A.V. Zamyatin, A.V. Vishnekov

FSBEI HE “MIREA — Russian technological university”, Moscow, Russia
zamyatin@mirea.ru,
vishnekoov@mirea.ru

Al’manac of Modern Metrology № 2 (34) 2023, pages 19–24

Abstract. This article discusses the features of noise-resistant transmission of phase infor­mation for various measurements in the hydrosphere.In this case, for the possibility of noise-resistant transmission of the signal phase in such an environment, it is necessary to lower the signal emission frequency, which is due to strong fluc­tuations. This entails an increase in the geometric dimensions of the emitter so that it is commen­surate with the wavelength. The proposed technique makes it possible to transmit phase information at two sufficiently high frequencies, which differ very little from each other. These frequencies are emitted in the form of impulse bursts, which are correlated with each other and alternate in time. In accordance with this methodology, phase measurements will be equivalent to measurements that are carried out at a frequency difference that is much lower than the signals emitted into the hydrosphere. This method uses a two-channel phase meter to process and extract the necessary phase information.

Key words: frequency, phase, hydrosphere, technique, measurement, information, oscillations, transmitter, emitter, local oscillator, channel.

Full texts of articles are available only in Russian in printed issues of the magazine.