CN109738050A - A kind of underwater sound platform gateway connection lattice point design method - Google Patents
A kind of underwater sound platform gateway connection lattice point design method Download PDFInfo
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Abstract
The invention discloses a kind of underwater sound platform gateways to join lattice point design method, partition parameter is transmitted according to underwater sound signal and the definition of underwater sound station correlating event requires, by carrying out gridding division to monitoring sea area, the reflection station is created to the lattice point file of lattice point monitoring capability and its signal parameter, while reflecting the different stations to the coverage condition of same lattice point monitoring capability；Join according to underwater sound platform gateway and requires, it filters out and meets underwater sound platform gateway connection lattice point, reduce lattice point traversal number and the retrieval matching of invalid underwater sound station signal, improve the associated accuracy and efficiency of underwater sound platform net, is to carry out underwater sound platform gateway connection important support content based on lattice search.The present invention is associated with lattice point design during realizing underwater sound platform gateway connection, specific region can be associated with the screening of the underwater sound station and Signal Matching parameter Estimation, establishes the efficient underwater sound platform gateway connection lattice point Parameter File that can be used for practical operation.
Description
Technical field
The invention belongs to underwater sound monitoring technical fields, and in particular to a kind of underwater sound platform gateway connection lattice point design method.
Background technique
Underwater sound monitoring technology is to monitor the effective technology means of underwater explosion event, and the water as used by the underwater sound station is listened
Device has stronger sensitivity, can monitor underwater sound letter caused by the explosion of number kilogram equivalent outside thousands of miles in open waters
Number.The Comprehensive Nuclear Test Ban Treaty international monitoring system establishes the global monitoring network including 11 underwater sound stations, basic to have
The standby monitoring capability to global ocean explosive incident.Underwater sound signal is logical at the deep-sea of the intersection of thermocline core deep-sea isothermal layer
Road is transmitted in SOFAR channel, the consistency of medium is preferable, thus when transmission process signal is walked and azimuth deviation compared with
It is small.
Underwater sound monitoring data treatment process mainly include signal detection, characteristic parameter extraction, signal identification, platform gateway connection,
Equivalent estimation etc..For underwater sound platform net, monitored by underwater sound signal, azimuth, then, signal duration, class signal
Not Fen Xi after, platform gateway connection need to be carried out, find out underwater sound event that may be present.Platform gateway connection is the master of different station signal fuseds
Want step, and the important evidence analysed in depth event, carry out equivalent estimation, property identification.
The U.S. maintains the leading position in terms of underwater sound data processing, and underwater sound data source is also the abundantest；Completely forbid core
Test treaty organization carried out underwater sound monitoring data processing since 2001, has accumulated a large amount of underwater sound stations and participates in associated thing
Part, including the underwater sound-earthquake joint observation event and underwater sound platform net independent observation event use the whole world uniformly lattice point correlation method,
Since this method is only for seismic signal, in underwater sound field, treatment process specific aim is poor, and association process is complicated, low efficiency.
Summary of the invention
The present invention provides a kind of underwater sound platform gateway connection lattice point design method, can according to underwater sound station signal transmission path every
Disconnected parameter and the distribution of platform net provide each underwater sound platform net to the monitoring capability and signal parameter in specified sea area, establish corresponding lattice point text
Part, to realize the Rapid matching association of underwater sound signal.
In order to solve the above technical problems, the present invention provides a kind of underwater sound platform gateways to join lattice point design method, feature
It is, comprising the following steps:
S1, the selected required sea area range for carrying out underwater sound Analysis on monitoring data, set lattice point step-length, are created according to above-mentioned parameter
Establishing network lattice point；
S2, the station is monitored according to the underwater sound in the sea area selected S1 and the sea area circumferential distribution, sets underwater sound surveillance network,
Wherein, for each underwater sound array, classify according to the position Zi Tai, form multiple submatrixs；
S3, for the sub- platform of same class in each submatrix, effective transmission distance in its underwater sound signal sound hair channel is set separately
From, the setting of effective propagation path omnidirectional is carried out according to certain azimuthal separation, underwater sound array signal is formed and transmits and separate parameter, packet
Include different orientations az and its corresponding effective propagation path range；
S4, it is constituted according to underwater sound surveillance network, reads the corresponding azimuth of each underwater sound array signal transmission partition parameter
Az calculates submatrix using i-th of lattice point centre coordinate and j-th of underwater sound submatrix coordinate according to the grid lattice point sequence of S1 creation
With the space D between each lattice pointijWith the azimuth Azm of submatrix to each lattice pointij, estimate underwater sound signal and passed from each lattice point
Transport to underwater sound submatrix required time Tij:
Tij=Dij*SH；Wherein, SHFor underwater sound slowness；
S5, the azimuth Azm by lattice pointijWith underwater sound array signal transmit partition parameter in az matched, find out with
The immediate orientation angular dimensions az (m) in lattice point azimuth, when meeting DijWhen≤range (m), show that underwater sound station submatrix j can
It monitors underwater sound signal caused by lattice point i, counts the submatrix number N that there is monitoring capability to lattice point ichanAnd the underwater sound station
Number Nsta；
Submatrix number D needed for S6, setting underwater sound platform gateway join array parameter requirements, including definition underwater sound eventchanAnd the array
Number Dsta, lattice point is retained when the following conditions are met, otherwise deletes lattice point, obtains that specified underwater sound platform net in sea area is associated has
Imitate lattice point；
Nchan≥DchanAnd Nsta≥Dsta, Nchan≥Nsta。
The utility model has the advantages that partition parameter can be transmitted according to underwater sound signal by the present invention and the definition of underwater sound station correlating event requires,
Specified sea areas underwater sound platform gateway connection lattice point is established, specifies the station inventory that there is monitoring capability to each lattice point and signal ginseng
Number can be applied to the open waters underwater sound event platform gateway connection carried out based on lattice search.The invention has the following advantages that
1) present invention by establish and application the underwater sound station signal transmission partition parameter, more really reflect island and
Blocking effect of the seashore to underwater acoustic channel；By carrying out gridding division to monitoring sea area, the creation reflection station monitors lattice point
The lattice point file of ability and its signal parameter provides for the associated key parameter of underwater sound platform net, reflects the different stations pair
The coverage condition of same lattice point monitoring capability；Join according to underwater sound platform gateway and require, filters out and meet underwater sound platform gateway connection lattice point, subtract
The unnecessary search to low probability lattice point is lacked.
2) present invention realizes the international monitoring system underwater sound station to any point sea area monitoring ability and signal key parameter
Definition, specify that a certain regional event may monitor the station inventory of signal, convenient for during underwater sound platform gateway connection to letter
Number specific aim matching, reduce lattice point traversal number and the invalid underwater sound station signal retrieval matching, improve the underwater sound platform gateway connection
Accuracy and efficiency, be based on lattice search carry out the underwater sound platform gateway connection important support content.
3) it can reflect underwater sound signal transmission channel case, again include the station that may monitor some point underwater sound event
The underwater sound platform gateway of inventory and signal key parameter joins lattice point, then the auto-associating of specified sea areas underwater sound platform net not only may be implemented
With stationkeeping ability, Signal Matching and grid search efficiency during underwater sound platform gateway connection also can be improved.
Detailed description of the invention
Fig. 1 is the Comprehensive Nuclear Test Ban Treaty international monitoring system underwater sound Station distribution schematic diagram；
Fig. 2 is the H01 underwater sound station W1 platform partition parameter schematic diagram that international monitoring system is located at the Australia angle Lu Yin,
Abscissa is azimuth, and ordinate is effectively to monitor monitoring distance.
Fig. 3 is that 6 underwater sound stations such as H02 monitor station number distribution schematic diagram to different waters；
Fig. 4 has the sea area distribution schematic diagram of monitoring capability for 6 underwater sound station institute's gantry nets such as H02.
Specific embodiment
To keep the purpose of the present invention, content and advantage clearer, a specific embodiment of the invention is made into one below
Step detailed description.
A kind of underwater sound platform gateway proposed by the present invention joins lattice point design method, which comprises the following steps:
Range [the Lat of S1, the longitude in the selected required sea area for carrying out underwater sound Analysis on monitoring data and latitudemin,Latmax,
Lonmin,Lonmax], lattice point step-length gridd is set, network lattice point is created according to above-mentioned parameter；
S2, the station is monitored according to the underwater sound in the sea area selected S1 and the sea area circumferential distribution, sets underwater sound surveillance network,
Wherein, for each underwater sound array, classify according to the position Zi Tai, form multiple submatrixs, if the sub- platform of the array is on island
Upper north and south both ends distribution, then tri- sub- platforms of N1, N2, N3 that the North includes then are referred to as N submatrix；
S3, due to the different classes of submatrix of the same underwater sound array it is apart from each other, up to hundred kilometers, and same category of son
Platform is at a distance of relatively close, generally less than 2km.Therefore it is directed to every sub- platform of one kind, effective biography in its underwater sound signal sound hair channel is set separately
Defeated distance carries out the setting of effective propagation path omnidirectional according to 0.5 ° of azimuth interval, forms underwater sound array signal transmission partition ginseng
Number, the i.e. corresponding effective propagation path range of different orientations az；The same different classes of submatrix of the array underwater sound signal transmission every
Disconnected parameter may be different；
S4, it is constituted according to underwater sound surveillance network, each underwater sound array signal transmission partition parameter is read, according to S1 creation
Grid lattice point sequence, utilizes lattice point centre coordinate (Lati,Loni) and each underwater sound submatrix coordinate (Lattj,Lontj), calculate son
Space D between battle array and lattice pointijWith the azimuth Azm of submatrix to each lattice pointij, model (1) estimates the underwater sound when being walked according to the underwater sound
T the time required to signal is transmitted to underwater sound submatrix from lattice pointij:
Tij=Dij*SH (1)
Wherein, SHIt is 74.879s for underwater sound slowness, the corresponding velocity of sound is 1485m/s.
S5, by azimuth AzmijThe azimuth az in partition parameter is transmitted with underwater sound array signal to be matched, and is found out most
Close lattice point orientation angular dimensions az (m), when meeting DijWhen≤range (m), show that underwater sound station submatrix j can monitor lattice
Underwater sound signal caused by point i counts the submatrix number N for having monitoring capability to lattice point ichanAnd underwater sound station number Nsta, by
There may be multiple classification submatrixs (or sub- platform) in a underwater sound station, recognize when there is more than one submatrix that can monitor signal
There is monitoring capability, N for the underwater sound arraystaCounting i.e. plus 1；Range (m) is effective propagation path corresponding to az (m)；
Submatrix number D needed for S6, setting underwater sound platform gateway join array parameter requirements, including definition underwater sound eventchanAnd the array
Number Dsta, lattice point is retained when the following conditions are met, otherwise deletes lattice point, obtains that specified underwater sound platform net in sea area is associated has
Imitate lattice point；
Nchan≥DchanAnd Nsta≥Dsta, Nchan≥Nsta (2)
S7, S6 determine effective lattice point in, in each lattice point include lattice point centre coordinate, the submatrix with monitoring capability and
Its parameter (including the station to lattice point distance, azimuth, signal theory transmission time), the submatrix to the lattice point with monitoring capability
And whether underwater sound array number, current underwater sound platform net have monitoring capability etc. to the lattice point.It can be to underwater sound platform using above-mentioned lattice point
Battle array signal carries out Rapid matching and is associated with signal, and primarily determines the generation position of event.
The underwater sound array by Comprehensive Nuclear Test-Ban Treaty Organization found the state border monitoring the system underwater sound array, refer to all kinds of
Installation hydrophone is used to record the monitoring station of underwater sound signal；The underwater sound platform net refers to by the underwater sound of certain amount different distributions
The monitoring network that the array is constituted；The underwater sound submatrix, which refers to, monitors the underwater sound that sub- platform is constituted by more than two closely distribution underwater sounds
Signal monitoring array；It is the independent monitoring station of some in the underwater sound array that the underwater sound, which monitors sub- platform,；The underwater sound data refer to water
The data of sonic transducer record；The underwater sound signal refers to that underwater sound signal is transmitted to the monitoring station by source item when walking the time required to；
The azimuth refers to the angle of the array to source item line and direct north；The slowness refers to that signal transmits a radian and taken
Between；What signal association referred to the underwater sound array tracer signal for having monitoring capability to certain event searches plain matching process automatically.
The effective propagation path refers to farthest monitoring distance of the underwater sound station along a certain orientation；
The underwater sound signal transmission separates parameter and refers to centered on the underwater sound station, underwater sound signal on the different directions of definition
Effective propagation path, effective biography due to being influenced by island and land, for some gives the underwater sound station, on different directions
Defeated distance is different；
The lattice point refers to the grid divided to specified region according to a fixed step size；
The lattice point center refers to the center of lattice point, by the entire lattice point of lattice point center representative；
The lattice point step-length refers to the distance between two neighboring lattice point central point；
The association lattice point refers to for the associated lattice point Parameter File of underwater sound platform net, contains every in specified underwater sound platform net
Height platform to the crucial monitoring parameters of each lattice point, monitoring distance, azimuth, theoretical transmission times including each sub- platform and lattice point,
Whether there is monitoring capability, the sub- number of units with monitoring capability and the station number with monitoring capability to lattice point.
Fig. 1 is that the Comprehensive Nuclear Test Ban Treaty international monitoring system underwater sound monitors station distribution map, covers Pacific Ocean, big
The West and the Indian Ocean, can guarantee any region substantially for above-mentioned area has the station that can cover.Water independent for one
For the sound station, generally include two submatrixs (or sub- platform), for convenient for utilize underwater sound array Accurate Determining aspect and speed,
Every height platform includes three independent monitoring unit, and unit interval is in 2km or so；And submatrix spacing is relatively far away from, it is usually tens of
Km, in above-mentioned 11 stations, submatrix is farthest at a distance of 220km.Fig. 2 is the H01 underwater sound station W1 positioned at the Australian angle Lu Yin
Sub- platform signal separates parameter, and the parameter fundamental reaction submatrix can receive the orientation and maximum distance of underwater sound signal.It is right
For the same underwater sound station, due to distributional difference, some submatrixs are distributed in the both ends on island, therefore the signal of different submatrixs
It is different to separate parameter.
For a certain selected sea area, mesh spacing is set, uniform grid is established；For target monitoring sea area, shown in Fig. 1
It selects the station to set up targetedly underwater sound surveillance network in the underwater sound station, is then separated according to the signal of submatrix each in platform net and joined
Number, is successively analyzed according to step 3 to six pairs of each lattice points, determines sub- platform, the signal for having monitoring capability to each lattice point
The sub- number of units and underwater sound station number for being transmitted to the corresponding signal theory parameter of sub- platform, there is monitoring capability to the lattice point, due to water
Acoustical signal decaying is small, therefore does not consider influence of the remote transmission attenuation of signal to monitoring capability.
It needs to be defined associated station number with submatrix number is associated in defining underwater sound event procedure, to guarantee underwater sound event
The accuracy of auto-associating defines one according to the underwater sound auditing events that the Comprehensive Nuclear Test Ban Treaty International Data Center (IDC) submits
A underwater sound event should include at least 2 underwater sound stations and submatrix is no less than 3.Complete the station and signal are monitored for be defined
The association lattice point of parameter, defines standard according to underwater sound event and is screened, and reservation meets the lattice point that event defines standard, thus shape
At the viewpoint lattice point Parameter File for selected sea area underwater sound event platform net.
Embodiment:
1 underwater sound platform gateway of table joins lattice point example of parameters
| Lattice point latitude | Lattice point longitude | ||
| -1 | -161 | ||
| Submatrix (platform) | Distance (°) | Azimuth (°) | When signal is walked (s) |
| H02N1 | - | - | - |
| H02S1 | - | - | - |
| H03N1 | 82.8 | 273.6 | 6202 |
| H03S1 | 82.9 | 273.5 | 6210 |
| H06E1 | 53.0 | 253.8 | 3968 |
| H06N1 | 52.9 | 253.7 | 3966 |
| H06S1 | 52.9 | 253.8 | 3965 |
| H09N1 | - | - | - |
| H09W1 | - | - | - |
| H10N1 | - | - | - |
| H10S1 | - | - | - |
| H11N1 | 37.7 | 119.6 | 2822 |
| H11S1 | 37.3 | 118.1 | 2790 |
| Submatrix number | Station number | Whether can monitor | |
| 7 | 3 | 1 |
According to Fig. 1 international monitoring system underwater sound platform net be distributed, for Pacific waters underwater sound event monitoring be associated with
Demand, six underwater sound stations such as H02, H03, H06, H09, H10, H11 therein can be chosen and establish monitoring network, wherein
The H11 station is located at Wake；Stronger monitoring capability is all had to all directions, H02, H03, H06 are located at American continent West Coast,
Mainly westerly to monitoring；Two stations of H09, H10 are located at the Atlantic Ocean, only have the monitoring window of ten remainings to Pacific waters.Table 1
After carrying out lattice point setting according to 1 ° of step-length, lattice point center is that platform gateway corresponding to (- 1 °, -161 °) lattice point joins lattice point file,
7 submatrixs that can be seen that shared tri- underwater sound stations of H03, H06, H11 from lattice point file have monitoring capability to the lattice point,
And provide when underwater sound event occurs for the lattice point, underwater sound signal is transmitted to the orientation of duration and the station needed for platform and lattice point
Relationship, underwater sound signal accurately matches during above-mentioned parameter can be used for underwater sound platform gateway connection.Fig. 3 is by above-mentioned 6 underwater sounds station institute
The underwater sound surveillance network monitoring capability of building is distributed, and can guarantee 4 or more stations energy simultaneously to Pacific waters most area
It monitors, while also there is certain monitoring capability to the Atlantic Ocean or even Indian Ocean Partial Sea Area.Fig. 4 is according to the underwater sound thing
Part definition requires, and the above-mentioned station underwater sound data determined can be associated with the Regional Distribution to form underwater sound event.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and deformations can also be made, these improvement and deformations
Also it should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of underwater sound platform gateway joins lattice point design method, which comprises the following steps:
S1, the selected required sea area range for carrying out underwater sound Analysis on monitoring data, set lattice point step-length, create network lattice point；
S2, the station is monitored according to the underwater sound in the sea area selected S1 and the sea area circumferential distribution, sets underwater sound surveillance network,
In, for each underwater sound array, classify according to the position Zi Tai, forms multiple submatrixs；
S3, for the sub- platform of same class in each submatrix, the effective propagation path in its underwater sound signal sound hair channel is set separately, presses
The setting of effective propagation path omnidirectional is carried out according to certain azimuthal separation, forms underwater sound array signal transmission partition parameter, including not
Common-azimuth az and its corresponding effective propagation path range；
S4, it is constituted according to underwater sound surveillance network, reads the corresponding azimuth az of each underwater sound array signal transmission partition parameter, press
According to the grid lattice point sequence of S1 creation, using i-th of lattice point centre coordinate and j-th of underwater sound submatrix coordinate, calculate submatrix with often
Space D between a lattice pointijWith the azimuth Azm of submatrix to each lattice pointij, estimate underwater sound signal and be transmitted to from each lattice point
T the time required to underwater sound submatrixij:
Tij=Dij*SH；Wherein, SHFor underwater sound slowness；
S5, the azimuth Azm by lattice pointijThe az in partition parameter is transmitted with underwater sound array signal to be matched, and is found out and lattice point
The immediate orientation angular dimensions az (m) in azimuth, when meeting DijWhen≤range (m), show that underwater sound station submatrix j can be monitored
To underwater sound signal caused by lattice point i, the submatrix number N that there is monitoring capability to lattice point i is countedchanAnd underwater sound station number
Nsta；
Submatrix number D needed for S6, setting underwater sound platform gateway join array parameter requirements, including definition underwater sound eventchanAnd array number Dsta,
Lattice point is retained when the following conditions are met, otherwise deletes lattice point, obtains the specified associated effective lattice point of sea area underwater sound platform net；
Nchan≥DchanAnd Nsta≥Dsta, Nchan≥Nsta。
2. a kind of underwater sound platform gateway according to claim 1 joins lattice point design method, which is characterized in that such as each in S2
The sub- platform of underwater sound array north and south both ends on island are distributed, then tri- sub- platforms of N1, N2, N3 that the North includes are referred to as N submatrix.
3. a kind of underwater sound platform gateway according to claim 1 joins lattice point design method, which is characterized in that the same underwater sound array
Different classes of submatrix is apart from each other, and up to hundred kilometers, and same category of sub- platform is at a distance of relatively close, generally less than 2km.
4. a kind of underwater sound platform gateway according to claim 1 joins lattice point design method, which is characterized in that SHFor 74.879s,
The corresponding velocity of sound is 1485m/s.
5. a kind of underwater sound platform gateway according to claim 1 joins lattice point design method, which is characterized in that in S5, when having one
A above submatrix can monitor to think that its corresponding underwater sound array has monitoring capability, N when signalstaCounting i.e. plus 1.
6. a kind of underwater sound platform gateway according to claim 1 joins lattice point design method, which is characterized in that S6 is determined effective
Lattice point includes lattice point centre coordinate, the submatrix with monitoring capability and its parameter in each lattice point, has monitoring energy to the lattice point
Whether the submatrix and underwater sound array number of power, current underwater sound platform net have monitoring capability to the lattice point.
7. a kind of underwater sound platform gateway according to claim 1 joins lattice point design method, which is characterized in that according to effective lattice point
Rapid matching is carried out to underwater sound array signal to be associated with signal, and primarily determines the generation position of event.
8. a kind of underwater sound platform gateway according to claim 1-7 joins lattice point design method, which is characterized in that described
Effective propagation path refers to farthest monitoring distance of the underwater sound station along a certain orientation.
9. a kind of underwater sound platform gateway according to claim 8 joins lattice point design method, which is characterized in that the lattice point center
The center for referring to lattice point, by the entire lattice point of lattice point center representative.
10. a kind of underwater sound platform gateway according to claim 8 joins lattice point design method, which is characterized in that given to some
For the underwater sound station, the effective propagation path on different directions is different.
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