Amplitude calibration of an acoustic backscattered signal from a bottom-moored ADCP based on long-term measurement series
- Авторлар: Piotukh V.B.1, Zatsepin A.G.1, Kuklev S.B.2
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Мекемелер:
- Shirshov Institute of Oceanology
- Southern Branch, Shirshov Institute of Oceanology
- Шығарылым: Том 57, № 3 (2017)
- Беттер: 455-464
- Бөлім: Instruments and Methods
- URL: https://journals.rcsi.science/0001-4370/article/view/149466
- DOI: https://doi.org/10.1134/S0001437017020163
- ID: 149466
Дәйексөз келтіру
Аннотация
A possible approach to, and preliminary results of, amplitude calibration of acoustic signals backscattered from an ADCP moored at the bottom of the near-shelf zone of the Black Sea is considered. The aim of this work is to obtain vertical profiles of acoustic scattering signal levels, showing the real characteristics of the volume content of suspended sediments in sea water in units of conventional acoustic turbidity for a given signal frequency. In this case, the assumption about the intervals of maximum acoustic transparency and vertical homogeneity of the marine environment in long-term series of ADCP measurements is used. According to this hypothesis, the intervals of the least values of acoustic backscattered signals are detected, an empirical transfer function of the ADCP reception path is constructed, and it is calibrated. Normalized sets of acoustic backscattered signals relative to a signal from a level of conventionally clear water are obtained. New features in the behavior of vertical profiles of an acoustic echo-signal are revealed due to the calibration. The results of this work will be used in subsequent analysis of the vertical and time variations in suspended sediment content in the near-shelf zone of the Black Sea.
Авторлар туралы
V. Piotukh
Shirshov Institute of Oceanology
Хат алмасуға жауапты Автор.
Email: vbp@ocean.ru
Ресей, Moscow
A. Zatsepin
Shirshov Institute of Oceanology
Email: vbp@ocean.ru
Ресей, Moscow
S. Kuklev
Southern Branch, Shirshov Institute of Oceanology
Email: vbp@ocean.ru
Ресей, Gelendzhik
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