CN106019229B - Airdrome scene target acoustical localization method, sound sensing device and system - Google Patents
Airdrome scene target acoustical localization method, sound sensing device and system Download PDFInfo
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- CN106019229B CN106019229B CN201610343210.XA CN201610343210A CN106019229B CN 106019229 B CN106019229 B CN 106019229B CN 201610343210 A CN201610343210 A CN 201610343210A CN 106019229 B CN106019229 B CN 106019229B
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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
- G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S5/18—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using ultrasonic, sonic, or infrasonic waves
Abstract
The present invention provides a kind of airdrome scene target acoustical localization method, sound sensing device and system, the airdrome scene target acoustical localization method passes through the different zones in airdrome scene, sonic transducer node array element battle array is laid in different ways, pick up the target sound waves that sonic transducer node array element battle array lays region, based on the information of acoustic wave, scene target is positioned.The sonic transducer node array element battle array can form the fixed space wave beam with spatial selectivity, can obtain the information of acoustic wave with preferable Signal to Interference plus Noise Ratio.Airdrome scene target acoustical localization method, sound sensing device and system provided by the invention, can pick up information of acoustic wave to greatest extent, to the effective suppression of noise, rationally utilize sonic transducer.
Description
Technical field
The present invention relates to acoustic localization technique field, more particularly, to a kind of airdrome scene target acoustical localization method, sound
Sensing device and system.
Background technology
At present, the electromagnetic wave environment complexity of airdrome scene, using the positioning monitoring technology that electromagnetic wave is medium easily by dry
Disturb, cause positioning performance to reduce, or even failure, also, the generally technical sophistication of electromagnetic energy radiation and detection, cost are higher.
Acoustic localization technique positions applied to airdrome scene target, has the advantages of some are unique, such as：Positioning signal easily obtains,
Will not be to ambient radiation energy；Not by airport electromagnetic environmental impact；Equipment volume is small, cost is low, remote deployment is convenient.Sound
Learning positioning enjoys researcher to pay attention to.
But the sound field of airdrome scene has complexity and polytropy, there can be muli-sounds signal, such as：Not in unison
Reflection of the various barriers such as irrelevant signal, ground, building in source to sound wave, low flyer noise, far field sound source mesh
Mark interference etc..Under much noise and the airport complex environment of interference, it is difficult to obtain preferable Signal to Interference plus Noise Ratio, be not easy to realize the world
Target with high precision as defined in civil aviation organization positions.International Civil Aviation Organization provides that below 7.5m airdrome scene target location accuracy will
Ask.To realize effective positioning of acoustic target, sound source reception device (for example, microphone) is needed to provide sufficient acoustic information.If
The laying number of sound source reception device is more, can provide enough acoustic informations to a certain extent, but at subsequent array signal
The complexity of reason rises, and target positional accuracy declines, also, most sound source reception devices can not be that follow-up acoustic target positions
Informational support is provided, or sound source reception device can not be accessed and more fully applied, utilization rate of equipment and installations is low.If sound source reception device
Number reduce, and laying structure is unreasonable, or in the signal that receives of sound source reception device, noise or interference are more, effectively letter
Number less, then the sound source reception device can not position for follow-up acoustic target and provide Informational support, equally, can also reduce target and determine
Level exactness, influence the positioning of aircraft.
In order to pick up information of acoustic wave to greatest extent, noise is effectively suppressed, how rationally to receive dress using sound source
Put, the problem of being those skilled in the art's urgent need to resolve.
The content of the invention
The present invention is intended to provide a kind of airdrome scene target acoustical localization method, sound sensing device and system, can be maximum
Information of acoustic wave is picked up to limit, to the effective suppression of noise, rationally utilizes sonic transducer.
In a first aspect, the present invention provides a kind of airdrome scene target acoustical localization method, it is described as follows：
The present invention provides a kind of airdrome scene target acoustical localization method, comprises the following steps that：
Step S1, according to the different zones of airdrome scene, sonic transducer node array element battle array is laid, picks up sonic transducer node
Array element battle array lays the target sound waves in region；
Step S2, the information of acoustic wave obtained based on sonic transducer node array element battle array, is positioned to scene target.
Further, in step sl, the sonic transducer node array element battle array of straight line airfield runway is laid in the following way：
Sonic transducer node array element battle array is symmetrically and evenly laid in straight line airfield runway both sides, forms linear sonic transducer node array element battle array
Row, for sonic transducer node array element formation into the first fixed space wave beam, the first fixed space wave beam has first to overlook sector angle
With first angle of pitch so that the first fixed space wave beam pickup straight line airfield runway target sound waves.
Further, in step sl, the sonic transducer node array element battle array of airport contact bend is laid in the following way：
Sonic transducer node array element battle array is laid in airport contact bend both sides, and side where getting in touch with the center of circle of bend lay number less than pair
The laying number of side, forms bending-type sonic transducer node array element array, and sonic transducer node array element formation is fixed empty into second
Between wave beam, the second fixed space wave beam has second to overlook sector angle and second angle of pitch, so that the second fixed space wave beam picks up
Take the target sound waves of contact bend.
Further, the second fixed space wave beam includes fixed space wave beam and the second outer fixed space wave beam in second,
Covering of the fan angle is overlooked outside the second of second outer fixed space wave beam and is less than vertical view covering of the fan in second of fixed space wave beam in second
Angle, in second fixed space wave beam by the sonic transducer array element formation positioned at side where the contact bend center of circle into solid outside second
Determine spatial beams by positioned at contact bend center of circle opposite side sonic transducer array element formation into.
Further, in step sl, the sonic transducer node array element battle array in airport right-angled bend road cloth in the following way
If：Sonic transducer node array element battle array is laid in airport right-angled bend road both sides, and side laying where the center of circle in right-angled bend road
Number is less than the laying numbers of offside, form right angle formula sonic transducer node array element array, and sonic transducer node array element formation is into the
Three fixed space wave beams, the 3rd fixed space wave beam has the 3rd to overlook sector angle and the 3rd angle of pitch, so that the 3rd fixes sky
Between wave beam pickup right-angled bend road target sound waves.
Further, covering of the fan angle is overlooked outside the 3rd of the 3rd outer fixed space wave beam and is less than fixed space wave beam in the 3rd
The 3rd in overlook covering of the fan angle, the 3rd fixed space wave beam include the 3rd in fixed space wave beam and the 3rd outer fixed space ripple
Beam, in the 3rd fixed space wave beam by the sonic transducer array element formation positioned at side where the right-angled bend road center of circle into solid outside the 3rd
Determine spatial beams by the sonic transducer array element formation positioned at right-angled bend road center of circle opposite side into.
Based on above-mentioned any airdrome scene target acoustical localization method embodiment, further, the first vertical view sector angle is small
Sector angle is overlooked in second, second, which overlooks sector angle, is less than the 3rd vertical view sector angle.
Airdrome scene target acoustical localization method provided by the invention, this method by the different zones in airdrome scene,
Sonic transducer node array element battle array is laid in different ways, and the sonic transducer node array element formation is into consolidating with spatial selectivity
Determine spatial beams, the target sound waves in laid region can be picked up to greatest extent, suppression ground sound clutter, far field are miscellaneous as far as possible
Involve noise, reduce interference sound source number, be advantageous to obtain preferable Signal to Interference plus Noise Ratio, further according to the information of acoustic wave of acquisition, to field
Area Objects are positioned.The airdrome scene target acoustical localization method can pick up information of acoustic wave to greatest extent, have to noise
Effect suppresses, and rationally using sonic transducer, scene target is positioned with fast and effective.
Second aspect, the present invention provide a kind of airdrome scene target sound sensing device, and it is described as follows：
The present invention provides a kind of airdrome scene target sound sensing device, and the device includes linear sonic transducer node array element
Array, bending-type sonic transducer node array element array and right-angle type sonic transducer node array element array.Linear sonic transducer section
Dot matrix element array includes symmetrically and evenly being laid in the sonic transducer node array element battle array of straight line airfield runway both sides, sonic transducer node
Array element formation is into the first fixed space wave beam that sector angle and first angle of pitch are overlooked with first, so that the first fixed space ripple
Beam picks up the target sound waves of straight line airfield runway.Bending-type sonic transducer node array element array includes being laid in airport contact bend
The laying number that number is less than offside is laid in the sonic transducer node array element battle array of both sides, side where getting in touch with the center of circle of bend, and sound passes
Sensor node array element formation is into the second fixed space wave beam that sector angle and second angle of pitch are overlooked with second, so that second is solid
Determine the target sound waves of spatial beams pickup contact bend.Right-angle type sonic transducer node array element array includes being laid in airport right angle
Laying of the number less than offside is laid in the sonic transducer node array element battle array of turning road both sides, side where the center of circle in right-angled bend road
Number, sonic transducer node array element formation into the 3rd fixed space wave beam that sector angle and the 3rd angle of pitch are overlooked with the 3rd, with
Make the target sound waves in the 3rd fixed space wave beam pickup right-angled bend road.
Airdrome scene target sound sensing device provided by the invention, the sound sensing device include linear sonic transducer node
Array element array, bending-type sonic transducer node array element array and right-angle type sonic transducer node array element array.According to airdrome scene
Different zones, lay sonic transducer node array element battle array.Linear sonic transducer node array element array is located at straight line airfield runway
Both sides, bending-type sonic transducer node array element array are located at airport contact bend both sides, right-angle type sonic transducer node array element battle array
Row are located at airport right-angled bend road both sides.The sound sensing device that different zones are laid can be formed with different vertical view sector angles
Fixed space wave beam, covering straight line airfield runway, airport contact bend and airport right-angled bend road, to pick up three kinds of traffic patterns
Target sound waves.Meanwhile the fixed space wave beam has the angle of pitch, the intersection region of fixed space wave beam is set to fall as far as possible in mesh
The concentrated area of sound wave is marked, to form the fixed space wave beam with spatial selectivity, target sound can be picked up to greatest extent
Ripple, suppress ground sound clutter, far field clutter and noise, obtain preferable Signal to Interference plus Noise Ratio, rationally utilize sonic transducer.
The third aspect, the present invention provide a kind of target acoustical alignment system of airdrome scene, and it is described as follows：
The present invention provides a kind of target acoustical alignment system of airdrome scene, and the alignment system includes airdrome scene target sound
Sensing device, and processor, information of acoustic wave of the processor for receiving the reception of airdrome scene target sound sensing device, and according to
Information of acoustic wave, scene target is positioned.
The target acoustical alignment system of airdrome scene provided by the invention, the alignment system are passed by airdrome scene target sound
Induction device forms the fixed space wave beam with spatial selectivity, to gather the target sound waves of airdrome scene different zones, and
Interference and noise can be suppressed, then information of acoustic wave is handled by processor, because the information of acoustic wave of acquisition has ideal
Signal to Interference plus Noise Ratio, be advantageous to position scene target.
Therefore, airdrome scene target acoustical localization method, sound sensing device and system provided by the invention, being capable of maximum limit
Degree ground pickup acoustic target signal, to the effective suppression of noise, rationally utilizes sonic transducer.
Brief description of the drawings
Fig. 1 is the method flow diagram that airdrome scene target acoustical localization method of the present invention provides；
Fig. 2 is that one that airdrome scene target acoustical localization method of the present invention provides is based on straight line airport track object acoustics
Localization method flow chart；
Fig. 3 is that one that airdrome scene target acoustical localization method of the present invention provides is positioned based on contact bend target acoustical
Method flow diagram；
Fig. 4 is that one that airdrome scene target acoustical localization method of the present invention provides is based on airport right-angled bend road target sound
Learn localization method flow chart；
Fig. 5 is the top view that airdrome scene target sound sensing device of the present invention provides；
Fig. 6 is that airdrome scene target sound sensing device of the present invention provides linear sonic transducer node array element array signal
Figure；
Fig. 7 is that airdrome scene target sound sensing device of the present invention provides the signal of bending-type sonic transducer node array element array
Figure；
Fig. 8 is that airdrome scene target sound sensing device of the present invention provides the signal of right-angle type sonic transducer node array element array
Figure；
Fig. 9 is the sectional view that airdrome scene target sound sensing device of the present invention provides.
Embodiment
The present invention is further illustrated below by specific embodiment, it should be understood, however, that, these embodiments are only
It is used for specifically describing in more detail, and is not to be construed as limiting the present invention in any form.
In a first aspect, the present embodiment provides a kind of airdrome scene target acoustical localization method, it is described as follows：
The present embodiment provides a kind of airdrome scene target acoustical localization method, with reference to Fig. 1, comprises the following steps that：
Step S1, according to the different zones of airdrome scene, sonic transducer node array element battle array is laid, picks up sonic transducer node
Array element battle array lays the target sound waves in region；
Step S2, the information of acoustic wave obtained based on sonic transducer node array element battle array, is positioned to scene target.
The airdrome scene target acoustical localization method that the present embodiment provides, this method pass through in the not same district of airdrome scene
Domain, lays different sonic transducer node array element battle arrays, and the sonic transducer node array element formation is into the fixation with spatial selectivity
Spatial beams, the target sound waves in laid region can be picked up to greatest extent, suppress ground sound clutter, far field clutter as far as possible
And noise, interference sound source number is reduced, is advantageous to obtain preferable Signal to Interference plus Noise Ratio, further according to the information of acoustic wave of acquisition, to scene
Target is positioned.The airdrome scene target acoustical localization method can pick up information of acoustic wave to greatest extent, effective to noise
Suppress, rationally using sonic transducer, scene target is positioned with fast and effective.
It is preferably based on the straight line airfield runway of airdrome scene, the present embodiment airdrome scene target acoustical localization method, knot
Fig. 2 is closed, is comprised the following steps that：
Step S21, the sonic transducer node array element battle array of straight line airfield runway are laid in the following way：Sonic transducer node
Array element battle array is laid in straight line airfield runway both sides, forms linear sonic transducer node array element array, sonic transducer node array element
For formation into the first fixed space wave beam, the first fixed space wave beam has first to overlook sector angle and first angle of pitch, so that the
One fixed space wave beam picks up the target sound waves of straight line airfield runway；Wherein, in order to enter to the target sound waves of straight line airfield runway
Row effectively extraction, and suppress noise or the interference in other directions, the first vertical view sector angle is no more than 180 degree, and multiple first is solid
The road face of straight line airfield runway can be covered by determining spatial beams.Simultaneously as the engine of aircraft has certain height apart from ground
Degree, for suppression ground return and high-altitude noise or interference, the angular range on first angle of pitch and ground is about 5 °~20 °.
Step S22, the information of acoustic wave obtained based on linear sonic transducer node array element array, is determined scene target
Position.
Straight line airfield runway feature based on airdrome scene, sonic transducer node array element battle array are symmetrically distributed in the race of straight line airport
Road both sides, formed with the first the first fixed space waveform for overlooking sector angle and first angle of pitch.First fixed space wave beam
Sector angle is overlooked with first, can adapt to the linear characteristic of straight line airfield runway, and cover straight line airfield runway.First fixes
Spatial beams also have the angle of pitch, to pick up the target sound waves of certain altitude above straight line airfield runway as far as possible, suppress low and face upward
The ground sound clutter at angle, distally involve noise of low flyer etc..From the angle of airspace filter, the first fixed space wave beam
Target sound waves information can be picked up to greatest extent, suppressed noise or/and interference, obtained preferable Signal to Interference plus Noise Ratio.
It is preferably based on the airport contact bend of airdrome scene, the present embodiment airdrome scene target acoustical localization method, knot
Fig. 3 is closed, is comprised the following steps that：
Step S31, the sonic transducer node array element battle array of airport contact bend are laid in the following way：Sonic transducer node
Array element battle array is laid in airport contact bend both sides, and laying of the number less than offside is laid in the center of circle place side for getting in touch with bend
Number, form bending-type sonic transducer node array element array, sonic transducer node array element formation into second overlook sector angle and
Second fixed space wave beam of second angle of pitch, so that the target sound waves of the second fixed space wave beam pickup contact bend；Due to
The engine of aircraft has certain height apart from ground, to suppress ground return and high-altitude noise or interference, the second pitching
The angular range on angle and ground is about 5 °~20 °.
Step S32, the information of acoustic wave obtained based on bending-type sonic transducer node array element array, is determined scene target
Position.
The bending characteristicses of airport contact bend based on airdrome scene, sonic transducer node array element battle array are laid in airport contact
Bend both sides, and the laying number of both sides is different, takes into account junction plurality of passages, have second to overlook sector angle and the to be formed
Second fixed space wave beam of two angles of pitch.Second fixed space wave beam has spatial selectivity, can pick up contact as far as possible
Target sound waves above bend, suppress the ground sound clutter at the low elevation angle and the noise of low flyer etc..
Preferably, the second fixed space wave beam includes fixed space wave beam and the second outer fixed space wave beam in second, the
Covering of the fan angle is overlooked outside the second of two outer fixed space wave beams and is less than vertical view sector angle in second of fixed space wave beam in second
Degree, in second fixed space wave beam by the sonic transducer array element formation positioned at side where the contact bend center of circle into fixed outside second
Spatial beams by positioned at contact bend center of circle opposite side sonic transducer array element formation into.Wherein, in order to airport contact bend
Target sound waves effectively extracted, and suppress noise or the interference in other directions, overlooking sector angle outside second is less than 180 degree,
Sector angle is overlooked in second and is more than 180 degree, and multiple second fixed space wave beams can cover the road face of airport contact bend, or
Runway, the taxiway etc. being connected with contact bend, are advantageous to more fully pick up target sound waves, suppress noise or/and interference.
It is preferably based on the airport right-angled bend road of airdrome scene, the present embodiment airdrome scene target acoustical localization method,
With reference to Fig. 4, comprise the following steps that：
Step S41, the sonic transducer node array element battle array in airport right-angled bend road are laid in the following way：Sonic transducer section
Point array element battle array is laid in airport right-angled bend road both sides, and the cloth that number is less than offside is laid in side where the center of circle in right-angled bend road
If number, form right angle formula sonic transducer node array element array, sonic transducer node array element formation into the 3rd fixed space wave beam,
3rd fixed space wave beam has the 3rd to overlook sector angle and the 3rd angle of pitch, and the 3rd fixed space wave beam is used to pick up right angle turn
The target sound waves of bend；Because the engine of aircraft has certain height apart from ground, to suppress ground return and high-altitude
The angular range on noise or interference, the 3rd angle of pitch and ground is about 5 °~20 °.
Step S42, the information of acoustic wave obtained based on right-angle type sonic transducer node array element array, is determined scene target
Position.
The right angle feature in the airport right-angled bend road based on airdrome scene, such as the turning of perpendicular type, tee T, sound sensing
Device node array element battle array is laid in airport right-angled bend road both sides, and the laying number of both sides is different, has the 3rd to overlook to be formed
3rd fixed space wave beam of sector angle and the 3rd angle of pitch, it is ensured that the 3rd fixed space wave beam can cover airport right-angled bend
Road, and the intersection region of the 3rd fixed space wave beam is as consistent with the concentrated area of target sound waves as possible, makes the 3rd fixation empty
Between wave beam there is spatial selectivity, pick up target sound waves as far as possible, suppress noise or/and interference.
Preferably, covering of the fan angle is overlooked outside the 3rd of the 3rd outer fixed space wave beam and is less than fixed space wave beam in the 3rd
Covering of the fan angle is overlooked in 3rd, the 3rd fixed space wave beam includes fixed space wave beam and the 3rd outer fixed space ripple in the 3rd
Beam, in the 3rd fixed space wave beam by the sonic transducer array element formation positioned at side where the right-angled bend road center of circle into solid outside the 3rd
Determine spatial beams by the sonic transducer array element formation positioned at right-angled bend road center of circle opposite side into.Wherein, in order to airport right angle
The target information in turning road is effectively extracted, and suppresses noise or the interference in other directions, and overlooking sector angle outside the 3rd is less than
180 degree, the 3rd interior sector angle of overlooking is more than 180 degree, and multiple 3rd fixed space wave beams can cover airport right-angled bend road
Road face, to take into account the plurality of passages of junction, or runway, the taxiway etc. being connected with airport right-angled bend road, be advantageous to
More fully pick up target sound waves.
Based on above-mentioned any airdrome scene target acoustical localization method embodiment, it is preferable that the first vertical view sector angle is less than
Second overlooks sector angle, and second, which overlooks sector angle, is less than the 3rd vertical view sector angle.Straight line airfield runway based on airdrome scene, connection
Network bend and airport right-angled bend road, it has right angle characteristic, flexural property and right angle characteristic respectively, to adapt to its characteristic, and
Guarantee the target sound waves comprehensively effectively above pickup airdrome scene different zones, what its vertical view covering of the fan angle increased successively consolidates
Determine spatial beams, effective target sound wave can be picked up to greatest extent.
Second aspect, the present embodiment also provide a kind of airdrome scene target sound sensing device, are described as follows：
The present embodiment provides a kind of airdrome scene target sound sensing device, and with reference to Fig. 5, the positioner includes linear sound
Sensor node array element array, bending-type sonic transducer node array element array and right-angle type sonic transducer node array element array.
Linear sonic transducer node array element array includes symmetrically and evenly being laid in the sound sensing of straight line airfield runway both sides
Device node array element battle array, sonic transducer node array element formation are empty into the first fixation that sector angle and first angle of pitch are overlooked with first
Between wave beam, the first fixed space wave beam is used to pick up the target sound waves of straight line airfield runway.With reference to Fig. 6, in straight line airfield runway
Both sides, symmetrical linear sonic transducer node array element array, such as the first NEA sonic transducer array elements battle array 61, the 2nd NEA sound
The distribution characteristics of sensor array element battle array 62, the 3rd NEA sonic transducer array elements battle array 63 and the 4th NEA sonic transducer array elements battle array 64, its
First node fixed space wave beam 611, section point fixed space wave beam 621, the 3rd node fixed space wave beam are formed respectively
631 and fourth node fixed space wave beam 641, from depression angle, there is each fixed space wave beam identical first to overlook fan
Face angle, its angle is no more than 180 °, and can cover straight line airfield runway, is flown with picking up target above straightaway to greatest extent
The acoustic signals of row device 60.Each fixed space wave beam has an angle of pitch of identical first simultaneously, and its angular range is 5 °~
20°。
Bending-type sonic transducer node array element array includes being laid in the sonic transducer node battle array of airport contact bend both sides
The laying number that number is less than offside is laid in first battle array, side where getting in touch with the center of circle of bend, and sonic transducer node array element formation is into tool
There is the second fixed space wave beam of the second vertical view sector angle and second angle of pitch, it is curved that the second fixed space wave beam is used for pickup contact
The target sound waves in road.With reference to Fig. 7, in the both sides of contact bend, sonic transducer node array element battle array is laid, such as the first NEA sound senses
Device array element battle array 71, the 2nd NEA sonic transducer array elements battle array 72, the 3rd NEA sonic transducer array elements battle array 73, the 4th NEA sound sensor arrays
First NEA sonic transducer array elements battle array 75 of battle array 74 and the 5th, form first node fixed space wave beam 711 respectively, section point is fixed
Spatial beams 721, the 3rd node fixed space wave beam 731, fourth node fixed space wave beam 741 and the 5th node fixed space
Wave beam 751.As the first NEA sonic transducer array elements battle array 71 and the 4th NEA sonic transducer array elements battle array 74 are located at contact bend respectively
Side where the center of circle, such as the 2nd NEA sonic transducer array elements battle array 72, the 3rd NEA sonic transducer array elements battle array 77 and the 5th NEA sonic transducers
For array element battle array 75 positioned at the offside of side where the center of circle of contact bend, the second of its fixed space wave beam, which overlooks sector angle, is more than straight line
The first of the fixed space waveform of airfield runway overlooks sector angle, and sector angle is overlooked outside second and is less than 180 degree, is overlooked in second
Sector angle is more than 180 degree, and multiple fixed space wave beams can cover the road face of airport contact bend.Each fixed space ripple simultaneously
Beam has the angle of pitch of identical second, and its angular range is 5 °~20 °.
Right-angle type sonic transducer node array element array includes the sonic transducer node for being laid in airport right-angled bend road both sides
Array element battle array, the laying number that number is less than offside, sonic transducer node array element formation are laid in side where the center of circle in right-angled bend road
Into the 3rd fixed space wave beam that sector angle and the 3rd angle of pitch are overlooked with the 3rd, the 3rd fixed space wave beam is used to pick up directly
The target sound waves in angle turning road.With reference to Fig. 8, in the both sides in airport right-angled bend road, sonic transducer node array element battle array is laid, such as the
One NEA sonic transducer array elements battle array 81, the 2nd NEA sonic transducer array elements battle array 82, the 3rd NEA sonic transducer array elements battle array 83, the 4th NEA
Sonic transducer array element battle array 84, the 5th NEA sonic transducer array elements battle array 85 and the 6th NEA sonic transducer array elements battle array 86, it forms first
Node fixed space wave beam 811, section point fixed space wave beam 821, the 3rd node fixed space wave beam 831, fourth node
Fixed space wave beam 841, the 5th node fixed space wave beam 851 and the 6th node fixed space wave beam 861, it overlooks sector angle
Degree is all higher than getting in touch with the vertical view sector angle of the second fixed space wave beam of bend, and sector angle is overlooked outside the 3rd and is less than 180 degree, the
Sector angle is overlooked in three and is more than 180 degree, the acoustic signals above the right-angled bend road of airport can be picked up, suppress interference and noise.
Each fixed space wave beam has the angle of pitch of identical second simultaneously, and its angular range is 5 °~20 °.With reference to Fig. 9, the airport field
The fixed space wave beam that Area Objects sound sensing device is formed has the angle of pitch, such as on straight line airfield runway, contact bend or airport
The both sides in right-angled bend road, provided with the first sonic transducer array element battle array 91 and the second sound sensor array member battle array 92, it forms tool respectively
There are the first node fixed space wave beam 911 and section point fixed space wave beam 922 of the angle of pitch, the intersection region of two wave beams is use up
It may fall in the concentrated area of target sound waves, target sound waves can be picked up to greatest extent, suppress ground clutter, distal end or low latitude and make an uproar
Sound.
The present embodiment airdrome scene target sound sensing device, the sound sensing device include linear sonic transducer node array element
Array, bending-type sonic transducer node array element array and right-angle type sonic transducer node array element array.According to airdrome scene not
Same region, lay different sound sensing devices.Linear sonic transducer node array element array is located at straight line airfield runway both sides, with
Adapt to the linear characteristic of straight line airfield runway.Bending-type sonic transducer node array element battle array is located at airport contact bend both sides, with suitable
Answer the flexural property of airport contact bend.Right-angle type sonic transducer node array element battle array is located at airport right-angled bend road both sides, with suitable
Answer the right angle characteristic in airport right-angled bend road.Different zones lay sound sensing device, can be formed with overlook sector angle according to
The fixed space wave beam of secondary increase, covering straight line airfield runway, airport contact bend and airport right-angled bend road, with three kinds of pickup
Target sound waves above traffic pattern.Meanwhile land clutter area, acoustical signal area and low above airdrome scene successively from down to up be present
Empty noise range, such as low flyer noise.The fixed space wave beam has the angle of pitch, to make it have spatial selectivity, i.e.,
The intersection region of fixed space wave beam falls as far as possible can be by sky in the concentrated area of target sound waves, fixed space wave beam so
Between be divided into multiple different regions, such as ground bounce removal area, acoustical signal concentration zones and low latitude noise suppressed area, the airdrome scene mesh
Mark sound sensing device is capable of the target sound waves of pick-up of acoustic signals enhancement region to greatest extent, suppresses ground sound clutter, distal end ground
Noise and low latitude noise, obtain preferable Signal to Interference plus Noise Ratio, rationally utilize sonic transducer.
The third aspect, the present embodiment also provide a kind of target acoustical alignment system of airdrome scene, are described as follows：
The present embodiment provides a kind of target acoustical alignment system of airdrome scene, and the alignment system includes airdrome scene target
Sound sensing device, and processor, processor are used for the information of acoustic wave for receiving the reception of airdrome scene target sound sensing device, and root
According to information of acoustic wave, scene target is positioned.
The target acoustical alignment system for the airdrome scene that the present embodiment provides, the alignment system pass through airdrome scene target sound
Sensing device forms the fixed space wave beam with spatial selectivity, and fixed space wave beam has certain vertical view sector angle and bowed
The elevation angle, the airdrome scene target sound sensing device is obtained target sound waves information to greatest extent, suppress ground clutter, distal end
Noise and low latitude noise, obtain preferable Signal to Interference plus Noise Ratio.The sound wave that processor receives according to airdrome scene target sound sensing device
Information, scene target is positioned, because airdrome scene target sound sensing device can obtain the sound wave of preferable Signal to Interference plus Noise Ratio
Information, location Calculation complexity can be reduced, be advantageous to position scene target.
Although present invention has been a certain degree of description, it will be apparent that, do not departing from the spirit and scope of the present invention
Under the conditions of, the appropriate change of each condition can be carried out.It is appreciated that the invention is not restricted to embodiment, and it is attributed to claim
Scope, it includes the equivalent substitution of each factor.
Claims (6)
1. a kind of airdrome scene target acoustical localization method, it is characterised in that comprise the following steps：
Step S1, according to the straight line airfield runway of airdrome scene, sonic transducer node array element battle array is laid in the straight line airport and run
Road both sides, form linear sonic transducer node array element array, and the sonic transducer node array element formation is into the first fixed space
Wave beam, the first fixed space wave beam has first to overlook sector angle and first angle of pitch, so that first fixed space
Wave beam picks up the target sound waves of the straight line airfield runway；
Bend is got in touch with according to the airport of airdrome scene, sonic transducer node array element battle array is laid in the airport contact bend both sides,
And the laying number that number is less than offside is laid in side where the center of circle of the contact bend, forms bending-type sonic transducer node battle array
Element array, for the sonic transducer node array element formation into the second fixed space wave beam, the second fixed space wave beam has the
Two overlook sector angle and second angle of pitch, so that the target sound waves of the second fixed space wave beam pickup contact bend；
According to the airport right-angled bend road of airdrome scene, sonic transducer node array element battle array is laid in the airport right-angled bend road two
Side, and the laying number that number is less than offside, form right angle formula sonic transducer are laid in side where the center of circle in the right-angled bend road
Node array element array, the sonic transducer node array element formation is into the 3rd fixed space wave beam, the 3rd fixed space wave beam
Sector angle and the 3rd angle of pitch are overlooked with the 3rd, so that the 3rd fixed space wave beam picks up the mesh in the right-angled bend road
Mark sound wave；
Step S2, the information of acoustic wave obtained based on the sonic transducer node array element battle array, is positioned to scene target.
2. airdrome scene target acoustical localization method according to claim 1, it is characterised in that
The second fixed space wave beam includes fixed space wave beam and the second outer fixed space wave beam in second,
Covering of the fan angle is overlooked outside the second of second outer fixed space wave beam and is less than vertical view in second of fixed space wave beam in second
Covering of the fan angle,
In described second fixed space wave beam by the sonic transducer array element formation positioned at side where the contact bend center of circle into,
The second outer fixed space wave beam by positioned at it is described contact bend center of circle opposite side sonic transducer array element formation into.
3. airdrome scene target acoustical localization method according to claim 1, it is characterised in that
Covering of the fan angle is overlooked outside the 3rd of 3rd outer fixed space wave beam and is less than vertical view in the 3rd of fixed space wave beam in the 3rd
Covering of the fan angle,
The 3rd fixed space wave beam includes fixed space wave beam and the 3rd outer fixed space wave beam in the described 3rd, institute
State fixed space wave beam in the 3rd by the sonic transducer array element formation positioned at side where the right-angled bend road center of circle into,
The 3rd outer fixed space wave beam by the sonic transducer array element formation positioned at right-angled bend road center of circle opposite side into.
4. airdrome scene target acoustical localization method according to claim 3, it is characterised in that
Described first, which overlooks sector angle, is less than the described second vertical view sector angle,
Described second, which overlooks sector angle, is less than the described 3rd vertical view sector angle.
A kind of 5. airdrome scene target sound sensing device, it is characterised in that including：
Linear sonic transducer node array element array, including symmetrically it is laid in the sonic transducer section of straight line airfield runway both sides
Point array element battle array, the sonic transducer node array element formation are empty into the first fixation that sector angle and first angle of pitch are overlooked with first
Between wave beam so that the first fixed space wave beam picks up the target sound waves of the straight line airfield runway,
Bending-type sonic transducer node array element array, including it is laid in the sonic transducer node array element of airport contact bend both sides
The laying number that number is less than offside, the sonic transducer node array element shape are laid in battle array, side where the center of circle of the contact bend
Into the second fixed space wave beam that sector angle and second angle of pitch are overlooked with second, so that the second fixed space wave beam picks up
The target sound waves of the contact bend are taken,
Right-angle type sonic transducer node array element array, including it is laid in the sonic transducer node array element of airport right-angled bend road both sides
Battle array, the laying number that number is less than offside is laid in side where the center of circle in the right-angled bend road, and being formed has the 3rd to overlook covering of the fan
Angle and the 3rd fixed space wave beam of the 3rd angle of pitch, so that the 3rd fixed space wave beam picks up the right-angled bend road
Target sound waves.
A kind of 6. target acoustical alignment system of airdrome scene, it is characterised in that including：
Airdrome scene target sound sensing device as claimed in claim 5；And
Processor, the information of acoustic wave received for receiving the airdrome scene target sound sensing device, and believed according to the sound wave
Breath, is positioned to scene target.
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| CN110031554B (en) * | 2019-03-26 | 2021-07-23 | 深圳市理邦精密仪器股份有限公司 | Array element positioning method and device of flexible ultrasonic transducer and terminal |
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| US8773289B2 (en) * | 2010-03-24 | 2014-07-08 | The Boeing Company | Runway condition monitoring |
| CN105403860B (en) * | 2014-08-19 | 2017-10-31 | 中国科学院声学研究所 | A kind of how sparse sound localization method related based on domination |
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