基于PXI总线的电离层探测系统设计

Design of ionospheric sounding system using PXI bus

为满足短波频率管理系统对电离层斜向返回探测系统提出的可搬移、小体积等需求,设计了一种新型单站式WIOBSS(武汉电离层斜向返回探测系统).该系统采用高性能的PXI(外围组件互联总线在仪器领域的扩展)总线作为系统总线,设计成具有模块化、标准化、小体积和低成本等特点的车载式系统.同时,为使WIOBSS中各模块具备即插即用的性能,利用DriverStudio工具开发了PXI接口驱动程序.实验结果表明,在不包括天线和功率放大器的情况下,WIOBSS的尺寸约为177.8 mm×431.8 mm×457.2 mm.而且在实际探测中,WIOBSS清晰地获得了1100 km范围内包含有电离层斜向返回探测信息和电离层垂直探测信息的扫频电离图和多普勒图,从而为短波频率管理系统开拓了一种新的探测手段.

Considering the requirements of portable,small size,and so on,which put forward for ionospheric oblique backscattering sounding system by the HF（high frequency）,a new kind of monostatic WIOBSS（Wuhan ionospheric oblique backscattering sounding system） was developed.This system adopted high performance PXI（peripheral component interconnect extensions for instruments） bus as the system bus,and was designed as a vehicular system which had the characters of modularization,standardization,small size,low cost.At the same time, the PXI interface driver was developed with DriverStudio to achieve the plug-and-play function of various modules in WIOBSS. The experimental results demonstrate that without the antenna and the amplifier, the size of WIOBSS was 177.8 mm×431.8 mm×457.2 mm. Moreover, the ionogram and Dopplionogram, which included the information of ionospheric oblique backscattering sounding and ionospheric vertical sounding at the range of 1 100 km, were clearly achieved by WIOBSS. Therefore, a new kind of equipment was provided for HF frequency management system.