Vol. 9, issue 07, article # 15

Aldoshina O. I., Mamaeva A. V., Fabrikov A. V. Estimation of time lags in location of radiation sources on the Earth's surface from satellite: the pseudozero point method. // Atmospheric and oceanic optics. 1996. V. 9. No. 07. P. 640-644.    PDF
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Abstract:

The method of time delay estimation is described as applied to the problem on detecting ground-based pulsed sources from satellite. The method provides for separate processing of signals coming to different spacecrafts comprising the satellite network. The method is based on detecting a conditional bench-mark (pseudozero point), which is artificially constructed by a computer from the finite-size set of noisy sampled values of the signal function and uniquely determined by these values. Theoretical analysis and the results of numerical experiments aimed at checking the accuracy characteristics of this method show that the method may be useful in the applications where tough restrictions are imposed on the bulk of information transmitted via the communication channels.