An advanced architecture design for a high performance oblique backscattering ionosonde - WIOBSS

WIOBSS is a new kind of the full phase-parameter, digital Ionospheric Oblique Backscattering Sounding System that has been developed by Ionosphere Lab in Wuhan University for Ionospheric monitoring and research. It bases on the principle of pseudo-random noise (PN) phase modulated pulse compression and employs long coded pulses, a high PRF, and coherent integration to achieve adequate sensitivity while operating at lower power (less than 800 watts). By means of WIOBSS system, we can get a lot of useful information, such as the dynamic change character of the Ionosphere, Doppler frequency shift and spread about the channel. According to the character of WIOBSS, this paper provides a discussion on its architecture design in detail. The experimental results demonstrate that this architecture is computer controlled by software, designed as VXI bus-based modelled radar digital signal processing system, and its flexibility, versatility, upgrading can fully satisfy the demands of WIOBSS.