球载观测系统的无线图像传输系统设计  

The Design of Wireless Image Transmission System for Balloon-borne Observation System

作　　者：曹院 董登峰 许桢英[1] 周维虎[2,3] 何洋 CAO Yuan;DONG Dengfeng;XU Zhenying;ZHOU Weihu;HE Yang(School of Mechanical Engineering,Jiangsu University,Zhenjiang 212013,China;Laser Measuring Room,Academy of Optoelectronics,Chinese Academy of Sciences,Beijing 100094,China;School of Optoelectronics,Beijing Information Science and Technology University,Beijing 100192,China;School of Optoelectronics,University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]江苏大学机械工程学院,江苏镇江212013 [2]中国科学院光电研究院激光测量室,北京100094 [3]中国科学院大学光电学院,北京100049 [4]北京信息科技大学光电学院,北京100192

出　　处：《电子科技》2019年第4期10-15,共6页Electronic Science and Technology

基　　金：国家自然科学基金(61675211);中国科学院战略先导科技专项(A类)(XDA13030404)~~

摘　　要：为实现系留气球观测系统轻量化无线图像高速稳定传输,文中采用了ZYNQ+AD9361硬件架构和正交频分复用技术实现无线图像传输系统设计。ZYNQ的FPGA部分实现了与AD9361射频前端的数字接口,与ZYNQ的ARM部分的数据通道,以及基于IEEE 802.11a标准的基带处理器物理层。ARM部分运行Linux操作系统,可在该系统上完成对AD9361配置的应用程序的开发、物理层管理以及与上位机和摄像机的数据交互。无线图像传输系统的引入,实现了空中系留气球观测平台与地面控制中心点对点的无线图像传输,增强了系留气球观测系统目标监测的可靠性。该通信系统结合了软件无线电系统灵活性配置、正交频分复用技术频谱利用率高以及抗多径效应等优点,能够随着系留气球观测系统应用于各种复杂环境中。In order to achieve lightweight and high-speed wireless transmission of images in the tethered balloons observation system,hardware architecture ZYNQ+AD936 orthogonal frequency division multiplexing technology was adopted.The digital interface with AD9361 RF front end,the ARM part data channel with ZYNQ,as well as the physical layer of baseband processor based on IEEE802.11a standard could be realized through FPGA part of ZYNQ.The ARM section ran the Linux operating system,where the development of AD9361 configuration applications,physical layer management,and data interaction with the host computer and the camera could be achieved.The introduction of wireless image transmission system accomplished the point to point wireless image transmission between the air balloon observation platform and the ground control center,enhancing the reliability of tethered balloons target monitoring observation system.The proposed communication system combined the merits of software radio system,flexible configuration and orthogonal frequency division multiplexing spectrum of high utility and anti-multipath effect,thus it could be applied to a variety of complex environments with the tethered balloon observation system.

关 键 词：系留气球 无线图像传输 正交频分复用 AD9361 软件无线电 通信 ZYNQ 

分 类 号：TN919.5[电子电信—通信与信息系统]