CN106019229A - Acoustic positioning method and system and sound sensing device of airport surface object - Google Patents
Acoustic positioning method and system and sound sensing device of airport surface object Download PDFInfo
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- CN106019229A CN106019229A CN201610343210.XA CN201610343210A CN106019229A CN 106019229 A CN106019229 A CN 106019229A CN 201610343210 A CN201610343210 A CN 201610343210A CN 106019229 A CN106019229 A CN 106019229A
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- sonic transducer
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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 invention provides an acoustic positioning method and system and a sound sensing device of an airport surface object. According to the acoustic positioning method, a sound sensor node element array is laid in different areas of the airport surface in different manners, sound waves of the object in the laying area of the sound sensor node element array are picked up, and the surface object is positioned on the basis of sound wave information. The sound sensor node element array can form a fixed space wave beam with spatial selectively, and sound wave information of an ideal SINR. According to the method, system and device of the invention, the sound wave information can be picked up to the largest extent, noises can be inhibited effectively, and a sound sensor is utilized reasonably.
Description
Technical field
The present invention relates to acoustic localization technique field, especially relate to a kind of airdrome scene target acoustical localization method, sound sensing dress
Put and system.
Background technology
At present, the electromagnetic wave environment of airdrome scene is complicated, and the positioning monitoring technology with electromagnetic wave as medium is easily subject to interference, leads
Cause positioning performance reduces, and even loses efficacy, and, the radiation of usual electromagnetic energy and the technical sophistication of detection, relatively costly.Acoustics
Location technology is applied to airdrome scene target and positions, the advantage with some uniquenesses, such as: framing signal easily obtains, and will not
To ambient radiation energy；Not by airport electromagnetic environmental impact；Equipment volume is little, low cost, remote deployment convenient.Acoustics
Location enjoys researcher to pay attention to.
But, the sound field of airdrome scene has complexity and polytropy, can there is muli-sounds signal, such as: different sound sources
Irrelevant signal, the reflection to sound wave of the various barrier such as ground, building, low flyer noise, far field acoustic target is done
Disturb.Under the airport complex environment of much noise and interference, it is difficult to obtain preferable Signal to Interference plus Noise Ratio, it is difficult to realize International Civil Aviation
The target with high precision location of organization prescribed.International Civil Aviation Organization specifies the airdrome scene target location accuracy requirement of below 7.5m.
For realizing effective location of acoustic target, sound source is needed to receive the acoustic information that device (such as, mike) provides sufficient.If sound
The laying number that source receives device is more, can provide enough acoustic informations to a certain extent, but subsequent array signal processing
Complexity rises, and target positional accuracy declines, and, most sound sources receive device and can not provide for follow-up acoustic target location
Informational support, or sound source receive device can not be applied more fully, utilization rate of equipment and installations is low.If sound source receives the individual of device
Number reduces, and laying structure is unreasonable, or sound source receives in the signal that device receives, noise or disturb more, and useful signal is relatively
Few, then this sound source receives device and can not provide Informational support for follow-up acoustic target location, equally, also can reduce target location standard
Exactness, affects the location of aircraft.
In order to pick up information of acoustic wave to greatest extent, effectively suppressing noise, how Appropriate application sound source receives device, is
The problem that those skilled in the art need solution badly.
Summary of the invention
It is desirable to provide a kind of airdrome scene target acoustical localization method, sound sensing device and system, it is possible to greatest extent
Pickup information of acoustic wave, suppression effective to noise, Appropriate application sonic transducer.
First aspect, the present invention provides a kind of airdrome scene target acoustical localization method, and it is described as follows:
The present invention provides a kind of airdrome scene target acoustical localization method, specifically comprises the following steps that
Step S1, according to the zones of different of airdrome scene, lays sonic transducer node array element battle array, picks up sonic transducer node battle array
Unit's 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, scene target is positioned.
Further, in step sl, the sonic transducer node array element battle array of straight line airfield runway is laid in the following way: sound
Sensor node array element battle array is laid in straight line airfield runway both sides symmetrically and evenly, constitutes orthoscopic sonic transducer node array element array,
Sonic transducer node array element formation becomes the first fixed space wave beam, the first fixed space wave beam to have the first vertical view sector angle and first
The angle of pitch, so that the target sound waves of the first fixed space wave beam pickup straight line airfield runway.
Further, in step sl, the sonic transducer node array element battle array of airport contact bend is laid in the following way: sound
Sensor node array element battle array is laid in contact bend both sides, airport, and number is laid less than offside in the side, place, the center of circle of contact bend
Laying number, constitute bending-type sonic transducer node array element array, sonic transducer node array element formation becomes the second fixed space wave beam,
Second fixed space wave beam has the second vertical view sector angle and second angle of pitch, so that the second fixed space wave beam pickup contact bend
Target sound waves.
Further, the second fixed space wave beam include second in fixed space wave beam and the second extenal fixation spatial beams, outside second
The second of fixed space wave beam interior covering of the fan angle of overlooking in vertical view covering of the fan angle is less than second outside the second of fixed space wave beam, second
Interior fixed space wave beam by be positioned at contact side, place, the bend center of circle sonic transducer array element formation become, the second extenal fixation spatial beams by
The sonic transducer array element formation being positioned at contact bend center of circle opposite side becomes.
Further, in step sl, the sonic transducer node array element battle array in airport right-angled bend road is laid in the following way:
Sonic transducer node array element battle array is laid in both sides, right-angled bend road, airport, and the side, place, the center of circle in right-angled bend road is laid number and is less than
The laying number of offside, form right angle formula sonic transducer node array element array, sonic transducer node array element formation becomes the 3rd fixing sky
Between wave beam, the 3rd fixed space wave beam has the 3rd vertical view sector angle and the 3rd angle of pitch, so that the 3rd fixed space wave beam pickup
The target sound waves in right-angled bend road.
Further, the 3rd of the 3rd extenal fixation spatial beams the outer overlook covering of the fan angle less than the 3rd in fixed space wave beam the 3rd
Interior vertical view covering of the fan angle, the 3rd fixed space wave beam include the 3rd in fixed space wave beam and the 3rd extenal fixation spatial beams, the 3rd
Interior fixed space wave beam is become by the sonic transducer array element formation being positioned at side, place, the center of circle, right-angled bend road, the 3rd extenal fixation spatial beams
Become by the sonic transducer array element formation being positioned at the center of circle, right-angled bend road opposite side.
Based on above-mentioned any airdrome scene target acoustical localization method embodiment, further, first sector angle is overlooked less than second
Overlooking sector angle, second overlooks sector angle less than the 3rd vertical view sector angle.
The airdrome scene target acoustical localization method that the present invention provides, the method, by the zones of different at airdrome scene, uses not
Laying sonic transducer node array element battle array with mode, this sonic transducer node array element formation becomes to have the fixed space ripple of spatial selectivity
Bundle, it is possible to pick up the target sound waves in laid region, as far as possible suppression ground sound clutter, far field clutter and noise to greatest extent,
Reduce interference sound source number, be conducive to obtaining preferable Signal to Interference plus Noise Ratio, further according to the information of acoustic wave obtained, scene target is carried out
Location.This airdrome scene target acoustical localization method can pick up information of acoustic wave to greatest extent, suppression effective to noise, rationally
Utilize sonic transducer, quickly effectively scene target to be positioned.
Second aspect, the present invention provides 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, this device include orthoscopic sonic transducer node array element array,
Bending-type sonic transducer node array element array and right-angle type sonic transducer node array element array.Orthoscopic sonic transducer node array element battle array
Row include being laid in symmetrically and evenly the sonic transducer node array element battle array of straight line airfield runway both sides, and sonic transducer node array element formation becomes
There is the first fixed space wave beam of the first vertical view sector angle and first angle of pitch, so that the first fixed space wave beam pickup line straightening machine
The target sound waves of field runway.Bending-type sonic transducer node array element array includes the sonic transducer being laid in contact bend both sides, airport
Node array element battle array, the number laying number less than offside, sonic transducer node array element formation are laid in the side, place, the center of circle of contact bend
Become there is the second fixed space wave beam of the second vertical view sector angle and second angle of pitch, so that the second fixed space wave beam pickup contact
The target sound waves of bend.Right-angle type sonic transducer node array element array includes the sonic transducer being laid in both sides, right-angled bend road, airport
Node array element battle array, the number laying number less than offside, sonic transducer node array element battle array are laid in the side, place, the center of circle in right-angled bend road
Formed and there is the 3rd vertical view sector angle and the 3rd fixed space wave beam of the 3rd angle of pitch, so that the 3rd fixed space wave beam pickup is straight
The target sound waves in turning road, angle.
The airdrome scene target sound sensing device that the present invention provides, this sound sensing device includes orthoscopic sonic transducer node array element battle array
Row, bending-type sonic transducer node array element array and right-angle type sonic transducer node array element array.Not same district according to airdrome scene
Territory, lays sonic transducer node array element battle array.Orthoscopic sonic transducer node array element array is positioned at straight line airfield runway both sides, bending
Formula sonic transducer node array element array is positioned at contact bend both sides, airport, and it is straight that right-angle type sonic transducer node array element array is positioned at airport
Both sides, turning road, angle.The sound sensing device that zones of different is laid can be formed has the different fixed space wave beam overlooking sector angle,
Cover straight line airfield runway, airport contact bend and right-angled bend road, airport, to pick up the target sound waves of three kinds of traffic patterns.With
Time, this fixed space wave beam has the angle of pitch, makes the intersection region of fixed space wave beam fall as far as possible in the concentration zones of target sound waves
Territory, to form the fixed space wave beam with spatial selectivity, it is possible to picking up target sound waves to greatest extent, suppression ground sound is miscellaneous
Ripple, far field clutter and noise, it is thus achieved that preferably Signal to Interference plus Noise Ratio, Appropriate application sonic transducer.
The third aspect, the present invention provides the target acoustical alignment system of a kind of airdrome scene, and it is described as follows:
The present invention provides the target acoustical alignment system of a kind of airdrome scene, and this alignment system includes airdrome scene target sound sensing dress
Put, and processor, processor is for receiving the information of acoustic wave that airdrome scene target sound sensing device receives, and believes according to sound wave
Breath, positions scene target.
The target acoustical alignment system of the airdrome scene that the present invention provides, this alignment system passes through airdrome scene target sound sensing device
Form the fixed space wave beam with spatial selectivity, to gather the target sound waves of airdrome scene zones of different, and can suppress
Interference and noise, then by processor, information of acoustic wave is processed, owing to the information of acoustic wave obtained has preferable Signal to Interference plus Noise Ratio,
Be conducive to scene target is positioned.
Therefore, airdrome scene target acoustical localization method, sound sensing device and the system that the present invention provides, it is possible to greatest extent
Pickup acoustic target signal, suppression effective to noise, Appropriate application sonic transducer.
Accompanying drawing explanation
Fig. 1 is the method flow diagram that airdrome scene target acoustical localization method of the present invention provides；
Fig. 2 be airdrome scene target acoustical localization method of the present invention provide one based on track object acoustics location side, straight line airport
Method flow chart；
Fig. 3 be airdrome scene target acoustical localization method of the present invention provide one based on contact bend target acoustical localization method stream
Cheng Tu；
Fig. 4 is one of airdrome scene target acoustical localization method of the present invention offer and positions based on right-angled bend road, airport target acoustical
Method flow diagram；
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 orthoscopic sonic transducer node array element array schematic diagram；
Fig. 7 is that airdrome scene target sound sensing device of the present invention provides bending-type sonic transducer node array element array schematic diagram；
Fig. 8 is that airdrome scene target sound sensing device of the present invention provides right-angle type sonic transducer node array element array schematic diagram；
Fig. 9 is the sectional view that airdrome scene target sound sensing device of the present invention provides.
Detailed description of the invention
The present invention is further illustrated below by specific embodiment, it should be understood, however, that, these embodiments are only used for
Specifically describe in more detail and be used, and be not to be construed as limiting in any form the present invention.
First aspect, the present embodiment provides a kind of airdrome scene target acoustical localization method, and it is described as follows:
The present embodiment provides a kind of airdrome scene target acoustical localization method, in conjunction with Fig. 1, specifically comprises the following steps that
Step S1, according to the zones of different of airdrome scene, lays sonic transducer node array element battle array, picks up sonic transducer node battle array
Unit's 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, scene target is positioned.
The airdrome scene target acoustical localization method that the present embodiment provides, the method, by the zones of different at airdrome scene, is laid
Different sonic transducer node array element battle arrays, this sonic transducer node array element formation becomes to have the fixed space wave beam of spatial selectivity,
The target sound waves in laid region, as far as possible suppression ground sound clutter, far field clutter and noise, fall can be picked up to greatest extent
Low interference sound source number, is conducive to obtaining preferable Signal to Interference plus Noise Ratio, and further according to the information of acoustic wave obtained, it is fixed to carry out scene target
Position.This airdrome scene target acoustical localization method can pick up information of acoustic wave, suppression effective to noise, rationally profit to greatest extent
With sonic transducer, quickly effectively scene target is positioned.
Being preferably based on the straight line airfield runway of airdrome scene, the present embodiment airdrome scene target acoustical localization method, in conjunction with figure
2, specifically comprise the following steps that
Step S21, the sonic transducer node array element battle array of straight line airfield runway lays in the following way: sonic transducer node array element
Battle array is laid in straight line airfield runway both sides, constitutes orthoscopic sonic transducer node array element array, and sonic transducer node array element formation becomes
First fixed space wave beam, the first fixed space wave beam has the first vertical view sector angle and first angle of pitch, so that the first fixing sky
Between wave beam pickup straight line airfield runway target sound waves；Wherein, in order to the target sound waves of straight line airfield runway is effectively extracted,
And suppress noise or the interference in other direction, first overlooks sector angle less than 180 degree, and multiple first fixed space wave beam energy
Enough cover the face, road of straight line airfield runway.Simultaneously as there is certain height on the electromotor distance ground of aircraft, for suppression ground
The noise with high-altitude of reflection or interference, first angle of pitch is about 5 °～20 ° with the angular range on ground.
Step S22, the information of acoustic wave obtained based on orthoscopic sonic transducer node array element array, scene target is positioned.
Straight line airfield runway feature based on airdrome scene, sonic transducer node array element battle array is symmetrically distributed in straight line airfield runway both sides,
Form the first fixed space waveform with the first vertical view sector angle and first angle of pitch.First fixed space wave beam has first and bows
Depending on sector angle, it is possible to adapt to the linear characteristic of straight line airfield runway, and cover straight line airfield runway.First fixed space wave beam is also
Having the angle of pitch, to pick up the target sound waves of certain altitude above straight line airfield runway as far as possible, the ground sound suppressing the low elevation angle is miscellaneous
Ripple, far-end involve the noise etc. of low flyer.From the angle of airspace filter, the first fixed space wave beam can be to greatest extent
Pickup target sound waves information, suppression noise is or/and disturb, it is thus achieved that preferably Signal to Interference plus Noise Ratio.
Being preferably based on the airport contact bend of airdrome scene, the present embodiment airdrome scene target acoustical localization method, in conjunction with figure
3, specifically comprise the following steps that
Step S31, airport contact bend sonic transducer node array element battle array lay in the following way: sonic transducer node array element
Battle array is laid in contact bend both sides, airport, and the number laying number less than offside is laid in the side, place, the center of circle of contact bend, constitutes
Bending-type sonic transducer node array element array, sonic transducer node array element formation becomes to have the second vertical view sector angle and second angle of pitch
The second fixed space wave beam so that second fixed space wave beam pickup contact bend target sound waves；Electromotor due to aircraft
There is certain height on distance ground, for the noise with high-altitude or the angle on interference, second angle of pitch and ground of suppression ground return
Scope is about 5 °～20 °.
Step S32, the information of acoustic wave obtained based on bending-type sonic transducer node array element array, scene target is positioned.
The bending characteristics of airport based on airdrome scene contact bend, sonic transducer node array element battle array is laid in airport contact bend two
Side, and the laying number of both sides is different, takes into account junction plurality of passages, has the second vertical view sector angle and the second pitching to be formed
The second fixed space wave beam at angle.Second fixed space wave beam has spatial selectivity, it is possible to as far as possible above pickup contact bend
Target sound waves, suppress ground sound clutter and the noise etc. of low flyer at the low elevation angle.
Preferably, the second fixed space wave beam include second in fixed space wave beam and the second extenal fixation spatial beams, second is outer solid
The the second outer covering of the fan angle of overlooking determining spatial beams is less than the second of fixed space wave beam the interior vertical view covering of the fan angle in second, in second
Fixed space wave beam is become by the sonic transducer array element formation being positioned at contact side, place, the bend center of circle, and the second extenal fixation spatial beams is by position
Sonic transducer array element formation in contact bend center of circle opposite side becomes.Wherein, in order to the target sound waves of airport contact bend is carried out
Effectively extracting, and suppress noise or the interference in other direction, the second outer sector angle of overlooking, less than 180 degree, overlooks covering of the fan in second
Angle is more than 180 degree, and multiple second fixed space wave beam can cover the face, road of airport contact bend, or is connected with contact bend
The runway that connects, taxiway etc., be conducive to more fully picking up target sound waves, and suppression noise is or/and interference.
It is preferably based on the right-angled bend road, airport of airdrome scene, the present embodiment airdrome scene target acoustical localization method, in conjunction with
Fig. 4, specifically comprises the following steps that
Step S41, the sonic transducer node array element battle array in right-angled bend road, airport lays in the following way: sonic transducer node battle array
Unit's battle array is laid in both sides, right-angled bend road, airport, and the number laying number less than offside is laid in the side, place, the center of circle in right-angled bend road,
Form right angle formula sonic transducer node array element array, sonic transducer node array element formation becomes the 3rd fixed space wave beam, and the 3rd fixes
Spatial beams has the 3rd vertical view sector angle and the 3rd angle of pitch, and the 3rd fixed space wave beam is for picking up the target in right-angled bend road
Sound wave；Owing to there is certain height on the electromotor distance ground of aircraft, for suppressing the noise with high-altitude or the interference of ground return,
3rd angle of pitch is about 5 °～20 ° with the angular range on ground.
Step S42, the information of acoustic wave obtained based on right-angle type sonic transducer node array element array, scene target is positioned.
The right angle feature in right-angled bend road, airport based on airdrome scene, such as perpendicular type, the turning of tee T, sonic transducer saves
Point array element battle array is laid in both sides, right-angled bend road, airport, and the laying number of both sides is different, has the 3rd vertical view sector angle to be formed
The 3rd fixed space wave beam with the 3rd angle of pitch, it is ensured that the 3rd fixed space wave beam can cover right-angled bend road, airport, and
The intersection region of three fixed space wave beams is consistent with the concentrated area of target sound waves as far as possible, makes the 3rd fixed space wave beam have
Spatial selectivity, picks up target sound waves as far as possible, and suppression noise is or/and disturb.
Preferably, the 3rd of the 3rd extenal fixation spatial beams the outer overlook covering of the fan angle less than the 3rd in fixed space wave beam 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 extenal fixation spatial beams, in the 3rd
Fixed space wave beam by be positioned at side, place, the center of circle, right-angled bend road sonic transducer array element formation become, the 3rd extenal fixation spatial beams by
The sonic transducer array element formation being positioned at the center of circle, right-angled bend road opposite side becomes.Wherein, in order to the target in right-angled bend road, airport is believed
Breath effectively extracts, and suppresses noise or the interference in other direction, and the 3rd outer sector angle of overlooking, less than 180 degree, is bowed in the 3rd
Depending on sector angle more than 180 degree, and multiple 3rd fixed space wave beam can cover the face, road in right-angled bend road, airport, with the company of taking into account
Connect the plurality of passages at place, or be connected with right-angled bend road, airport runway, taxiway etc., be conducive to more fully picking up target
Sound wave.
Based on above-mentioned any airdrome scene target acoustical localization method embodiment, it is preferable that first overlooks sector angle bows less than second
Depending on sector angle, second overlooks sector angle less than the 3rd vertical view sector angle.Straight line airfield runway based on airdrome scene, contact bend
With right-angled bend road, airport, it is respectively provided with right angle characteristic, flexural property and right angle characteristic, for adapting to its characteristic, and guarantees
Target sound waves above enough the most effectively pickup airdrome scene zoness of different, it overlooks the fixed space ripple that covering of the fan angle increases successively
Bundle, it is possible to pickup effective target sound wave to greatest extent.
Second aspect, the present embodiment also provides for a kind of airdrome scene target sound sensing device, is described as follows:
The present embodiment provides a kind of airdrome scene target sound sensing device, and in conjunction with Fig. 5, this positioner includes that orthoscopic sound senses
Device node array element array, bending-type sonic transducer node array element array and right-angle type sonic transducer node array element array.
Orthoscopic sonic transducer node array element array includes the sonic transducer node being laid in straight line airfield runway both sides symmetrically and evenly
Array element battle array, sonic transducer node array element formation becomes to have the first fixed space wave beam of the first vertical view sector angle and first angle of pitch,
First fixed space wave beam is for picking up the target sound waves of straight line airfield runway.In conjunction with Fig. 6, in the both sides of straight line airfield runway,
Symmetrical orthoscopic sonic transducer node array element array, as NEA sonic transducer array element battle array the 61, a 2nd NEA sound passes
Sensor array element battle array the 62, the 3rd NEA sonic transducer array element battle array 63 and the distribution characteristics of the 4th NEA sonic transducer array element battle array 64,
It forms primary nodal point fixed space wave beam 611, secondary nodal point fixed space wave beam the 621, the 3rd node fixed space ripple respectively
Bundle 631 and fourth node fixed space wave beam 641, from depression angle, each fixed space wave beam has the first identical vertical view
Sector angle, its angle is less than 180 °, and can cover straight line airfield runway, to pick up square mesh on straightaway to greatest extent
The acoustic signals of mark aircraft 60.The most each fixed space wave beam has the first identical angle of pitch, and its angular range is 5 °
～20 °.
Bending-type sonic transducer node array element array includes the sonic transducer node array element battle array being laid in contact bend both sides, airport, connection
The number laying number less than offside is laid in the side, place, the center of circle of network bend, and sonic transducer node array element formation becomes to have the second vertical view
Sector angle and the second fixed space wave beam of second angle of pitch, the second fixed space wave beam is for picking up the target sound waves of contact bend.
In conjunction with Fig. 7, in the both sides of contact bend, lay sonic transducer node array element battle array, as a NEA sonic transducer array element battle array 71,
2nd NEA sonic transducer array element battle array the 72, the 3rd NEA sonic transducer array element battle array the 73, the 4th NEA sonic transducer array element battle array
74 and the 5th NEA sonic transducer array element battle array 75, form primary nodal point fixed space wave beam 711, the fixing sky of secondary nodal point respectively
Between wave beam the 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 a NEA sonic transducer array element battle array 71 and the 4th NEA sonic transducer array element battle array 74 lay respectively at contact curved
The side, place, the center of circle in road, such as the 2nd NEA sonic transducer array element battle array the 72, the 3rd NEA sonic transducer array element battle array 77 and the 5th
NEA sonic transducer array element battle array 75 is positioned at the offside of the side, place, the center of circle of contact bend, the second vertical view fan of its fixed space wave beam
Angle, face is more than the first vertical view sector angle of the fixed space waveform of straight line airfield runway, and the second outer sector angle of overlooking is less than 180 degree,
Overlooking sector angle in second and be more than 180 degree, multiple fixed space wave beams can cover the face, road of airport contact bend.The most each
Fixed space wave beam has the second identical angle of pitch, and its angular range is 5 °～20 °.
Right-angle type sonic transducer node array element array includes the sonic transducer node array element battle array being laid in both sides, right-angled bend road, airport,
The number laying number less than offside is laid in the side, place, the center of circle in right-angled bend road, and sonic transducer node array element formation becomes to have the 3rd
Overlooking sector angle and the 3rd fixed space wave beam of the 3rd angle of pitch, the 3rd fixed space wave beam is for picking up the mesh in right-angled bend road
Mark sound wave.In conjunction with Fig. 8, in the both sides in right-angled bend road, airport, lay sonic transducer node array element battle array, such as a NEA sound
Sensor array element battle array the 81, the 2nd NEA sonic transducer array element battle array the 82, the 3rd NEA sonic transducer array element battle array the 83, the 4th NEA
Sonic transducer array element battle array the 84, the 5th NEA sonic transducer array element battle array 85 and the 6th NEA sonic transducer array element battle array 86, it is formed
Primary nodal point fixed space wave beam 811, secondary nodal point fixed space wave beam the 821, the 3rd node fixed space wave beam the 831, the 4th
Node fixed space wave beam the 841, the 5th node fixed space wave beam 851 and the 6th node fixed space wave beam 861, it is overlooked
Covering of the fan angle is all higher than getting in touch with the vertical view sector angle of the second fixed space wave beam of bend, and the 3rd outer sector angle of overlooking is less than 180
Degree, overlooks sector angle in the 3rd more than 180 degree, it is possible to the acoustic signals above pickup right-angled bend road, airport, suppression interference with
Noise.The most each fixed space wave beam has the second identical angle of pitch, and its angular range is 5 °～20 °.In conjunction with Fig. 9,
The fixed space wave beam that this airdrome scene target sound sensing device is formed has the angle of pitch, as at straight line airfield runway, contact bend
Or the both sides in right-angled bend road, airport, it being provided with the first sonic transducer array element battle array 91 and rising tone sensor array element battle array 92, it is respectively
Form primary nodal point fixed space wave beam 911 and secondary nodal point fixed space wave beam 922, the intersection of two wave beams with the angle of pitch
Region falls in the concentrated area of target sound waves as far as possible, it is possible to pick up target sound waves to greatest extent, suppression ground clutter, far-end or
Low latitude noise.
The present embodiment airdrome scene target sound sensing device, this sound sensing device include orthoscopic 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 the zones of different of airdrome scene,
Lay different sound sensing devices.Orthoscopic sonic transducer node array element array is positioned at straight line airfield runway both sides, to adapt to straight line
The linear characteristic of airfield runway.Bending-type sonic transducer node array element battle array is positioned at contact bend both sides, airport, to adapt to airport contact
The flexural property of bend.Right-angle type sonic transducer node array element battle array is positioned at both sides, right-angled bend road, airport, turns adapting to right angle, airport
The right angle characteristic of bend.The sound sensing device that zones of different is laid, it is possible to formed to have and overlook the fixing sky that sector angle increases successively
Between wave beam, cover straight line airfield runway, airport contact bend and right-angled bend road, airport, to pick up above three kinds of traffic patterns
Target sound waves.Meanwhile, there is land clutter district, acoustical signal district and noise range, low latitude above airdrome scene the most successively, such as
Low flyer noise.This fixed space wave beam has the angle of pitch, to make it have spatial selectivity, i.e. and fixed space wave beam
Intersection region falls in the concentrated area of target sound waves as far as possible, and space can be divided into multiple different by fixed space wave beam so
Region, such as ground bounce removal district, acoustical signal concentration zones and noise suppressed district, low latitude, this airdrome scene target sound sensing device can
The target sound waves of pick-up of acoustic signals enhancement region to greatest extent, suppression ground sound clutter, far-end surface noise and low latitude noise, obtain
Obtain preferable Signal to Interference plus Noise Ratio, Appropriate application sonic transducer.
The third aspect, the present embodiment also provides for the target acoustical alignment system of a kind of airdrome scene, is described as follows:
The present embodiment provides the target acoustical alignment system of a kind of airdrome scene, and this alignment system includes that airdrome scene target sound senses
Device, and processor, processor is used for receiving the information of acoustic wave that airdrome scene target sound sensing device receives, and according to sound wave
Information, positions scene target.
The target acoustical alignment system of the airdrome scene that the present embodiment provides, this alignment system is by airdrome scene target sound sensing dress
Putting and form the fixed space wave beam with spatial selectivity, fixed space wave beam has certain vertical view sector angle and the angle of pitch, makes
This airdrome scene target sound sensing device can obtain target sound waves information to greatest extent, suppression ground clutter, far-end noise and low
Empty noise, it is thus achieved that preferably Signal to Interference plus Noise Ratio.The information of acoustic wave that processor receives according to airdrome scene target sound sensing device, to field
Area Objects positions, owing to airdrome scene target sound sensing device is obtained in that the information of acoustic wave of preferable Signal to Interference plus Noise Ratio, it is possible to subtract
Few location Calculation complexity, is conducive to positioning scene target.
Although present invention has been a certain degree of description, it will be apparent that, without departing from the spirit and scope of the present invention,
The suitable change of each condition can be carried out.It is appreciated that and the invention is not restricted to embodiment, and be attributed to the scope of claim,
It includes the equivalent of each factor.
Claims (9)
1. an airdrome scene target acoustical localization method, it is characterised in that comprise the steps:
Step S1, according to the zones of different of airdrome scene, lays sonic transducer node array element battle array, picks up described sonic transducer node
Array element battle array lays the target sound waves in region；
Step S2, the information of acoustic wave obtained based on described sonic transducer node array element battle array, scene target is positioned.
Airdrome scene target acoustical localization method the most according to claim 1, it is characterised in that
In step sl, the sonic transducer node array element battle array of straight line airfield runway is laid in the following way:
Described sonic transducer node array element battle array is laid in described straight line airfield runway both sides, constitutes orthoscopic sonic transducer node array element
Array, described sonic transducer node array element formation becomes the first fixed space wave beam, described first fixed space wave beam to have
One overlooks sector angle and first angle of pitch, so that described first fixed space wave beam picks up the target of described straight line airfield runway
Sound wave.
Airdrome scene target acoustical localization method the most according to claim 1 and 2, it is characterised in that
In step sl, the sonic transducer node array element battle array of airport contact bend is laid in the following way:
Described sonic transducer node array element battle array is laid in contact bend both sides, described airport, and the side, place, the center of circle of described contact bend
Lay the number laying number less than offside, constitute bending-type sonic transducer node array element array, described sonic transducer node
Array element formation becomes the second fixed space wave beam, described second fixed space wave beam to have the second vertical view sector angle and the second pitching
Angle, so that described second fixed space wave beam picks up the target sound waves of described contact bend.
Airdrome scene target acoustical localization method the most according to claim 3, it is characterised in that
Described second fixed space wave beam include described second in fixed space wave beam and described second extenal fixation spatial beams,
The outer covering of the fan angle of overlooking of the second of second extenal fixation spatial beams is less than the second of fixed space wave beam the interior vertical view covering of the fan in second
Angle,
In described second, fixed space wave beam is become by the sonic transducer array element formation being positioned at side, place, the described contact bend center of circle,
Described second extenal fixation spatial beams is become by the sonic transducer array element formation being positioned at described contact bend center of circle opposite side.
5. according to the airdrome scene target acoustical localization method described in claims 1 to 3 any one, it is characterised in that
In step sl, the sonic transducer node array element battle array in airport right-angled bend road is laid in the following way:
Described sonic transducer node array element battle array is laid in both sides, right-angled bend road, described airport, and the center of circle institute in described right-angled bend road
The number laying number less than offside, form right angle formula sonic transducer node array element array, described sonic transducer is laid in side
Node array element formation becomes the 3rd fixed space wave beam, described 3rd fixed space wave beam to have the 3rd vertical view sector angle and the 3rd
The angle of pitch, so that described 3rd fixed space wave beam picks up the target sound waves in described right-angled bend road.
Airdrome scene target acoustical localization method the most according to claim 5, it is characterised in that
The outer covering of the fan angle of overlooking of the 3rd of 3rd extenal fixation spatial beams is less than the 3rd of fixed space wave beam the interior vertical view covering of the fan in the 3rd
Angle,
Described 3rd fixed space wave beam include the described 3rd in fixed space wave beam and described 3rd extenal fixation spatial beams,
In described 3rd, fixed space wave beam is become by the sonic transducer array element formation being positioned at side, place, the center of circle, described right-angled bend road,
Described 3rd extenal fixation spatial beams is become by the sonic transducer array element formation being positioned at the center of circle, described right-angled bend road opposite side.
Airdrome scene target acoustical localization method the most according to claim 5, it is characterised in that
Described first overlooks sector angle overlooks sector angle less than described second,
Described second overlooks sector angle overlooks sector angle less than the described 3rd.
8. an airdrome scene target sound sensing device, it is characterised in that including:
Orthoscopic sonic transducer node array element array, including the sonic transducer node being laid in straight line airfield runway both sides symmetrically
Array element battle array, described sonic transducer node array element formation becomes to have the first fixing sky of the first vertical view sector angle and first angle of pitch
Between wave beam so that described first fixed space wave beam pick up described straight line airfield runway target sound waves,
Bending-type sonic transducer node array element array, including be laid in airport contact bend both sides sonic transducer node array element battle array,
The number laying number less than offside is laid in the side, place, the center of circle of described contact bend, and described sonic transducer node array element is formed
There is the second fixed space wave beam of the second vertical view sector angle and second angle of pitch, so that described second fixed space wave beam picks up
Take the target sound waves of described contact bend,
Right-angle type sonic transducer node array element array, including being laid in the sonic transducer node array element battle array of both sides, right-angled bend road, airport,
The number laying number less than offside is laid in the side, place, the center of circle in described right-angled bend road, is formed and has the 3rd vertical view sector angle
With the 3rd fixed space wave beam of the 3rd angle of pitch so that described 3rd fixed space wave beam picks up described right-angled bend road
Target sound waves.
9. the target acoustical alignment system of an airdrome scene, it is characterised in that including:
Airdrome scene target sound sensing device as claimed in claim 8；And,
Processor, for receiving the information of acoustic wave that described airdrome scene target sound sensing device receives, and according to described information of acoustic wave,
Scene target is positioned.
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| CN106019229B (en) | 2018-03-16 |
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