RU2219563C2 - Method establishing direction of arrival of echo signal ( variants ) - Google Patents
Method establishing direction of arrival of echo signal ( variants ) Download PDFInfo
- Publication number
- RU2219563C2 RU2219563C2 RU2001100170/09A RU2001100170A RU2219563C2 RU 2219563 C2 RU2219563 C2 RU 2219563C2 RU 2001100170/09 A RU2001100170/09 A RU 2001100170/09A RU 2001100170 A RU2001100170 A RU 2001100170A RU 2219563 C2 RU2219563 C2 RU 2219563C2
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- echo signal
- frequency
- maximum
- arrival
- additional
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- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Abstract
FIELD: underwater acoustics, sound fixing and ranging, detection of active objects. SUBSTANCE: there are proposed several variants of implementation of method. Emission under pulse mode and signal reception from direction of major maximum of radiation pattern of receiving-transmitting, multielement, equidistant antenna, emission and reception of signals are carried out in proper frequency range. One or two additional maxima positioned in symmetry with reference to major maximum are formed in same frequency range in radiation pattern. If echo signal is received, direction of arrival of echo signal is found as direction of major maximum, if it is not received as direction of additional maximum. To define direction more exactly in presence of two additional maxima on altered frequency radiation pattern is turned till one of additional maxima coincides with initial, radiation is carried out on altered frequency and if echo signal is fixed this direction is assumed to be direction of arrival of echo signal, in its absence- direction of another additional maximum on initial frequency is considered as proper direction. Radiation and reception of signals are conducted in turn or simultaneously on two different frequencies fa, fb. If echo signal is received on both frequencies direction of arrival of echo signal is defined as direction of major maximum, if it received on one frequency-as direction of additional maximum on given first frequency. To define direction more exactly in presence of two additional maxima radiation pattern is turned on second frequency till one additional maximum coincides with direction of additional maximum of first frequency on which signal was received and radiation is emitted. When echo signal is received on second frequency this direction is defined as direction of arrival of echo signal, in absence of echo signal direction of arrival of another additional maximum on first frequency is considered to be direction of arrival of echo signal. EFFECT: increased precision and capability of direction finding, expansion of frequency band by factor of two and more towards higher frequencies in which range direction of arrival of echo signal is established unambiguously when wave dimensions between antenna elements are same. 4 cl, 4 dwg
Description
Текст описания в факсимильном виде (см. графическую часть) Тб Description text in facsimile form (see graphic part) Tb
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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RU2001100170/09A RU2219563C2 (en) | 2001-01-03 | 2001-01-03 | Method establishing direction of arrival of echo signal ( variants ) |
Applications Claiming Priority (1)
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RU2001100170/09A RU2219563C2 (en) | 2001-01-03 | 2001-01-03 | Method establishing direction of arrival of echo signal ( variants ) |
Publications (2)
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RU2001100170A RU2001100170A (en) | 2003-01-10 |
RU2219563C2 true RU2219563C2 (en) | 2003-12-20 |
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RU2001100170/09A RU2219563C2 (en) | 2001-01-03 | 2001-01-03 | Method establishing direction of arrival of echo signal ( variants ) |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104777450A (en) * | 2015-04-29 | 2015-07-15 | 西安电子科技大学 | Two-stage MUSIC microphone array direction finding method |
RU2577561C1 (en) * | 2015-01-15 | 2016-03-20 | Федеральное государственное бюджетное учреждение науки Тихоокеанский океанологический институт им. В.И. Ильичева Дальневосточного отделения Российской академии наук (ТОИ ДВО РАН) | Method of measuring pulse response function structure in time in heterogeneous environment |
RU2655683C1 (en) * | 2017-06-16 | 2018-05-29 | Акционерное общество "Акустический институт имени академика Н.Н. Андреева" | Method of definition of the structure of the hydroacoustic field of technogenic submarine objects from vibrations of the enclosure under the action of dynamic forces |
RU2655680C1 (en) * | 2017-06-16 | 2018-05-29 | Акционерное общество "Акустический институт имени академика Н.Н. Андреева" | Method for definition of the structure of the hydroacoustic field of technogenic submarine objects from air noise inside the casing |
RU2659891C1 (en) * | 2017-06-16 | 2018-07-04 | Акционерное общество "Акустический институт имени академика Н.Н. Андреева" | Method for determining the structure of the hydroacoustic field of technogenic submarine objects from body vibrations |
RU2726312C1 (en) * | 2019-08-16 | 2020-07-13 | Акционерное Общество "Концерн "Океанприбор" | Method of displaying hydrolocation information |
-
2001
- 2001-01-03 RU RU2001100170/09A patent/RU2219563C2/en not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
МИТЬКО В.Б. и др. Гидроакустические средства связи и наблюдения. - Л.: Судостроение, 1982, с.33, 34. * |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2577561C1 (en) * | 2015-01-15 | 2016-03-20 | Федеральное государственное бюджетное учреждение науки Тихоокеанский океанологический институт им. В.И. Ильичева Дальневосточного отделения Российской академии наук (ТОИ ДВО РАН) | Method of measuring pulse response function structure in time in heterogeneous environment |
CN104777450A (en) * | 2015-04-29 | 2015-07-15 | 西安电子科技大学 | Two-stage MUSIC microphone array direction finding method |
RU2655683C1 (en) * | 2017-06-16 | 2018-05-29 | Акционерное общество "Акустический институт имени академика Н.Н. Андреева" | Method of definition of the structure of the hydroacoustic field of technogenic submarine objects from vibrations of the enclosure under the action of dynamic forces |
RU2655680C1 (en) * | 2017-06-16 | 2018-05-29 | Акционерное общество "Акустический институт имени академика Н.Н. Андреева" | Method for definition of the structure of the hydroacoustic field of technogenic submarine objects from air noise inside the casing |
RU2659891C1 (en) * | 2017-06-16 | 2018-07-04 | Акционерное общество "Акустический институт имени академика Н.Н. Андреева" | Method for determining the structure of the hydroacoustic field of technogenic submarine objects from body vibrations |
RU2726312C1 (en) * | 2019-08-16 | 2020-07-13 | Акционерное Общество "Концерн "Океанприбор" | Method of displaying hydrolocation information |
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Effective date: 20060104 |