A Method of Evaluating the g-sensitivity of Quartz Oscillators in GNSS Receivers

Автор: Kurynin R.V.
Сборник: 2019 Systems of Signal Synchronization, Generating and Processing in Telecommunications (SYNCHROINFO)
Год издания: 2019
Место издания: IEEE Russia
Первая страница: 1
Последняя страница: 5
DOI: 10.1109/SYNCHROINFO.2019.8814034
Аннотация: Modern global navigation satellite systems (GNSS) receivers use temperature-compensated crystal oscillators (TCXO) as generators of reference frequency. One of the parameters of quartz oscillators is its stability to output frequency when oscillators are subject to acceleration and vibrations. Such a stability is assessed by g-sensitivity value. Relatively high g-sensitivity of quartz oscillators can result in large tracking errors within circuits of GNSS receivers operating in hard vibrational-dynamic conditions, up to loss of tracking which negatively affect functional capacities of GNSS receivers. The current paper describes a method of estimating g-sensitivity of TCXO mounted on GNSS receiver printed circuit board (PCB). Experimental results have proved the advantage of this method over other known methods of g-sensitivity assessment for TCXO used in GNSS receivers.
Добавил в систему: Курынин Роман Валерьевич

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