ITM Web Conf.
Volume 30, 201929th International Crimean Conference “Microwave & Telecommunication Technology” (CriMiCo’2019)
|Number of page(s)||10|
|Section||Microwave Communication, Broadcasting and Navigation Systems (3)|
|Published online||27 November 2019|
Methods for mutual time delay estimation of wideband signals based on nonlinear digital filtering
Lobachevsky State University of Nizhny Novgorod, Physical Department, 603950 Gagarin ave. 23, Nizhny Novgorod, Russian Federation
* Corresponding author: firstname.lastname@example.org
Methods for mutual time delay estimation of wideband signals propagating in satellite communication systems are proposed. The signals are propagated in different channels and received with low signal-to-noise ratio. A characteristic feature of satellite channel is the presence of the Doppler Effect, which leads to a shift and scaling the signal spectrums. The proposed approaches are based on the separation of narrow-band channels from the studied signals, using non-linear digital filtering algorithms in each channel, and subsequent optimal (correlation) processing. The accuracy of the proposed methods and the reliability of the determination of time delay are investigated.
© The Authors, published by EDP Sciences, 2019
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