CN2681996Y - Towing sound array for real-time eliminating left and right boards fuzziness - Google Patents
Towing sound array for real-time eliminating left and right boards fuzziness Download PDFInfo
- Publication number
- CN2681996Y CN2681996Y CN 200420020060 CN200420020060U CN2681996Y CN 2681996 Y CN2681996 Y CN 2681996Y CN 200420020060 CN200420020060 CN 200420020060 CN 200420020060 U CN200420020060 U CN 200420020060U CN 2681996 Y CN2681996 Y CN 2681996Y
- Authority
- CN
- China
- Prior art keywords
- hydrophone
- sheath
- hearing device
- towing
- real
- 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 - Lifetime
Links
Images
Landscapes
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Abstract
The utility model relates to a sound basic array of sonar. The utility model has the main purpose of overcoming the defects of the left and the right board mistiness of a towing line array composed of a single full direction water hearing device, etc. A mounting rack of the water hearing device is provided with three mounting holes. The three mounting holes are distributed on one circumference and present an equilateral triangle. The water hearing device is fixed among the three holes of the mounting rack to form a ternary water hearing device group. One sound basic array comprises at least two ternary water hearing device groups. The mounting rack is fixed in a protective rack of the water hearing device. The axis of the protective rack of the water hearing device is parallel to the axis of a protective sleeve. The protective rack of the water hearing device, a protective sleeve supporting rack, a gear shaped supporting rack, a gesture sensor and an electric module are connected together and arranged in the protective sleeve by a bearing and pulling element. The protective sleeve is filled with insulated liquid. The utility model has the advantages that the towing line array is composed of the ternary water hearing device, and the towing sound array obtains the optimal capability of distinguishing the left and the right boards by optimization signal disposing technique under the condition of the ternary water hearing device with a smaller physical size.
Description
Technical field:
The utility model relates to a kind of acoustic array of sonar, particularly relates to a kind of towing acoustic array that is made of the ternary hydrophone, group that can eliminate port and starboard ambiguity in real time.
Technical background:
The primitive of conventional towing line array is single all directional hydrophone, and all directional hydrophone of several in-lines constitutes linear array.The formed wave beam of linear array only has directive property in horizontal surface, and is omnidirectional in vertical surface, and therefore there is the port and starboard ambiguity problem in conventional towing line array.
The method that can solve towing line array port and starboard ambiguity problem at present has:
(1) for conventional towing line array, when needs were determined the target port and starboard, lash ship must change course, and promptly work is once motor-driven, determined the port and starboard of target then according to the situation of change in target measurement orientation.This motor-driven required time (mainly being formation stabilization time) is under remote monitoring or the tracking mode and can tolerates at lash ship, but when lash ship is under the special situation, when for example being subjected to torpedo attacking, carry out motor-driven fatally often blindly, so the application of the motor-driven method of lash ship is restricted.
(2) early 1990s, people's such as Jean Bertheas US Patent 5058082 " Linear hydrophonic antenna and electronic device to removeright/left ambiguity, associated with the antenna " has been introduced the compound acoustic matrix that adopts three linear arrays to form and has been solved the port and starboard resolution problems.This patent is under certain frequency of operation, determines that the center-to-center distance of three linear arrays is 1/3rd wavelength, makes the wave beam output of three linear arrays satisfy certain phase relation, thereby solves the port and starboard resolution problems.Its shortcoming is: at first only simple signal is suitable for, and when s-f was low, the size of this compound acoustic matrix was bigger, has so just limited its actual use; Secondly, this patent fixes the attitude of compound acoustic matrix by fill the oil of different densities three linear arrays, make complexity, so US Patent 5058082 is difficult to use in towing line array.
(3) at document Van Mierlo etc, Port/starboard discrimination byhydrophone triplets in active and passive towed arrays, among the UDT97, Van Mierlo etc. propose to utilize the ternary hydrophone, group to solve towing line array port and starboard resolution problems on the basis of US Patent 5058082.The mounting structure that does not relate to the ternary hydrophone, group in the document does not relate to the composition structure of towing line array yet.
(4) people's such as He Xinyi Chinese patent 02289416.0 " a kind of hydrophone, group that is used for the towing line array sonar transducer array " is installed to single towing line array with the binary hydrophone, group, to eliminate port and starboard ambiguity.Patent is described the towing line array structure that is made of the binary hydrophone, group, and exemplifying embodiment 1 has wherein verified that by envelope test on the lake how much phase shift models have the port and starboard of 7dB to gain; Exemplifying embodiment 2 is wherein only verified by l-G simulation test, and all exemplifying embodiments all do not pass through the checking of marine towing trial, does not promptly consider the attitude problem of acoustic array in the actual towing process.But, theoretical analysis and evidence, employing binary hydrophone, group can only be under static condition, two hydrophones that are the binary hydrophone, group must be in the horizontal surface, just can carry out port and starboard and differentiate, and can not carry out the attitude compensation, thereby can't actual towing use.
Summary of the invention:
The purpose of this utility model: at first be to overcome the shortcoming that there is the target port and starboard ambiguity in the towing line array that is made of single all directional hydrophone; The secondth, overcome the bigger shortcoming of ternary hydrophone, group basic matrix physical dimension; The 3rd is to overcome the shortcoming that ternary hydrophone, group basic matrix is easy to generate distortion; The 4th is to overcome binary hydrophone, group basic matrix can't actually pull the shortcoming of using owing to can not carry out the attitude compensation; Thereby provide a kind of towing line array that constitutes by the ternary hydrophone, group of the real-time elimination port and starboard ambiguity of can engineering using.
The utility model is achieved in that a kind of towing acoustic array of real-time elimination port and starboard ambiguity, comprising: sheath, erecting frame, hydrophone fender bracket, sheath bracing frame, gear-like bracing frame, bear parts, attitude sensor, hydrophone and electronic module; Respectively there was a snap ring at three positions before, during and after sheath was exterior; It is characterized in that: three mounting holes are arranged on the described hydrophone erecting frame, these three pore size distributions on same circumference, form equilateral triangle, hydrophone is fixed in the middle of three holes of erecting frame, constitutes a ternary hydrophone, group, and an acoustic array comprises two ternary hydrophone, group at least; Erecting frame is fixed in the hydrophone fender bracket, the axis of hydrophone fender bracket and sheath parallel axes, bear parts with hydrophone fender bracket, sheath bracing frame, gear-like bracing frame, attitude sensor, electronic module links together and be installed in the sheath, fills iknsulating liquid in described sheath;
The diameter D of described ternary hydrophone, group place circumference must be greater than dragging linear array self noise spatial correlation radius, less than 1/10th of received signal wavelength.
Described attitude sensor is installed in the two ends of acoustic array, and roll angle output must be arranged.
Described electronic module is electrically connected with hydrophone, attitude sensor, finishes the signal encoding function of amplification, filtering, A/D conversion.
The external diameter of described hydrophone fender bracket and sheath bracing frame is less than the sheath internal diameter.
The external diameter of described gear-like bracing frame is consistent with the sheath internal diameter, is installed in the two ends and the middle part of acoustic array.
Described snap ring is after the attitude sensor calibration, is installed in the sheath outside, utilizes compression set that sheath and gear-like bracing frame are fixed as one.
The described parts that bear comprise: Kevlar rope, copper ring and adaptor union.
The utility model advantage is: utilize the ternary hydrophone, group to constitute towing line array, employing optimization signal processing technology can be under the less situation of ternary hydrophone, group physical dimension, obtain best port and starboard resolution performance, reduced the distortion of acoustic array by special fixed sturcture, utilize the attitude sensor data to carry out real-time attitude compensation, thus the actual port and starboard ambiguity problem that has solved towing line array.
Description of drawings:
Fig. 1 is a ternary hydrophone, group structural representation in the utility model
Fig. 2 is a hydrophone erecting frame structural representation in the utility model
Fig. 3 is a hydrophone fender bracket structural representation in the utility model
Fig. 4 is the utility model middle gear shape support frame structure scheme drawing
Fig. 5 is a structural representation of the present utility model
Drawing is described as follows:
The 1-hydrophone; 2-hydrophone erecting frame; 3-hydrophone fender bracket;
4-sheath bracing frame; 5-gear-like bracing frame; 6-bears parts;
The 7-attitude sensor; The 8-electronic module; The 9-snap ring;
The 10-acoustic array; The 11-sheath.
Concrete exemplifying embodiment:
The towing acoustic array of a kind of real-time elimination port and starboard ambiguity of the present utility model can be made of two above ternary hydrophone, group.Being example with 32 ternary hydrophone, group now is described in detail the towing acoustic array of a kind of real-time elimination port and starboard ambiguity of the present utility model.
At first processing and fabricating 96 hydrophones of be fit to installing 1, the structure of these 96 hydrophones is consistent with performance.32 the hydrophone erecting frames 2 that utilized the Polyurethane material.Three mounting holes are arranged on the described hydrophone erecting frame, these three pore size distributions on same circumference, form equilateral triangle, hydrophone is fixed in the middle of three holes of erecting frame, constitute a ternary hydrophone, group, utilize nylon material to make 3, three gear-like bracing frames of 32 hydrophone fender brackets 5 and several sheath bracing frames 4; Three hydrophones 1 are installed on the hydrophone erecting frame 2, constitute a ternary hydrophone, group; Hydrophone erecting frame 2 is installed in the hydrophone fender bracket 3, to prevent distorting of ternary hydrophone, group.32 ternary hydrophone, group constitute an acoustic array.The diameter D of described ternary hydrophone place circumference must be greater than dragging linear array self noise spatial correlation radius, less than 1/10th of received signal wavelength.
According to shown in Figure 1, utilization bears parts 6 and in order hydrophone fender bracket 3, sheath bracing frame 4, gear-like bracing frame 5, attitude sensor 7 and electronic module 8 is connected into straight line, and the axis of hydrophone fender bracket 3 and this straight line parallel.All hydrophones that are in same position on the hydrophone erecting frame 2 constitute a linear array, form three linear arrays that are parallel to each other altogether.Hydrophone fender bracket 3 is uniformly-spaced installed.Described attitude sensor is installed in the two ends of acoustic array, and roll angle output must be arranged.
Above-mentioned each parts that link together are inserted in the Polyurethane sheath 11, carry out the attitude calibration, after the attitude calibration, snap ring 9 is enclosed within the outside of sheath 11 by 7 pairs of acoustic arrays of attitude sensor 10.The external diameter of described gear-like bracing frame is consistent with the sheath internal diameter, is installed in the two ends and the middle part of acoustic array.In gear-like bracing frame 5 positions, utilize air compressor that snap ring 9, sheath 11, gear-like bracing frame 5 are fixed together, like this 10 meters long acoustic arrays are divided into two sections, reduced the distortion of acoustic array, and under the effect of towing pulling force, can guarantee the parallelism of three linear arrays in the acoustic array, improve the performance that port and starboard is differentiated.The described parts that bear comprise: Kevlar rope, copper ring and adaptor union.
No. 96 hydrophone signals, attitude sensor signal, depth transducer signal are behind A/D conversion, coding, be sent to switching section with twisted-pair feeder, switching section is converted to coaxial signal with the twisted-pair feeder signal, transfer to signal handling equipment on the lash ship through towing cable, finish functions such as signal demodulation, broadband beams formation, target detect, target tracking, the resolution of target port and starboard, target recognition.
The acoustic array that is made of the ternary hydrophone, group of made in this exemplifying embodiment through envelope test and marine towing trial on theoretical analysis, the lake, has proved that fully the utility model can solve the port and starboard ambiguity problem of towing line array effectively; The envelope test result is consistent with theoretical analysis on the lake, obtains the above port and starboard rejection ratio of 25dB; Sea test shows, the utility model has reduced the distortion of acoustic array effectively, guaranteed the parallelism of three linear arrays in the acoustic array, and can carry out real-Time Compensation to any acoustic array attitude, under the lash ship 14 joint speed of a ship or plane, in 30 °～150 ° azimuth coverages, can both obtain the port and starboard rejection ratio more than the 10dB, thereby make this towing line array enter the engineering application stage.
Claims (7)
1. towing acoustic array of eliminating in real time port and starboard ambiguity comprises: sheath, erecting frame, hydrophone fender bracket, sheath bracing frame, gear-like bracing frame, bear parts, attitude sensor, hydrophone and electronic module; Respectively there was a snap ring at three positions before, during and after sheath was exterior; It is characterized in that: three mounting holes are arranged on the described hydrophone erecting frame, these three pore size distributions on same circumference, form equilateral triangle, hydrophone is fixed in the middle of three holes of erecting frame, constitutes a ternary hydrophone, group, and an acoustic array comprises two ternary hydrophone, group at least; Erecting frame is fixed in the hydrophone fender bracket, the axis of hydrophone fender bracket and sheath parallel axes, bear parts with hydrophone fender bracket, sheath bracing frame, gear-like bracing frame, attitude sensor, electronic module links together and be installed in the sheath, fills iknsulating liquid in described sheath;
2. the towing acoustic array of a kind of real-time elimination port and starboard ambiguity according to claim 1, it is characterized in that: the diameter D of described ternary hydrophone, group place circumference must be greater than dragging linear array self noise spatial correlation radius, less than 1/10th of received signal wavelength.
3. the towing acoustic array of a kind of real-time elimination port and starboard ambiguity according to claim 1 is characterized in that: described attitude sensor is installed in the two ends of acoustic array, and roll angle output must be arranged.
4. the towing acoustic array of a kind of real-time elimination port and starboard ambiguity according to claim 1 is characterized in that: described electronic module is electrically connected with hydrophone, attitude sensor, finishes the signal encoding function of amplification, filtering, A/D conversion.
5. the towing acoustic array of a kind of real-time elimination port and starboard ambiguity according to claim 1; it is characterized in that: described water listens the external diameter of fender bracket and sheath bracing frame less than the sheath internal diameter, and the external diameter of gear-like bracing frame that is installed in the two ends of acoustic array and middle part is consistent with the sheath internal diameter.
6. the towing acoustic array of a kind of real-time elimination port and starboard ambiguity according to claim 1 is characterized in that: described snap ring is after the attitude sensor calibration, is installed in the sheath outside, utilizes compression set that sheath and gear-like bracing frame are fixed as one.
7. the towing acoustic array of a kind of real-time elimination port and starboard ambiguity according to claim 1 is characterized in that: the described parts that bear comprise: Kevlar rope, copper ring and adaptor union.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420020060 CN2681996Y (en) | 2004-02-10 | 2004-02-10 | Towing sound array for real-time eliminating left and right boards fuzziness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420020060 CN2681996Y (en) | 2004-02-10 | 2004-02-10 | Towing sound array for real-time eliminating left and right boards fuzziness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2681996Y true CN2681996Y (en) | 2005-03-02 |
Family
ID=34606719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420020060 Expired - Lifetime CN2681996Y (en) | 2004-02-10 | 2004-02-10 | Towing sound array for real-time eliminating left and right boards fuzziness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2681996Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109031313A (en) * | 2018-06-28 | 2018-12-18 | 中国人民解放军国防科技大学 | Curve scalar hydrophone array capable of distinguishing port and starboard |
| CN109164435A (en) * | 2018-10-19 | 2019-01-08 | 海鹰企业集团有限责任公司 | A kind of small size reception acoustic array |
| CN109283512A (en) * | 2018-08-31 | 2019-01-29 | 中国船舶重工集团公司第七〇五研究所 | A kind of towing line array array element roll angle consistency structure |
| CN109949785A (en) * | 2019-02-25 | 2019-06-28 | 中国船舶重工集团公司第七二六研究所 | Tow line array based on III type flextensional transducer is at battle array structure |
| CN111398902A (en) * | 2020-03-11 | 2020-07-10 | 哈尔滨工程大学 | Passive distance and direction measuring method for right-angled triangle ternary hydrophone array |
| CN112114299A (en) * | 2019-06-19 | 2020-12-22 | 中国科学院声学研究所 | Single-towed linear array sonar port and starboard target rapid resolution system and method |
| CN112985577A (en) * | 2019-12-17 | 2021-06-18 | 中国船舶重工集团公司第七一五研究所 | Vertical towing line array with elliptical section |
-
2004
- 2004-02-10 CN CN 200420020060 patent/CN2681996Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109031313A (en) * | 2018-06-28 | 2018-12-18 | 中国人民解放军国防科技大学 | Curve scalar hydrophone array capable of distinguishing port and starboard |
| CN109283512A (en) * | 2018-08-31 | 2019-01-29 | 中国船舶重工集团公司第七〇五研究所 | A kind of towing line array array element roll angle consistency structure |
| CN109164435A (en) * | 2018-10-19 | 2019-01-08 | 海鹰企业集团有限责任公司 | A kind of small size reception acoustic array |
| CN109949785A (en) * | 2019-02-25 | 2019-06-28 | 中国船舶重工集团公司第七二六研究所 | Tow line array based on III type flextensional transducer is at battle array structure |
| CN112114299A (en) * | 2019-06-19 | 2020-12-22 | 中国科学院声学研究所 | Single-towed linear array sonar port and starboard target rapid resolution system and method |
| CN112985577A (en) * | 2019-12-17 | 2021-06-18 | 中国船舶重工集团公司第七一五研究所 | Vertical towing line array with elliptical section |
| CN112985577B (en) * | 2019-12-17 | 2023-08-15 | 中国船舶重工集团公司第七一五研究所 | Vertical towing line array with elliptical section |
| CN111398902A (en) * | 2020-03-11 | 2020-07-10 | 哈尔滨工程大学 | Passive distance and direction measuring method for right-angled triangle ternary hydrophone array |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109655836B (en) | High stability is detection sonar under water | |
| CN2681996Y (en) | Towing sound array for real-time eliminating left and right boards fuzziness | |
| CN108181626A (en) | A kind of high-resolution three-dimensional acoustics imaging system | |
| CN109765619B (en) | Marine seismic exploration system and method based on mobile platform carrying | |
| CN108766412B (en) | Pressure-resistant underwater acoustic cylindrical transducer array | |
| CN113607447A (en) | Acoustic-optical combined fan fault positioning device and method | |
| CN2585245Y (en) | Hydrophone set used for drag wire array sonar basic array | |
| CN112130112A (en) | Information source number estimation method based on acoustic vector array joint information processing | |
| CN107728153B (en) | Underwater panoramic three-dimensional imaging towed body | |
| CN113702978B (en) | Submarine pipeline detection positioning method and system based on forward-looking sonar | |
| CN201740870U (en) | Towed linear array hydrophone set | |
| CN211856889U (en) | Active and passive sonar towed line array device | |
| CN112629639A (en) | Twelve-arm extended super-directivity circular array for suspended sonar | |
| CN100339721C (en) | Phase control transducer array and phase control method for acoustic Doppler ocean current profile instrument | |
| CN2729667Y (en) | Interference type optical fiber hydrophone | |
| CN111381212A (en) | Virtual ultrashort baseline positioning method based on subarray division | |
| CN213813947U (en) | Offshore wind power foundation submarine cable access end detection system | |
| CN101706574B (en) | Dual-fin array sonar equipment | |
| CN110244286B (en) | High-gain array design method without port and starboard fuzziness | |
| CN211905676U (en) | Wide-coverage high-precision shallow sea multi-beam depth sounder | |
| CN113252937A (en) | Miniaturized ultrasonic wind speed sensor and wind speed measuring method thereof | |
| CN111650593A (en) | Submarine cable laying state probing system for offshore wind farm and working method of submarine cable laying state probing system | |
| CN212301883U (en) | Submarine cable laying state probing system for offshore wind farm | |
| CN113204007B (en) | Real-ship calibration system and method for transducer based on ultra-short baseline positioning | |
| CN116331456B (en) | A broadside array subassembly for unmanned submarine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140210 Granted publication date: 20050302 |
|
| CX01 | Expiry of patent term |