电离层斜向返回探测系统的主控制器研制  

Design and implement of main-controller in ionospheric oblique backscattering sounding system

作　　者：陈曦[1] 赵正予[1] 时雨[1] 石书祝[1] 

机构地区：[1]武汉大学电子信息学院,湖北武汉430079

出　　处：《电波科学学报》2005年第5期598-603,共6页Chinese Journal of Radio Science

基　　金：国家自然科学基金资助项目(40474066);国防科技重点实验室基金资助项目(514860201)

摘　　要：介绍伪随机码调相脉冲压缩体制的新型电离层斜向返回探测系统的概况,重点讨论基于软件无线电思想的探测系统核心部件-主控制器的设计与实现。实验探测结果表明,该系统具有探测功率低、距离分辩率高的特点,能够同时获取电离层多普勒信息和“距离—频率—幅度”探测图。实测过程中,自主研制的由DSPs、FPGA器件构成的主控制器工作稳定,运行良好,满足探测要求,使系统具备开放、灵活、通用和易于升级等优点。A new-type ionospheric oblique backscattering sounding system（IOBSS） based on the pseudo-random noise （PN） phase modulated pulse compression is introduced in this paper, and the design and implement of the main-controller,a core module of the system, is especially presented by empolying the technology of soft- ware radio. The sounding measured results indicate that IOBSS has the characteristics of low sounding power and high distance-resolution, and can obtain the realtime information of ionospheric Doppler and the sounding figure of “Distance-Frequency-Amplitude”. Meanwhlile, the main-controller composed of DSPs and FPGA works well, meets the needs of sounding and makes the IOBSS have the advantages of opening, flexibility, versatility and upgrading.

关 键 词：电离层斜向返回探测系统 软件无线电 数字信号处理芯片 现场可编程门阵列 实验探测 

分 类 号：TN957[电子电信—信号与信息处理]