CA2036124A1 - Hydroacoustic ranging system - Google Patents
Hydroacoustic ranging systemInfo
- Publication number
- CA2036124A1 CA2036124A1 CA 2036124 CA2036124A CA2036124A1 CA 2036124 A1 CA2036124 A1 CA 2036124A1 CA 2036124 CA2036124 CA 2036124 CA 2036124 A CA2036124 A CA 2036124A CA 2036124 A1 CA2036124 A1 CA 2036124A1
- Authority
- CA
- Canada
- Prior art keywords
- transducers
- pulse
- hydroacoustic
- carrier frequencies
- accurately
- 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.)
- Granted
Links
Landscapes
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Geophysics And Detection Of Objects (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
Digital processing systems and methods of hydroacoustic pulse communications in offshore seismic exploration systems provide more efficient surveys with less critical equipment. Thus hydroacoustic transceiver transducers towed in a set of streamers behind a vessel are accurately positioned under variable operation conditions with a geodetic reference point for more efficiently and accurately monitoring echo points for seismically identifying underwater formations. Spacings between transducers are found by calculating from pulse arrival times the transit times of hydroacoustic pulses. Predetermined pulse shapes and carrier frequencies above 40kHz are accurately determined upon receipt by digitally sampling waveshapes to determine shape and timing the reception of identified pulse shapes at transducers which are transmitted from other transducers for computing separations between sending and receiving transducers. Pulse transit time averaging avoids precise synchronization for simpler apparatus. The carrier frequencies and associated high pass filters for received pulses eliminate hydroacoustic noise. The digital pulse sampling and timing techniques simplify communications with associated data processing systems for seismic analysis and provide compact on-location electronic systems coupled to the transducers.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/482,657 US5031159A (en) | 1990-02-21 | 1990-02-21 | Hydroacoustic ranging system |
| US07/482,657 | 1990-02-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2036124A1 true CA2036124A1 (en) | 1991-08-22 |
| CA2036124C CA2036124C (en) | 2000-05-02 |
Family
ID=23916913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2036124 Expired - Lifetime CA2036124C (en) | 1990-02-21 | 1991-02-11 | Hydroacoustic ranging system |
Country Status (5)
| Country | Link |
|---|---|
| CA (1) | CA2036124C (en) |
| DE (1) | DE69125747T2 (en) |
| FI (1) | FI103612B (en) |
| NO (1) | NO302720B1 (en) |
| NZ (1) | NZ237024A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111033296A (en) * | 2017-04-11 | 2020-04-17 | 波特兰州立大学 | Wideband acoustic localization with accurate calibration and joint parameter estimation |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SG137726A1 (en) * | 2006-06-06 | 2007-12-28 | Sony Corp | A method and apparatus for measuring distance between a target and a receiver in a ranging system |
-
1991
- 1991-02-05 NZ NZ23702491A patent/NZ237024A/en unknown
- 1991-02-08 DE DE1991625747 patent/DE69125747T2/en not_active Expired - Lifetime
- 1991-02-11 CA CA 2036124 patent/CA2036124C/en not_active Expired - Lifetime
- 1991-02-19 NO NO910659A patent/NO302720B1/en not_active IP Right Cessation
- 1991-02-21 FI FI910838A patent/FI103612B/en active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111033296A (en) * | 2017-04-11 | 2020-04-17 | 波特兰州立大学 | Wideband acoustic localization with accurate calibration and joint parameter estimation |
Also Published As
| Publication number | Publication date |
|---|---|
| FI103612B1 (en) | 1999-07-30 |
| FI910838A (en) | 1991-08-22 |
| FI910838A0 (en) | 1991-02-21 |
| DE69125747T2 (en) | 1997-10-23 |
| DE69125747D1 (en) | 1997-05-28 |
| NZ237024A (en) | 1993-05-26 |
| NO302720B1 (en) | 1998-04-14 |
| NO910659D0 (en) | 1991-02-19 |
| NO910659L (en) | 1991-08-22 |
| CA2036124C (en) | 2000-05-02 |
| FI103612B (en) | 1999-07-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKEX | Expiry |