E.V. Valuev - Engineer, NII RET BMSTU, Moscow. E-mail: valuevevg@yandex.ru

In this work the problem of detection and estimation of spectral distortion of GNSS signals is studied. To solve this problem quadric statistics is introduced. The limits of applicability of the criterion from standpoint of required energy is determined. Polynomial model of amplitude and phase distortion of spectrum is used for spectral estimation. Navigation signals, recorded on the radio telescope RT 7.5, is analyzed.

 

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