME

作　　者：谢洪森 王鼎 刘云飞 黄子革 张建明[2] XIE Hongsen;WANG Ding;LIU Yunfei;HUANG Zige;ZHANG Jianming(Naval Aviation University,Qingdao 266041,China;The 20th Research Institute of China Electronics Technology Group Corporation,Xi’an 710068,China)

机构地区：[1]海军航空大学青岛校区,山东青岛266041 [2]中国电子科技集团公司第二十研究所,陕西西安710068

出　　处：《现代电子技术》2023年第12期15-21,共7页Modern Electronics Technique

摘　　要：精密测距器主要为空中飞机提供连续、精准的距离导航信息,是确保飞行安全的重要设备之一。针对精密测距器周边电磁干扰环境复杂多变、需进行常态化性能指标检测标校的实际应用情况,文中采用ARM微处理器、DSP和FPGA等技术设计一种便携式专用检测设备。综合运用C/C++、汇编语言、VHDL与Verilog等,在不同编程环境下开发软硬件测试程序。在实现对精密测距器在IA和FA模式下的应答延时、目标距离、应答效率等常规测试的基础上,创新性地加入接收机灵敏度、动态范围、邻波道抑制和通频带等高级测试功能,并结合精密测距系统进行测试实验。实验结果表明,所设计的专用检测设备测距精度误差满足指标要求(优于±30 m),能够有效满足精密测距器常态化检测的需求。PDME(precision distance measuring equipment)is mainly used to provide accurate range and navigation information for aircrafts continuously,and is one of the important equipment to ensure flight safety.In allusion to the practical application of the precision rangefinder working in complex and variable electromagnetic interference environment,which requires normalized performance index detection and calibration,a kind of portable dedicated detection equipment using ARM microprocessor,DSP,FPGA,and other technologies is designed.The testing program is developed in different operating environments by means of C/C++,assembly language,VHDL and Verilog description languages.On the basis of achieving routine testing of the response delay,target distance and response efficiency of precision rangefinders in IA and FA modes,some advanced testing functions such as receiver sensitivity,dynamic range,adjacent channel suppression and passband are innovatively added.A testing experiment was conducted in combination with a precision distance measuring system.The experimental results show that the ranging accuracy error of the designed dedicated detection equipment can meet the requirement of the index(better than±30 m),and can effectively meet the requirements for normalization detection of PDME.

关 键 词：检测设备 精密测距器 程序开发 硬件设计 软件设计 测试实验 

分 类 号：TN967.2-34[电子电信—信号与信息处理]