DE2905898C2 - - Google Patents
Info
- Publication number
- DE2905898C2 DE2905898C2 DE2905898A DE2905898A DE2905898C2 DE 2905898 C2 DE2905898 C2 DE 2905898C2 DE 2905898 A DE2905898 A DE 2905898A DE 2905898 A DE2905898 A DE 2905898A DE 2905898 C2 DE2905898 C2 DE 2905898C2
- Authority
- DE
- Germany
- Prior art keywords
- frequency
- channels
- signals
- frequencies
- low
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000002592 echocardiography Methods 0.000 claims description 18
- 230000005540 biological transmission Effects 0.000 claims description 14
- 230000015572 biosynthetic process Effects 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 4
- 238000005070 sampling Methods 0.000 claims description 4
- 230000003321 amplification Effects 0.000 claims description 3
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 3
- 238000012546 transfer Methods 0.000 claims description 2
- 230000000903 blocking effect Effects 0.000 claims 1
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 238000003786 synthesis reaction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 16
- 230000005855 radiation Effects 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000009021 linear effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- 102100038520 Calcitonin receptor Human genes 0.000 description 1
- 101710178048 Calcitonin receptor Proteins 0.000 description 1
- 241000251729 Elasmobranchii Species 0.000 description 1
- 208000032370 Secondary transmission Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000009022 nonlinear effect Effects 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 238000013139 quantization Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41G—WEAPON SIGHTS; AIMING
- F41G7/00—Direction control systems for self-propelled missiles
- F41G7/20—Direction control systems for self-propelled missiles based on continuous observation of target position
- F41G7/22—Homing guidance systems
- F41G7/2273—Homing guidance systems characterised by the type of waves
- F41G7/228—Homing guidance systems characterised by the type of waves using acoustic waves, e.g. for torpedoes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/18—Methods or devices for transmitting, conducting or directing sound
- G10K11/26—Sound-focusing or directing, e.g. scanning
- G10K11/34—Sound-focusing or directing, e.g. scanning using electrical steering of transducer arrays, e.g. beam steering
- G10K11/341—Circuits therefor
- G10K11/343—Circuits therefor using frequency variation or different frequencies
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/024—Mixtures
- G01N2291/02491—Materials with nonlinear acoustic properties
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7804526A FR2589248B1 (fr) | 1978-02-17 | 1978-02-17 | Amelioration des systemes d'autoguidage acoustique de vehicules sous-marins |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE2905898A1 DE2905898A1 (de) | 1987-09-10 |
| DE2905898C2 true DE2905898C2 (en, 2012) | 1989-05-03 |
Family
ID=9204718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19792905898 Granted DE2905898A1 (de) | 1978-02-17 | 1979-02-16 | Selbstlenkanordnung |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US4712201A (en, 2012) |
| DE (1) | DE2905898A1 (en, 2012) |
| FR (1) | FR2589248B1 (en, 2012) |
| IT (1) | IT1186524B (en, 2012) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19931386A1 (de) * | 1999-07-07 | 2001-02-01 | Innomar Technologie Gmbh | Verfahren und Anordnung zum Empfang von Signalen bei parametrischer Sendung zur Echolotung des Bodens, von Sedimentschichten und von Objekten am und im Boden sowie zur Unterwassernachrichtenübertragung |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2656971B1 (fr) * | 1990-01-05 | 1992-09-04 | Thomson Csf | Hydrophone basse frequence et antenne sonar comportant de tels hydrophones. |
| US5469403A (en) * | 1992-08-11 | 1995-11-21 | Board Of Regents Of The University Of Washington | Digital sonar system |
| FR2776161B1 (fr) | 1998-03-10 | 2000-05-26 | Thomson Marconi Sonar Sas | Antenne d'emission acoustique annulaire demontable |
| US6393883B1 (en) | 2000-03-02 | 2002-05-28 | Royal Lock Corp. | Tubular keyed cam lock with screw attachment |
| SE523115C2 (sv) * | 2001-07-30 | 2004-03-30 | Martin Pehrson | Autonomt system för undervattensinspektion |
| CN100383486C (zh) * | 2003-10-21 | 2008-04-23 | 中国计量学院 | 一种声纳制导鱼雷（水中导弹）系统及其使用方法 |
| US8442709B2 (en) * | 2009-12-11 | 2013-05-14 | Lockheed Martin Corporation | Underwater investigation system providing unmanned underwater vehicle (UUV) guidance based upon updated position state estimates and related methods |
| DE102011079706A1 (de) * | 2011-07-25 | 2013-01-31 | Robert Bosch Gmbh | Verfahren zur Bestimmung der Größe und der Position von Objekten |
| US9523770B1 (en) * | 2015-09-28 | 2016-12-20 | The United States Of America As Represented By The Secretary Of The Navy | Multiple frequency parametric sonar |
| US10605913B2 (en) * | 2015-10-29 | 2020-03-31 | Garmin Switzerland Gmbh | Sonar noise interference rejection |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3723954A (en) * | 1956-08-24 | 1973-03-27 | Us Navy | Reverberation filter system |
| FR1579451A (en, 2012) * | 1959-06-16 | 1969-08-29 | ||
| FR1427607A (fr) * | 1961-09-26 | 1966-02-11 | Csf | Perfectionnements aux antennes plaques pour ondes sonores |
| US3613069A (en) * | 1969-09-22 | 1971-10-12 | Gen Dynamics Corp | Sonar system |
| US3786405A (en) * | 1971-02-01 | 1974-01-15 | Raytheon Co | System for low-frequency transmission of radiant energy |
| GB1360901A (en) * | 1971-02-01 | 1974-07-24 | Raytheon Co | Communication system utilizing a dispersive transmission medium |
| US3824531A (en) * | 1973-01-15 | 1974-07-16 | Raytheon Co | Plural beam steering system |
| US3864666A (en) * | 1973-06-12 | 1975-02-04 | Westinghouse Electric Corp | Directional sonar apparatus |
| US3924259A (en) * | 1974-05-15 | 1975-12-02 | Raytheon Co | Array of multicellular transducers |
-
1978
- 1978-02-17 FR FR7804526A patent/FR2589248B1/fr not_active Expired
-
1979
- 1979-02-16 US US06/022,115 patent/US4712201A/en not_active Expired - Lifetime
- 1979-02-16 DE DE19792905898 patent/DE2905898A1/de active Granted
- 1979-02-16 IT IT48029/79A patent/IT1186524B/it active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19931386A1 (de) * | 1999-07-07 | 2001-02-01 | Innomar Technologie Gmbh | Verfahren und Anordnung zum Empfang von Signalen bei parametrischer Sendung zur Echolotung des Bodens, von Sedimentschichten und von Objekten am und im Boden sowie zur Unterwassernachrichtenübertragung |
| DE19931386C2 (de) * | 1999-07-07 | 2003-10-09 | Innomar Technologie Gmbh | Anordnung zum Empfang von Signalen bei parametrischer Sendung zur Echolotung des Bodens, von Sedimentschichten und von Objekten am und im Boden sowie zur Unterwassernachrichtenübertragung |
Also Published As
| Publication number | Publication date |
|---|---|
| IT7948029A0 (it) | 1979-02-16 |
| DE2905898A1 (de) | 1987-09-10 |
| US4712201A (en) | 1987-12-08 |
| FR2589248A1 (fr) | 1987-04-30 |
| FR2589248B1 (fr) | 1988-01-22 |
| IT1186524B (it) | 1987-11-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OP8 | Request for examination as to paragraph 44 patent law | ||
| 8125 | Change of the main classification |
Ipc: G01S 15/66 |
|
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition | ||
| 8339 | Ceased/non-payment of the annual fee |