RU2012144838A - METHOD FOR DETERMINING DEPTHS AT REAL TIME WHEN EXAMINING THE BOTTOM RELIEF WITH A SIDE-REVIEW HYDROLOCATOR - Google Patents
METHOD FOR DETERMINING DEPTHS AT REAL TIME WHEN EXAMINING THE BOTTOM RELIEF WITH A SIDE-REVIEW HYDROLOCATOR Download PDFInfo
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- RU2012144838A RU2012144838A RU2012144838/28A RU2012144838A RU2012144838A RU 2012144838 A RU2012144838 A RU 2012144838A RU 2012144838/28 A RU2012144838/28 A RU 2012144838/28A RU 2012144838 A RU2012144838 A RU 2012144838A RU 2012144838 A RU2012144838 A RU 2012144838A
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- depths
- value
- topography
- delay
- measured
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- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Abstract
Способ определения глубин в реальном масштабе времени при обследовании рельефа дна гидролокатором бокового обзора с последующим его восстановлением, включающий измерения времени задержки синфазных сигналов донной реверберации, принимаемых двумя антеннами, разнесенными по вертикали на несколько длин волн упругих колебаний, и разрешение неоднозначности измерений, вычисление глубин, отличающийся тем, что при каждом совпадении фаз интерферирующих сигналов регистрируют мгновенное значение частоты сигнала в нижнем канале, измеряют время запаздывания появления сигнала в верхнем канале с тем же значением мгновенной частоты, измеренное значение времени запаздывания умножают на значение рабочей частоты интерферометра, определяют порядковую нумерацию ряда измерений задержки прихода синфазных сигналов в период каждого зондирования в реальном масштабе времени, глубины вычисляют, соответствующие каждой интерференционной полосе, а при последующем восстановлении рельефа дна по измеренным глубинам выполняют оценку репрезентативности (значимости) критических точек рельефа, путем представления гладкой непрерывной поверхности рельефа дна деревом Кронрода-Риба.A method for determining depths in real time when examining the bottom topography with a side-scan sonar and then recovering it, including measuring the delay time of common-mode bottom reverb signals received by two antennas spaced apart vertically by several wavelengths of elastic vibrations, and resolving the ambiguity of measurements, calculating depths, characterized in that at each phase matching of the interfering signals, the instantaneous value of the signal frequency is recorded in the lower channel, the time is measured I delay the appearance of the signal in the upper channel with the same instantaneous frequency value, the measured value of the delay time is multiplied by the value of the operating frequency of the interferometer, determine the serial numbering of a number of measurements of the arrival delay of common-mode signals during each sounding in real time, the depths are calculated corresponding to each interference band and during the subsequent restoration of the bottom topography from the measured depths, the representativeness (significance) of critical points of the topography is assessed a, by representing a smooth, continuous bottom topography with the Kronrod-Riba tree.
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RU2012144838/28A RU2521127C2 (en) | 2012-10-22 | 2012-10-22 | Method for real-time determination of depth during bottom topography survey with side-scan sonar |
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RU2012144838/28A RU2521127C2 (en) | 2012-10-22 | 2012-10-22 | Method for real-time determination of depth during bottom topography survey with side-scan sonar |
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RU2012144838A true RU2012144838A (en) | 2014-04-27 |
RU2521127C2 RU2521127C2 (en) | 2014-06-27 |
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RU2012144838/28A RU2521127C2 (en) | 2012-10-22 | 2012-10-22 | Method for real-time determination of depth during bottom topography survey with side-scan sonar |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114627367A (en) * | 2022-05-17 | 2022-06-14 | 国家海洋局北海海洋技术保障中心 | Sea bottom line detection method for side-scan sonar image |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2272303C1 (en) * | 2004-10-25 | 2006-03-20 | Николай Аркадьевич Нестеров | Method for determining depths of body of water and device for realization of said method |
RU2326408C1 (en) * | 2006-10-02 | 2008-06-10 | Виктор Алексеевич Авдонюшкин | Method of reconstruction of sea ground terrain at discrete depth measurements by means of hydroacoustics and device for its implementation |
RU2434246C1 (en) * | 2010-03-16 | 2011-11-20 | Сергей Борисович Курсин | Method of surveying bottom topography of water bodies and apparatus for realising said method |
RU2429507C1 (en) * | 2010-03-16 | 2011-09-20 | Сергей Петрович Алексеев | Method of reconstructing sea bottom relief in depth measurement by hydroacoustic means and device to this end |
RU2461845C1 (en) * | 2011-04-28 | 2012-09-20 | Российская Федерация, От Имени Которой Выступает Министерство Промышленности И Торговли Российской Федерации | Hydroacoustic system for imaging underwater space |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114627367A (en) * | 2022-05-17 | 2022-06-14 | 国家海洋局北海海洋技术保障中心 | Sea bottom line detection method for side-scan sonar image |
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RU2521127C2 (en) | 2014-06-27 |
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Effective date: 20171023 |