CN104730512A - Detection method and system for line sequence reverse connection faults of hydrophone - Google Patents
Detection method and system for line sequence reverse connection faults of hydrophone Download PDFInfo
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- CN104730512A CN104730512A CN201310701322.4A CN201310701322A CN104730512A CN 104730512 A CN104730512 A CN 104730512A CN 201310701322 A CN201310701322 A CN 201310701322A CN 104730512 A CN104730512 A CN 104730512A
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- receiving set
- nautical receiving
- line sequence
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- wave beam
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- 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
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
- G01S7/52004—Means for monitoring or calibrating
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- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Abstract
The invention discloses a detection method and system for line sequence reverse connection faults of a hydrophone. The method includes the step 101 that collected hydrophone signals are subjected to beam forming processing; the step 102 that a beam forming result is analyzed, and if a split beam and a decreased peak value simultaneously appear in the beam forming result, it is judged that the hydrophone has a line sequence reverse connection fault; otherwise, the hydrophone has no line sequence reverse connection fault. According to the method, received signals of multiple array elements are combined and analyzed by utilizing the redundancy of data of the multiple array elements and relative stability of the obtained submarine sound signals, and then fault information can be given out when faults happen. The method can accurately detect the line sequence reverse connection faults of the hydrophone.
Description
Technical field
The invention belongs to sonar applications field, particularly a kind of nautical receiving set line sequence reversal connection fault detection method and system.
Background technology
In sonar applications field, nautical receiving set is the core cell forming sonar array, and the quality of its state directly affects the performance of sonar array.In the phenomenon of the failure of nautical receiving set, a kind of fault is had to be the reversal connection of nautical receiving set line sequence, in this phenomenon of the failure, hydrophone signals is normal, fault cannot be analyzed by the analysis means such as oscillograph, signal frequency to exist, and due to the hydrophone signals after Cheng Zhen, neighbourhood noise is larger, also be difficult to judge that whether line sequence is contrary by the method for observation signal phase place, and the impact of line sequence reversal connection pair array signal transacting is very large, it can cause detection threshold to reduce, operating distance reduces, target azimuth mistake, the results such as target following mistake.Because one-tenth battle array process need carries out repeatedly the connection between disparate modules, different cable, and also need repeatedly to carry out attended operation in the process such as maintenance, maintenance, repair after Cheng Zhen, this fault of line sequence reversal connection occurs than being easier to, and yet there are no the method published at present and paper is discussed to some extent to the detection method of this fault.
Summary of the invention
The object of this invention is to provide a kind of method for detecting nautical receiving set line sequence reversal connection fault.It utilizes the hydrophone signals obtained, and after broad-band EDFA process, analyzes the result obtained, and reduces phenomenon, can judge it is the reversal connection of line sequence if there is distinctive split beam and peak value.The method can be carried out in experimentation, without the need to Special Equipment, can solve a detection difficult problem for nautical receiving set line sequence reversal connection.
To achieve these goals, the invention provides a kind of nautical receiving set line sequence reversal connection fault detection method, described method comprises:
Step 101) hydrophone signals collected is carried out Wave beam forming process;
Step 102) result of Wave beam forming is analyzed, if there is split beam and peak value reduction in the result of Wave beam forming simultaneously, then it is determined that the presence of the reversal connection of nautical receiving set line sequence; Otherwise, there is not the reversal connection of nautical receiving set line sequence.
Above-mentioned steps 101) comprise further:
Step 101-1) when there is target, record and store one section of nautical receiving set data;
Step 101-2) gather nautical receiving set data;
Step 101-2) the nautical receiving set data of collection are carried out packet transaction, then respectively Wave beam forming is carried out to each group of data.
Above-mentioned steps 102) comprise further:
Step 102-1) carry out Time-bearing display based on Wave beam forming result, obtain course figure time aziniuth;
Step 102-2) judge whether there is split beam in course figure time aziniuth, if existed, enter step 102-3); Otherwise, show that nautical receiving set line sequence reversal connection fault does not exist;
Step 102-3) search orientation and the size of the peak value of the result of each group of Wave beam forming;
Step 102-4) orientation of confirmed standard peak value and size, wherein, described typical peak is: the maximal value in the peak value of each group nautical receiving set Wave beam forming result;
Step 102-5) when the orientation of the peak value of the result of each group of Wave beam forming and the orientation of size and typical peak and the difference of size are greater than 20%, then draw to there is nautical receiving set line sequence reversal connection fault; Otherwise there is not nautical receiving set line sequence reversal connection fault.
In addition, present invention also offers a kind of nautical receiving set line sequence reversal connection fault detection system, described system comprises:
Wave beam forming module, carries out broad-band EDFA process for the hydrophone signals that will collect;
Fault detection module, for analyzing the result of Wave beam forming, if there is split beam and peak value reduction in the result of Wave beam forming simultaneously, then judges it is the reversal connection of line sequence; Otherwise, there is not line sequence reversal connection fault.
Above-mentioned Wave beam forming module comprises further:
Sub module stored, for when there is target, recording and storing one section of nautical receiving set data; Gather submodule, for gathering nautical receiving set data; Process submodule, for the nautical receiving set data of collection are carried out packet transaction, then carries out Wave beam forming respectively to each group of data, wherein, 4 nautical receiving sets is divided into one group.
Above-mentioned fault detection module comprises further:
Time aziniuth, course figure obtained submodule, for carrying out Time-bearing display based on Wave beam forming result, obtained course figure time aziniuth;
First judgement submodule, for judging whether there is split beam in course figure time aziniuth, if existing, starting peak information and obtaining submodule; Otherwise, show that nautical receiving set line sequence reversal connection fault does not exist;
Peak information obtains submodule, for searching orientation and the size of the peak value of the result of each group of Wave beam forming;
Typical peak acquisition of information submodule, for orientation and the size of the peak value that settles the standard, wherein, described typical peak is: the maximal value in the peak value of each group nautical receiving set Wave beam forming result;
Second judgement submodule, for there are differences whether be greater than 20% when the orientation of peak value of result of each group of Wave beam forming and the orientation of size and typical peak and size, and there is split beam phenomenon simultaneously, if be greater than 20 percent and there is split beam phenomenon, think to there is nautical receiving set line sequence reversal connection fault; Otherwise there is not nautical receiving set line sequence reversal connection fault.
The present invention is based on conventional beamformer method, and concrete steps are as follows:
(1), when there is target, one section of nautical receiving set data is recorded;
(2) to the nautical receiving set data in step (1), be one group with 4, utilize the Beamforming Method of conventional frequency domain or time domain, carry out Wave beam forming calculating;
(3) Time-bearing display is made to the Wave beam forming result obtained in step (2), provide course figure time aziniuth, observe wherein whether have split beam phenomenon;
(4) peak value is searched to the Wave beam forming result obtained in step (2), respectively organize the peak value of Wave beam forming, provide the maximum wave beam value of peak value as with reference to standard, other group beam peak and standard value are compared;
(5) if observe by split beam phenomenon in step (3), the comparative result of integrating step (4), if beam peak difference is more than 20%, then can be judged to be the fault that there is the reversal connection of nautical receiving set line sequence simultaneously.
Compared with prior art, technical advantage of the present invention is:
The present invention, by above-mentioned process, easily and intuitively can judge the fault of nautical receiving set line sequence reversal connection.The present invention can carry out in experimentation, without the need to Special Equipment, by above-mentioned process, easily and intuitively can judge the fault of nautical receiving set line sequence reversal connection, solve a detection difficult problem for nautical receiving set line sequence reversal connection.
Accompanying drawing explanation
The split beam schematic diagram that during the sequence reversal connection of Fig. 1 nautical receiving set line, bearing history figure provides;
Bearing history figure during Fig. 2 nautical receiving set normal line sequence normal wave beam display schematic diagram;
Wave beam forming result schematic diagram during the sequence reversal connection of Fig. 3 nautical receiving set line; Wherein, horizontal ordinate represents the orientation of wave beam, and ordinate represents the amplitude of wave beam;
Wave beam forming result schematic diagram during Fig. 4 nautical receiving set normal line sequence; Wherein, horizontal ordinate represents the orientation of wave beam, and ordinate represents the amplitude of wave beam;
The program flow diagram of Fig. 5 embodiment of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the method for the invention is described in detail.
The embodiment of the present invention is for 32 yuan of linear arrays, and 1,2,3,4 and 5 pair of most preferred embodiment is described in detail by reference to the accompanying drawings.
When there is target in the present invention, first data acquisition is carried out to 32 yuan of battle arrays, the length of image data can be decided to be 1 minute, the array element data of collection are divided into groups in order, every 4 array elements are one group, totally 8 groups, carry out Wave beam forming process, the Beamforming Method adopted is conventional beamformer method, can be frequency-domain beamforming method or Time domain beamforming method.By carrying out Time-bearing display (see Fig. 1,2) to Wave beam forming result, operating personnel can observe split beam phenomenon by indication control board.The peak value of this method to each group of Wave beam forming result compares simultaneously, take peak maximum as standard, by respectively organizing the size of peak value and the difference of typical peak of Wave beam forming result, if peak difference is greater than 20%, then can judge to there is nautical receiving set reversal connection fault.The method through test, to the testing result rate of accuracy reached of nautical receiving set reversal connection fault to 100%.In addition, Wave beam forming result schematic diagram when Fig. 3 is the sequence reversal connection of nautical receiving set line; Wave beam forming result schematic diagram during Fig. 4 nautical receiving set normal line sequence.
Fig. 5 is the process flow diagram of implementation method of the present invention, specifically comprises:
Gather nautical receiving set data; The nautical receiving set data gathered are divided into groups; Wave beam forming is carried out based on each group of data;
Carry out Time-bearing display based on Wave beam forming result, observe split beam phenomenon; Search orientation and the size of the peak value of each group of wave beam, the orientation of confirmed standard peak value and size simultaneously, the orientation of the orientation of each group of peak value and size and typical peak and size are compared;
If there is wave beam respectively, and each orientation size of wave beam and the orientation of typical peak and difference in size rate organized is greater than 20 percent, then there is nautical receiving set line sequence reversal connection fault; Otherwise there is not nautical receiving set line sequence reversal connection fault.
In a word, the invention belongs to sonar applications field, the method for particularly nautical receiving set line sequence reversal connection fault detect in passive towing line array.(1), when there is target, one section of nautical receiving set data is recorded; (2) to the nautical receiving set data in step (1), be one group with 4, utilize the Beamforming Method of conventional frequency domain or time domain, carry out Wave beam forming calculating; (3) Time-bearing display is made to the Wave beam forming result obtained in step (2), provide course figure time aziniuth, observe wherein whether have split beam phenomenon; (4) peak value is searched to the Wave beam forming result obtained in step (2), respectively organize the peak value of Wave beam forming, provide the maximum wave beam value of peak value as with reference to standard, other group beam peak and standard value are compared; (5) if observed split beam phenomenon in step (3), the comparative result of integrating step (4), if beam peak difference is more than 20%, then can be judged to be the fault that there is the reversal connection of nautical receiving set line sequence simultaneously.
It should be noted last that, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted.Although with reference to embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, modify to technical scheme of the present invention or equivalent replacement, do not depart from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (6)
1. a nautical receiving set line sequence reversal connection fault detection method, described method comprises:
Step 101) hydrophone signals collected is carried out Wave beam forming process;
Step 102) result of Wave beam forming is analyzed, if there is split beam and peak value reduction in the result of Wave beam forming simultaneously, then it is determined that the presence of the reversal connection of nautical receiving set line sequence; Otherwise, there is not the reversal connection of nautical receiving set line sequence.
2. nautical receiving set line sequence reversal connection fault detection method according to claim 1, is characterized in that, described step 101) comprise further:
Step 101-1) when there is target, record and store one section of nautical receiving set data;
Step 101-2) gather nautical receiving set data;
Step 101-2) the nautical receiving set data of collection are carried out packet transaction, then respectively Wave beam forming is carried out to each group of data.
3. nautical receiving set line sequence reversal connection fault detection method according to claim 1 and 2, is characterized in that, described step 102) comprise further:
Step 102-1) carry out Time-bearing display based on Wave beam forming result, obtain course figure time aziniuth;
Step 102-2) judge whether there is split beam in course figure time aziniuth, if existed, enter step 102-3); Otherwise, show that nautical receiving set line sequence reversal connection fault does not exist;
Step 102-3) search orientation and the size of the peak value of the result of each group of Wave beam forming;
Step 102-4) orientation of confirmed standard peak value and size, wherein, described typical peak is: the maximal value in the peak value of each group nautical receiving set Wave beam forming result;
Step 102-5) when the orientation of the peak value of the result of each group of Wave beam forming and the orientation of size and typical peak and the difference of size are greater than 20%, then draw to there is nautical receiving set line sequence reversal connection fault; Otherwise there is not nautical receiving set line sequence reversal connection fault.
4. a nautical receiving set line sequence reversal connection fault detection system, described system comprises:
Wave beam forming module, carries out broad-band EDFA process for the hydrophone signals that will collect;
Fault detection module, for analyzing the result of Wave beam forming, if there is split beam and peak value reduction in the result of Wave beam forming simultaneously, then judges it is the reversal connection of line sequence; Otherwise, there is not line sequence reversal connection fault.
5. nautical receiving set line sequence reversal connection fault detection system according to claim 4, it is characterized in that, described Wave beam forming module comprises further:
Sub module stored, for when there is target, recording and storing one section of nautical receiving set data;
Gather submodule, for gathering nautical receiving set data;
Process submodule, for the nautical receiving set data of collection are carried out packet transaction, then carries out Wave beam forming respectively to each group of data, wherein, 4 nautical receiving sets is divided into one group.
6. the nautical receiving set line sequence reversal connection fault detection system according to claim 4 or 5, it is characterized in that, described fault detection module comprises further:
Time aziniuth, course figure obtained submodule, for carrying out Time-bearing display based on Wave beam forming result, obtained course figure time aziniuth;
First judgement submodule, for judging whether there is split beam in course figure time aziniuth, if existing, starting peak information and obtaining submodule; Otherwise, show that nautical receiving set line sequence reversal connection fault does not exist;
Peak information obtains submodule, for searching orientation and the size of the peak value of the result of each group of Wave beam forming;
Typical peak acquisition of information submodule, for orientation and the size of the peak value that settles the standard, wherein, described typical peak is: the maximal value in the peak value of each group nautical receiving set Wave beam forming result;
Second judgement submodule, for there are differences whether be greater than 20% when the orientation of peak value of result of each group of Wave beam forming and the orientation of size and typical peak and size, and there is split beam phenomenon simultaneously, if be greater than 20 percent and there is split beam phenomenon, think to there is nautical receiving set line sequence reversal connection fault; Otherwise there is not nautical receiving set line sequence reversal connection fault.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310701322.4A CN104730512B (en) | 2013-12-18 | 2013-12-18 | Detection method and system for line sequence reverse connection faults of hydrophone |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310701322.4A CN104730512B (en) | 2013-12-18 | 2013-12-18 | Detection method and system for line sequence reverse connection faults of hydrophone |
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| CN104730512A true CN104730512A (en) | 2015-06-24 |
| CN104730512B CN104730512B (en) | 2017-05-17 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3913060A (en) * | 1974-03-04 | 1975-10-14 | Us Navy | Thermooptic sonar system |
| JPS61138187A (en) * | 1984-12-10 | 1986-06-25 | Nec Corp | Sonar device |
| CN101504458A (en) * | 2009-03-10 | 2009-08-12 | 中国船舶重工集团公司第七一五研究所 | Phase filtering based beam forming method |
| CN101718868A (en) * | 2009-12-08 | 2010-06-02 | 中国船舶重工集团公司第七一五研究所 | Multi-split beam phase difference-based multi-beam sounding method |
-
2013
- 2013-12-18 CN CN201310701322.4A patent/CN104730512B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3913060A (en) * | 1974-03-04 | 1975-10-14 | Us Navy | Thermooptic sonar system |
| JPS61138187A (en) * | 1984-12-10 | 1986-06-25 | Nec Corp | Sonar device |
| CN101504458A (en) * | 2009-03-10 | 2009-08-12 | 中国船舶重工集团公司第七一五研究所 | Phase filtering based beam forming method |
| CN101718868A (en) * | 2009-12-08 | 2010-06-02 | 中国船舶重工集团公司第七一五研究所 | Multi-split beam phase difference-based multi-beam sounding method |
Non-Patent Citations (1)
| Title |
|---|
| 陈秀敏 等: "一种CDMA基站天馈线接反问题查找算法", 《移动通信》 * |
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