Article

Article title METHOD OF EXPANDING THE RADIATION PATTERN IN A HYDROACOUSTIC PARAMETRIC ANTENNA
Authors G. V. Soldatov, V. Yu. Neruk, M. V. Laguta
Section SECTION I. METHODS AND MEANS OF ACOUSTIC MONITORING
Month, Year 06, 2018 @en
Index UDC 534.2
DOI
Abstract The purpose of this work is to demonstrate the possibility of expanding the radiation pattern in a hydroacoustic parametric antenna using an intra-pulse scan with an acoustic beam. Experience in the development and testing of parametric antennas has shown that the most efficient generation of differential frequency waves can be achieved by emitting narrow beams a few degrees wide at the maximum power of the pump antenna. A further increase in the width of the radiation pattern at the same operating frequencies leads to a drop in the level of the pump signals and a decrease in the length of the nonlinear interaction zone, and therefore to a significant decrease in the signal of the difference frequency. It is possible to expand the radiation pattern, while maintaining the size of the radiating surface of the antenna and the level of the emitted signal, using intrapulse scanning. Intra-pulse scanning was performed by sequential radiation of short pulses with rotation of the antenna pattern in the scanning plane. To conduct experimental studies, a hydroacoustic parametric radiating system was developed, consisting of a multichannel pumping antenna and power amplifier-generator modules. Experimental studies were carried out on a unique scientific installation "Imitation-natural hydroacoustic complex" SFU. Measurements were made of the parametric antenna radiation patterns at the difference frequency. Using the proposed method, it was possible to increase the width of the main maximum of a parametric antenna by about 2 times. The work shows the change in the envelope of the emitted signal, depending on the direction of radiation. Experimental studies have shown the fundamental possibility of expanding the radiation pattern of a parametric antenna with the help of intrapulse scanning with an acoustic beam at a constant size of the radiated surface of the pump antenna.

Download PDF

Keywords Nonlinear acoustics; parametric antenna; acoustic measurements; radiation pattern; parametric profiler.
References 1. Ofitsial'nyy sayt OOO «Nelaks» [Official site OOO "Relax"]. Available at: https://nelaks.ru/produkciya/gals-p-150 (accessed 12 October 2018).
2. Ofitsial'nyy sayt Innomar Ltd [Official site Innomar Ltd]. Available at: https://www.innomar.com/index.php (accessed 12 October 2018).
3. Novikov B.K., Rudenko O.V., Timoshenko V.I. Nelineynaya gidroakustika [Nonlinear underwater acoustics]. Leningrad: Sudostroenie, 1981, 264 p.
4. Novikov B.K., Timoshenko V.I. Parametricheskie antenny v gidrolokatsii [Parametric antennas in sonar]. Leningrad: Sudostroenie, 1989, 256 p.
5. Voronin V.A., Tarasov S.P., Timoshenko V.I. Gidroakusticheskie parametricheskie sistemy [Parametric sonar system]. Rostov-on-Don: Rostizdat, 2004, 400 p.
6. Voronin V.A., Kuznetsov V.P., Mordvinov B.G., Tarasov S.P., Timoshenko V.I. Nelineynye i parametricheskie protsessy v akustike okeana [Nonlinear and parametric processes in ocean acoustics]. Rostov-on-Don: Rostizdat, 2007, 448 p.
7. Voronin V.A., Tarasov S.P., Pivnev P.P. i dr. Ekologicheskiy monitoring opor mostov s ispol'zovaniem sredstv gidroakustiki [Environmental monitoring of the bridges using the means of hydroacoustics], Izvestiya YuFU. Tekhnicheskie nauki [Izvestiya SFedU. Engineering Sciences], 2011, No. 12 (125), pp. 94-96.
8. Zagray N.P. Ekologicheskiy monitoring vodnoy sredy pri akusticheskom vzaimodeystvii akusticheskikh voln [Ecological monitoring of water environment in acoustic interactions of acoustic waves], Izvestiya YuFU. Tekhnicheskie nauki [Izvestiya SFedU. Engineering Sciences], 2017, No. 8 (193), pp. 151-162.
9. Soldatov G.V., Tarasov S.P., Kaevitser V.I., i dr. Opredeleniya skorosti zvuka v donnykh otlozheniyakh pri ekologicheskom monitoringe [Determination of sound velocity in bottom sediments during environmental monitoring], Inzhenernyy vestnik Dona [Don's engineering Bulletin], 2015, No. 4. Available at: ivdon.ru/ru/magazine/archive/n4p2y2015/4380.
10. Tarasov S.P., Voronin V.A., Soldatov G.V. K voprosu opredeleniya parametrov morskikh osadkov v tselyakh ekologicheskogo monitoringa [On the issue of determining the parameters of marine precipitation for environmental monitoring], Sb. po rezul'tatam XV zaochnoy nauchnoy konferentsii “Research Journal of International Studies” [Сборник по результатам XV заочной научной конференции “Research Journal of International Studies”]. Ekaterinburg: Izd-vo OOO «Impleks», 2013, No. 13, pp. 17-21.
11. Pol'shin V.V., Tarasov S.P., Pivnev P.P., Soldatov G.V. Rezul'taty seysmoakusticheskogo profilirovaniya dna taganrogskogo zaliva Azovskogo morya [Results of seismic-acoustic profiling of the bottom of the Taganrog Bay of the Azov sea], VIII vserossiyskoe soveshchanie po izucheniyu chetvertichnogo perioda «Fundamental'nye problemy kvartera, itogi izucheniya i osnovnye napravleniya dal'neyshikh issledovaniy» [VIII all-Russian meeting on the study of the Quaternary period "fundamental problems of the quarter, the results of the study and the main directions of further research"]. Rostov-on-Don: Izd-vo YuNTS RAN, 2013, 764 p.
12. Soldatov G.V., Pivnev P.P., Tarasov S.P. Metody opredeleniya akusticheskikh svoystv i struktury morskogo dna s ispol'zovaniem parametricheskoy antenny [Methods for determining the acoustic properties and structure of the seabed using a parametric antenna], Trudy XI Vserossiyskoy konferentsii «Prikladnye tekhnologii gidroakustiki i gidrofiziki» [Proceedings of the XI all-Russian conference "Applied technologies of hydroacoustics and Hydrophysics"]. Saint Petersburg, 2012, pp. 416-419.
13. Grażyna Grelowska, Eugeniusz Kozaczka, Sławomir Kozaczka, Wojciech Szymczak. Gdansk Bay sea bed sounding and classification of its results, Polish maritime research, 2013, No. 3 (79), Vol. 20, pp. 45-50.
14. Vsevolod Yutsis, Konstantin Krivosheya, Oleg Levchenko, Jens Lowag, Héctor de León Gómez and Antonio Tamez Ponce. Bottom topography, recent sedimentation and water volume of the Cerro Prieto Dam, NE Mexico, Geofísica internacional, 2014, Vol. 53-1, pp. 27-38.
15. Evangelos Alevizos, Mirjam Snellen, Dick Simons, Kerstin Siemes, Jens Greinert. Multi-angle backscatter classification and sub-bottom profiling for improved seafloor characterization, Mar Geophys Res., 2018, Vol. 39, pp. 289-306.
16. Roginskiy K.A., Dmitrevskiy N.N., Anan'ev R.A., Levchenko O.V., Meluzov A.A., Mutovkin A.D. Seysmoakusticheskie issledovaniya v rayone Goluboy bukhty (CHernoe more) na nauchno-issledovatel'skom sudne “Ashamba” [Seismoacoustic studies in the area of the Blue Bay (Black sea) on the research vessel “Ashamba”], Okeanologiya [Oceanology], 2014, Vol. 54, No. 5, pp. 712-714.
17. Ridha Fezzani, Laurent Berger. Analysis of calibrated seafloor backscatter for habitat classification methodology and case study of 158 spots in the Bay of Biscay and Celtic Sea, Marine Geophysical Research, 2018, Vol. 39, pp. 169-181.
18. Kerstin Schrottke, Marius Becker, Alexander Bartholomä, Burghard W. Flemming, Dierk Hebbeln. Fluid mud dynamics in the Weser estuary turbidity zone tracked by high-resolution side-scan sonar and parametric sub-bottom profiler, Geo-Mar Lett., 2006, Vol. 26, pp. 185-198.
19. Jens Wunderlich, Gert Wendt and Sabine Muller. High-resolution echo-sounding and detection of embedded archaeological objects with nonlinear sub-bottom profilers, Marine Geophysical Researches, 2005, Vol. 26, pp. 123-133.
20. Opisanie UNU «INGAK» [Description UNA "INGAC"]. Available at: http://www.ckp-rf.ru/usu/200998/ (accessed 4 December 2018).
21. Kolesnikov A.E. Akusticheskie izmereniya [Acoustic measurements]. Leningrad: Sudostroenie, 1983, 257 p.

Comments are closed.