SU1840603A1 - Method for measuring inherent underwater noise emission and a noise meter - Google Patents
Method for measuring inherent underwater noise emission and a noise meterInfo
- Publication number
- SU1840603A1 SU1840603A1 SU4508429/28A SU4508429A SU1840603A1 SU 1840603 A1 SU1840603 A1 SU 1840603A1 SU 4508429/28 A SU4508429/28 A SU 4508429/28A SU 4508429 A SU4508429 A SU 4508429A SU 1840603 A1 SU1840603 A1 SU 1840603A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- energy spectrum
- interferences
- flexible extended
- towed antenna
- emission
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 2
- 238000001228 spectrum Methods 0.000 abstract 8
- 239000000203 mixture Substances 0.000 abstract 2
- 230000000694 effects Effects 0.000 abstract 1
- 238000005259 measurement Methods 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
Landscapes
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Abstract
FIELD: hydro-acoustics, possible use during hydro-acoustic measurements of underwater noise emission.SUBSTANCE: method includes taking in a mixture of underwater noise emission and interferences with enabled and disabled emitter in accordance to directional characteristic of flexible extended towed antenna, oriented to its ship. Also, interferences are received in accordance to directional characteristic of flexible extended towed antenna turned away from its ship. Compensation of interferences is realized by energy subtraction of interferences from mixture of underwater noise emission signal and interferences. Further, energy spectrum of noise emission, modified for elementary distance, is determined. Also, noise is additionally received by means of route of auxiliary receiver, positioned at distance reservoir from emitter on a submarine, on which before enabling the artificial emission, energy spectrum of acoustic and electric interferences is measured, mutual energy spectrum is selected between noise signals at the output of flexible extended towed antenna and auxiliary receiver, and also energy spectrum at output of auxiliary receiver. Transfer function of environment is determined. Phase part of mutual energy spectrum is determined. Distance between phase center of flexible extended towed antenna, and acoustic center of underground noise emission of submarine, are determined. Flexible extended towed antenna is displaced along a straight line passing through the center of flexible extended towed antenna. Energy spectrum of noise emission is determined for distance between acoustic center of underwater emission of submarine and phase center of flexible extended towed antenna by moving flexible extended towed antenna closer to submarine. With enabled auxiliary emitter, energy spectrum of signal from underwater ship emission is recorded at output of flexible extended towed antenna, clean of constant component of interferences. Energy spectrum of underwater noise emission of submarine, modified for elementary distance, is determined with consideration of transfer function.EFFECT: increased trustworthiness, less time needed for calibration.2 cl, 8 dwg
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU4508429/28A SU1840603A1 (en) | 1989-02-06 | 1989-02-06 | Method for measuring inherent underwater noise emission and a noise meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU4508429/28A SU1840603A1 (en) | 1989-02-06 | 1989-02-06 | Method for measuring inherent underwater noise emission and a noise meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU1840603A1 true SU1840603A1 (en) | 2007-08-20 |
Family
ID=60537962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU4508429/28A SU1840603A1 (en) | 1989-02-06 | 1989-02-06 | Method for measuring inherent underwater noise emission and a noise meter |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU1840603A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115792871A (en) * | 2022-09-22 | 2023-03-14 | 中国舰船研究设计中心 | Acoustic Compatibility Test Method for Towed Line Array of Bulbous Underwater Acoustic Equipment on Lake |
| RU223565U1 (en) * | 2023-11-20 | 2024-02-22 | Российская Федерация, от имени которой выступает Министерство промышленности и торговли Российской Федерации (Минпромторг) | Universal hydroacoustic measuring antenna module |
-
1989
- 1989-02-06 SU SU4508429/28A patent/SU1840603A1/en active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115792871A (en) * | 2022-09-22 | 2023-03-14 | 中国舰船研究设计中心 | Acoustic Compatibility Test Method for Towed Line Array of Bulbous Underwater Acoustic Equipment on Lake |
| RU223565U1 (en) * | 2023-11-20 | 2024-02-22 | Российская Федерация, от имени которой выступает Министерство промышленности и торговли Российской Федерации (Минпромторг) | Universal hydroacoustic measuring antenna module |
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