DEVICE EFFICIENCY FOR ROUGH ESTIMATION OF NOISE-LIKE SIGNAL SYNCHRONIZATION PARAMETERS

Vu Sy Dao
Le Quy Don University of Science and Technology, Hanoi, Vietnam, vusydaomtusi@gmail.com

Svetlana F. Gorgadze
Moscow Technical University of Communications and Informatics, Moscow, Russia, s.f.gorgadze@mtuci.ru

DOI: 10.36724/2664-066X-2025-11-4-25-33

SYNCHROINFO JOURNAL. Volume 11, Number 4 (2025). P. 25-33.

Abstract

The functional diagram of a device for roughly estimating the synchronization parameters of a periodic, noise-like, complex signal using direct spread spectrum is considered. The device is based on a unit for accelerated digital convolution of the received and reference signals. The main criterion for its effectiveness is the duration of the acquisition time for synchronization parameters with the received signal, depending on the signal-to-noise ratio at the receiver input. As shown, this duration is related to the length of the pseudorandom code used to generate the signal, the energy of which must be accumulated in the convolution unit to ensure the specified values of the probabilistic characteristics for correct estimation of the synchronization parameters with predetermined errors.

Keywords:  rough estimation of synchronization parameters, synchronization of noise-like signal with direct spread spectrum, digital convolution of received and reference signals, probabilistic characteristics of synchronization parameter estimation, digital device for convolution of pseudo-random sequencesa

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