CN201740870U - Towed linear array hydrophone set - Google Patents
Towed linear array hydrophone set Download PDFInfo
- Publication number
- CN201740870U CN201740870U CN2010202506513U CN201020250651U CN201740870U CN 201740870 U CN201740870 U CN 201740870U CN 2010202506513 U CN2010202506513 U CN 2010202506513U CN 201020250651 U CN201020250651 U CN 201020250651U CN 201740870 U CN201740870 U CN 201740870U
- Authority
- CN
- China
- Prior art keywords
- hydrophone
- group
- sheath
- nautical receiving
- receiving set
- 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 - Fee Related
Links
Images
Abstract
A towed linear array hydrophone set belongs to a hydrophone array. The utility model solves the problems of the existing linear array that port/starboards on which targets are can not be timely discriminated, target capture time is extended, and target losing probability is increased, solves the large physical size, high installation accuracy requirement and high cost problems of the base array, and reduces the number of hydrophones used. The hydrophone set comprises a sheath, N hydrophone sets in the sheath and a signal processing part. Each hydrophone set comprises a front, a rear, a left and a right hydrophones, the front, the rear, the left and the right hydrophones are arranged in a crossed way and fixed on the same plane in the sheath by a holder, the distance between the front and the rear hydrophones is wavelength lamda corresponding to receiving signal center frequency, and the distance between the left and the right hydrophones is one fourth lamda. The distance between two hydrophone sets is one second lamda. The hydrophone set has the advantages of simple structure, low installation accuracy requirements, easy manufacture and low cost. Hydrophone set number can be largely reduced. The port/starboard fuzzy problems of towed linear array sonar can be effectively solved.
Description
Technical field
The utility model belongs to the nautical receiving set linear array, particularly a kind of hydrophone, group that is used for towing line array.
Background technology
The primitive of conventional towing line array is single all directional hydrophone, and towing line array is made of several all directional hydrophones of point-blank arranging.Towing line array is easy to generate the problem of port and starboard ambiguity, and the method that can solve towing line array port and starboard ambiguity problem at present has:
(1) as document Grim Steinar Gjonnes and Aagedal.Left/right discrimination insoftware with conventional, passive thin-line towed submarine arrays.UDT2000, Pacific:1-6 is described, for the solid wire array of forming by the non-directive nautical receiving set, after detecting target, rely on this warship motor-driven, according to sonar time-orientation course figure in the target azimuth variation or according to the tracking algorithm of complexity, tell the residing port and starboard of target.Self-evident, this method real-time is poor, is difficult to satisfy actual needs.
(2) early 1990s, people such as Jean Bertheas have introduced the compound sonar transducer array that adopts three linear arrays to form and have solved the port and starboard resolution problems in United States Patent (USP) 5058082 " Linearhydrophonic antenna and electronic device to remove right/left ambiguity; associatedwith the antenna ".Its shortcoming is: only simple signal is suitable for, and when signal frequency was low, the size of this compound sonar transducer array was bigger, and makes complicated.
(3) on the basis of United States Patent (USP) 5058082, Van Mierlo etc. are at document Van Mierlo etc, Port/starboard discrimination by hydrophone triplets in active and passive towedarrays, among the UDT97, proposition utilizes the ternary hydrophone, group to carry out port and starboard Target Recognition problem, the mounting structure that does not relate to the ternary nautical receiving set in the document does not relate to the composition structure of towing line array yet.
(4) people such as He Xinyi is installed to single towing line array in Chinese patent 02289416.0 " a kind of hydrophone, group that is used for the towing line array sonar transducer array " with the binary hydrophone, group, to eliminate port and starboard ambiguity.The nautical receiving set number is more in this patent.
(5) Du voter has provided the concrete mounting means of ternary hydrophone, group in Chinese patent 200420020060.1 " a kind of towing acoustic array of real-time elimination port and starboard ambiguity ", and the towing line array that the ternary hydrophone, group is constituted has entered the engineering application stage.But adopt the shortcoming of ternary basic matrix to be: the physical size of basic matrix is big, installation accuracy requires height, cost height.
Summary of the invention
The utility model provides a kind of towing line array hydrophone, group, and the solid wire array that solves non-directive nautical receiving set composition can not provide the residing port and starboard of target immediately, and can prolong the capture time of target and the problem of increase track rejection probability; And solve big, the high and high problem of cost of installation degree of accuracy requirement of basic matrix physical size in the existing ternary array; Reduce the number of using nautical receiving set in the binary hydrophone, group simultaneously.
A kind of towing line array hydrophone, group of the present utility model, comprise: N hydrophone, group in the sheath, sheath and Signal Processing Element, be full of iknsulating liquid in the sheath, N hydrophone, group is connected in series, constitute the uniform line array, Signal Processing Element is electrically connected with each hydrophone, group, to the acoustical signal that each hydrophone, group receives sample, filtering and transmission; N is 2～30; It is characterized in that:
Described hydrophone, group comprises four nautical receiving sets in front, rear, left and right, the axis of front, rear, left and right nautical receiving set is all parallel with the sheath axis direction, being cruciform arranges, be fixed on the same plane in the sheath by fixed mount, distance is received signal centre frequency corresponding wavelength λ between the forward and backward nautical receiving set, and distance is λ/4 between the left and right nautical receiving set;
Distance is λ/2 between two hydrophone, group.
Described towing line array hydrophone, group, described fixed mount can be rectangle, circle or oval metal framework.
Described towing line array hydrophone, group is characterized in that:
Nautical receiving set in the described hydrophone, group is the non-directive nautical receiving set, has identical structure and physical characteristics;
Adopt Kev to draw nylon rope to connect between the described hydrophone, group.
When utilizing the utility model to monitor, at first adopt how much phase shift models that the output signal of left and right nautical receiving set is handled; With the output of the geometric mean of left and right nautical receiving set output signal, the method that the output signal of preceding nautical receiving set, equivalent nautical receiving set and back nautical receiving set utilizes conventional wave beam to form is handled again as equivalent nautical receiving set; Then the signal processing results of left and right nautical receiving set and the result of conventional wave beam formation are multiplied each other as the output of this hydrophone, group; At last the output of each hydrophone, group is calculated with conventional beamforming algorithm (conventional beam forming), as the output of whole linear array.
The utility model is formed hydrophone, group with nautical receiving set, and as the composition of towing line array sonar, the nautical receiving set number can significantly reduce; This hydrophone, group is simple in structure, the installation accuracy requirement is low, be easy to making, cost is low, adopts certain signal processing technology can realize the port and starboard of target is differentiated when wave beam forms.Through theoretical analysis, emulation experiment and anechoic tank, experiment, proved that fully the utility model can effectively solve the port and starboard ambiguity problem of towing line array sonar.
Description of drawings
Fig. 1 the utility model structural representation;
Fig. 2 is the hydrophone, group structural representation that comprises four nautical receiving sets in front, rear, left and right;
Fig. 3 is the utility model hydrophone, group signal processing flow figure.
Embodiment
Below in conjunction with embodiment the utility model is further specified.
As shown in Figure 1, an embodiment of the present utility model, comprise: 16 hydrophone, group 2 in the sheath 1, sheath 1 and Signal Processing Element, be full of iknsulating liquid in the sheath, 16 hydrophone, group are connected in series, constitute the uniform line array, Signal Processing Element is electrically connected with each hydrophone, group, to the acoustical signal that each hydrophone, group receives sample, filtering and transmission;
As shown in Figure 2, hydrophone, group comprises preceding nautical receiving set 3, back nautical receiving set 4, left nautical receiving set 5,6 four nautical receiving sets of right nautical receiving set, the axis of front, rear, left and right nautical receiving set is all parallel with the sheath axis direction, being cruciform arranges, be fixed on the same plane in the sheath by fixed mount, distance is received signal centre frequency corresponding wavelength λ between the forward and backward nautical receiving set, and distance is λ/4 between the left and right nautical receiving set;
Distance is λ/2 between two hydrophone, group.
Use 64 aphalangias of buying on the market to nautical receiving set 1 with same structure and physical characteristics, its received signal centre frequency is at 2.5kHz, at first with the diameter two ends of two nautical receiving sets iron ring fixed mount 3 that to adopt highstrenghtpistons to be fixed on a radius be 7.5cm, constitute left nautical receiving set 5, right nautical receiving set 6, keep good left and right nautical receiving set spacing on the one hand, and prevent that left and right nautical receiving set is out of shape, twists in the towing process.Because be to adopt phase shift model port and starboard resolution techniques processing signals how much, left and right nautical receiving set spacing is set to 1/4th of the received signal centre frequency corresponding wavelength λ that wants, i.e. 15cm; Nautical receiving set 3 and back nautical receiving set 4 before the two ends of left and right nautical receiving set are fixing again, forward and backward nautical receiving set and left and right nautical receiving set centre distance are 1/2nd of the received signal centre frequency corresponding wavelength λ that wants, be 30cm, as shown in Figure 2, constitute 16 hydrophone, group so altogether.
Then, with 16 hydrophone, group, draw the nylon rope series connection with Kev, fix in line, this straight line also is the axis of each hydrophone, group; Fixing purpose is that spacing is 1/2nd of the received signal centre frequency corresponding wavelength λ that wants, i.e. 30cm between two hydrophone, group in order to keep.And 16 hydrophone, group are inserted in the sheath of organic glass that a diameter is 15.5cm; again fixed mount is fixed on the sheath; the purpose that adds upper jacket is in order to protect hydrophone, group not damaged by external force on the one hand, is in order to prevent the deformation of whole hydrophone, group on the other hand.Conventional Signal Processing Element also is housed in the sheath, Signal Processing Element is that 10kHz, sampling resolution are that 32 sampling thief, bandpass filter and Transmission Fibers formed by sample frequency, this Signal Processing Element is electrically connected with each hydrophone, group, the acoustical signal that each nautical receiving set in the hydrophone, group is received sample and filtering after change digital electric signal in the required frequency range into, the signal processing apparatus that is sent to the towing line array sonar through optical fiber carries out signal Processing.
Be full of light wax oil in the sheath, thereby constituted a cable, guaranteed that whole cable is a neutral buoyancy in seawater, can pull any degree of depth in seawater to cable like this.
Fig. 3 is the utility model hydrophone, group signal processing flow figure.
Claims (3)
1. towing line array hydrophone, group, comprise: N hydrophone, group in the sheath, sheath and Signal Processing Element, be full of iknsulating liquid in the sheath, N hydrophone, group is connected in series, constitute the uniform line array, Signal Processing Element is electrically connected with each hydrophone, group, to the acoustical signal that each hydrophone, group receives sample, filtering and transmission; N is 2～30; It is characterized in that:
Described hydrophone, group comprises four nautical receiving sets in front, rear, left and right, the axis of front, rear, left and right nautical receiving set is all parallel with the sheath axis direction, being cruciform arranges, be fixed on the same plane in the sheath by fixed mount, distance is received signal centre frequency corresponding wavelength λ between the forward and backward nautical receiving set, and distance is λ/4 between the left and right nautical receiving set;
Distance is λ/2 between two hydrophone, group.
2. towing line array hydrophone, group as claimed in claim 1 is characterized in that:
Described fixed mount is rectangle, circle or oval metal framework.
3. towing line array hydrophone, group as claimed in claim 1 or 2 is characterized in that:
Nautical receiving set in the described hydrophone, group is the non-directive nautical receiving set, has identical structure and physical characteristics;
Adopt Kev to draw nylon rope to connect between the described hydrophone, group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202506513U CN201740870U (en) | 2010-07-08 | 2010-07-08 | Towed linear array hydrophone set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202506513U CN201740870U (en) | 2010-07-08 | 2010-07-08 | Towed linear array hydrophone set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201740870U true CN201740870U (en) | 2011-02-09 |
Family
ID=43556147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202506513U Expired - Fee Related CN201740870U (en) | 2010-07-08 | 2010-07-08 | Towed linear array hydrophone set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201740870U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2936198A2 (en) * | 2012-12-19 | 2015-10-28 | ATLAS Elektronik GmbH | Submarine antenna, meta submarine antenna and water vehicle |
| CN106646381A (en) * | 2016-11-17 | 2017-05-10 | 北京航天控制仪器研究所 | All fiber towed 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 |
| 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 |
-
2010
- 2010-07-08 CN CN2010202506513U patent/CN201740870U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2936198A2 (en) * | 2012-12-19 | 2015-10-28 | ATLAS Elektronik GmbH | Submarine antenna, meta submarine antenna and water vehicle |
| CN106646381A (en) * | 2016-11-17 | 2017-05-10 | 北京航天控制仪器研究所 | All fiber towed array |
| CN106646381B (en) * | 2016-11-17 | 2019-05-24 | 北京航天控制仪器研究所 | A kind of all -fiber towed 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 |
| 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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Maguer et al. | Mechanisms for subcritical penetration into a sandy bottom: Experimental and modeling results | |
| CN201740870U (en) | Towed linear array hydrophone set | |
| JPH03195994A (en) | System and method for discriminating ob- ject | |
| CN102928844A (en) | Underwater sub-wavelength resolution ratio three-dimensional imaging method | |
| CN101614820A (en) | A kind of signal enhancement laser radar system based on modified F-P etalon | |
| CN111273265A (en) | Single-vector hydrophone autonomous ranging device and method based on DEMON spectrum | |
| CN209433023U (en) | A kind of nearly bottom pull-type receives cable system for acquiring seismic data at random | |
| CN109444896A (en) | Underwater sound array positioning system and its localization method | |
| CN2585245Y (en) | Hydrophone set used for drag wire array sonar basic array | |
| CN104991288A (en) | Marine submergent oil detection system and method based on sonar and electromagnetic cooperative detection technology | |
| CN113932911A (en) | Underwater acoustic environment observation system based on wave glider | |
| CN101231342A (en) | Towing type horizontal fishing-exploring instrument | |
| CN206161848U (en) | Measure discrete array of sound source sound field characteristic under water | |
| CN106646433B (en) | Discrete array for measuring sound field characteristics of underwater sound source | |
| CN101706584A (en) | High-precision oceanic earthquake exploration data acquisition system | |
| Pinto et al. | Real-and synthetic-array signal processing of buried targets | |
| CN109632258A (en) | A kind of internal wave of ocean acoustic detection method that the transmitting-receiving based on vector sensor is isolated | |
| CN113093107A (en) | Underwater sound signal acquisition and transmission system and method | |
| CN107976686A (en) | A kind of more field angle oceanographic lidars and its field angle selection method | |
| CN205958748U (en) | Ocean robot qxcomm technology three -dimensional imaging cabin section | |
| CN2681996Y (en) | Towing sound array for real-time eliminating left and right boards fuzziness | |
| CN114455042B (en) | Intelligent underwater sound detection system based on underwater glider | |
| EP3047243A1 (en) | Acoustic converter, acoustic converter system, optical hydrophone, acoustic converter array and watercraft | |
| CN204731434U (en) | Stay under water oily pick-up unit in a kind of ocean of working in coordination with Detection Techniques based on sonar electromagnetism | |
| CN112114299A (en) | Single-towed linear array sonar port and starboard target rapid resolution system and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110209 Termination date: 20110708 |