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Development of backscatter sounding single-site location system

Development of backscatter sounding single-site location system

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Unlike the present single-site location systems, the background ionospheric parameters of which are obtained by the vertical-incident sounding or the oblique-incident sounding, a system based on the technique of ionospheric backscatter sounding which is able to monitor a large region of the ionosphere at a single site is introduced in this study. The system obtains the quasi-real-time ionospheric data by the auto-scaled backscatter ionograms and the parametric inversion. A numeric ray-tracing method, taking into consideration of the gradients of the electron density, has been improved to calculate the ground range between the signal and the receiver of the system using the two-dimensional electron density profiles. By integrating the ionospheric sounding module, the direction-finding module and the single-site location module together, the system outputs the geo-location of the transmitter automatically at one station. To validate the single-site location system, experiments are carried out and show the effectiveness of the estimating of the signal geo-locations.

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