Direction finding and suppression of vector-scalar sound signals in shallow water taking into account their correlation and mode structure
- Авторлар: Belov A.I.1, Kuznetsov G.N.1
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Мекемелер:
- Wave Research Center, Prokhorov General Physics Institute
- Шығарылым: Том 62, № 3 (2016)
- Беттер: 319-327
- Бөлім: Ocean Acoustics. Hydroacoustics
- URL: https://journals.rcsi.science/1063-7710/article/view/185698
- DOI: https://doi.org/10.1134/S1063771016030039
- ID: 185698
Дәйексөз келтіру
Аннотация
The correlation of low-frequency sound signals from towed tonal low-frequency sources at the output of the scalar and vector channels is studied in shallow water. The correlation of the scalar field and signal received by a horizontally oriented vector receiver on average is 0.92–0.99; correlation with the signal received by a vertical vector receiver decreases to 0.66–85. When scalar fields or horizontal projections of the vibration velocity vector with application of the aperture synthesis algorithm are used, 3–5 normal waves are isolated; when the vertical component is used, 7–9 modes. It is demonstrated that the high signal correlation ensures direction-finding accuracy and suppression of strongly noise-emitting moving sources by 20–30 dB or more if the cardioid is directed at the source according to the zone of the minimum.
Авторлар туралы
A. Belov
Wave Research Center, Prokhorov General Physics Institute
Хат алмасуға жауапты Автор.
Email: skbmortex@mail.ru
Ресей, ul. Vavilova 38, Moscow, 119991
G. Kuznetsov
Wave Research Center, Prokhorov General Physics Institute
Email: skbmortex@mail.ru
Ресей, ul. Vavilova 38, Moscow, 119991
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