CN109839627A - Sonar contact is apart from magnitude the measurement and calibration system and method under the conditions of a kind of pond - Google Patents
Sonar contact is apart from magnitude the measurement and calibration system and method under the conditions of a kind of pond Download PDFInfo
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- CN109839627A CN109839627A CN201910176341.7A CN201910176341A CN109839627A CN 109839627 A CN109839627 A CN 109839627A CN 201910176341 A CN201910176341 A CN 201910176341A CN 109839627 A CN109839627 A CN 109839627A
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Abstract
The present invention relates to underwater sound measurement and calibration fields, and in particular to sonar contact is apart from magnitude the measurement and calibration system and method under the conditions of a kind of pond.The measurement and calibration system is made of pond, target simulation sonar, mast-up, standard hydrophone, measuring amplifier, filter, collector, recording controller and measurement and calibration monitoring platform.Standard hydrophone, measuring amplifier, filter, collector and measurement and calibration monitoring platform, which are sequentially connected, constitutes measurement and calibration subsystem, the calibration arbitrarily downgraded for target simulation sonar radiation sound；Measurement and calibration monitoring platform issues control instruction to target simulation sonar through recording controller, control its target simulation acoustical signal for emitting specified intensity, recording controller receives the distance measurement result of sonar output to be measured simultaneously, and it is uploaded to measurement and calibration monitoring platform, finally by the output measurement and calibration report of measurement and calibration monitoring platform.Invention solves the measurement and calibration problems of the big detection range magnitude of sonar under the conditions of pond.
Description
Technical field
The present invention relates to underwater sound measurement and calibration fields, and in particular to sonar contact is measured apart from magnitude under the conditions of a kind of pond
Calibration system and method.
Background technique
The development of underwater sound measurement and calibration technology and underwater acoustic technology is closely related, the accuracy of underwater sound magnitude measurement and calibration and system
Not only it is related to the evaluation of underwater sound equipment technology performance and quality whether one, but also is related to the accuracy of underwater sound scientific research
And Development Level.As the important technology index of detection sonar, the measurement and calibration work apart from magnitude is always that the underwater sound measures school
The hot issue of quasi- field concern, but since indoor pond limited dimension, field testing environmental uncertainty influence the factors such as big,
It is suggested for a long time without more effective measurement calibration method, it is standby more to lack special measuring calibration cartridge.It is opened under condition of external field
When exhibition is measured apart from magnitude with calibrating, ambient noise and platform stabilization, other unknown errors factors influence it is serious, although can be
The measurement of different distance magnitude is realized in site environment, but test accuracy, ease for operation etc. are poor；Pond condition indoors
Under, measurement and calibration operation is convenient, test environment it is controllable/can survey, can avoid outfield (scene) other error sources and influence, but usually spy
Sonar contact is surveyed apart from magnitude usually in several hundred rice to several kilometers or even tens kilometers, the scale of the maximum hundred meters of magnitudes in pond is difficult
To meet the requirement apart from magnitude measurement and calibration.
The present invention propose under the conditions of a kind of pond based on target simulation sonar contact apart from magnitude the measurement and calibration system and
Method, error source is controllable when making full use of indoor pond measurement and calibration, can survey, and test platform is stablized, and measurement result is accurate, test
The superiority such as convenient are operated, the measurement and calibration system for realizing sonar apart from magnitude is designed in target simulation method, propose metering school
Quasi- method specifically addresses the big measurement and calibration problem apart from magnitude beyond indoor pond scale.
Summary of the invention
The purpose of the present invention is to solve sonar big detection range magnitude metering school is difficult to realize under the conditions of indoor pond
Quasi- problem, sonar contact is visited apart from magnitude the measurement and calibration system and method for sonar gamut under the conditions of providing a kind of pond
Ranging provides equipment and technological approaches from magnitude measurement and calibration.
The object of the present invention is achieved like this:
For sonar contact apart from magnitude the measurement and calibration system, which includes: pond 1, target simulation under the conditions of a kind of pond
Sonar 2, mast-up 3, standard hydrophone 4, measuring amplifier 5, filter 6, collector 7, recording controller 8 and measurement and calibration
Monitoring platform 9, standard hydrophone 4 are installed on mast-up 3 and connect with measuring amplifier 5, the output and filter of measuring amplifier 5
The input of wave device 6 connects, and the output of filter 6 is connect with collector 7, and collector 7 saves data and is sent to measurement and calibration observing and controlling
Platform 9；Recording controller 8 is connected with sonar to be measured, measurement and calibration monitoring platform 9 and target simulation sonar 2 respectively；Measure school
Quasi- monitoring platform 9 sends control instruction to target simulation sonar 2 by recording controller 8, controls it and radiates specified sound pressure level
Target simulation acoustical signal；Recording controller 8 receives the detection range magnitude information of sonar output to be measured, and is uploaded to measurement and calibration
Monitoring platform 9, final measurement and calibration monitoring platform 9 export measurement and calibration report.
Successively connected by standard hydrophone 4, measuring amplifier 5, filter 6, collector 7 and measurement and calibration monitoring platform 9
The measurement and calibration subsystem for connecing composition is used to determine the grading rower of target simulation sonar sound radiation pressure, is ensuring standard hydrophone 4
Distance R is identical and entire between distance and sonar to be measured and 2 acoustic centre of source of target simulation sonar between 2 acoustic centre of source of target simulation sonar
In the case where remaining unchanged always during measurement and calibration, acoustical signal propagation distance R is radiated to target simulation sonar 2 according to following formula
Sound pressure level afterwards is demarcated:
SPLR=20loge0-Ms-Ga
Wherein, e0It is effective that the signal voltage that signal is handled is acquired to collector 7 for measurement and calibration monitoring platform 9
Value；MsFor the sensitivity of standard hydrophone 4；GaFor the signal gain amplifier value of measuring amplifier 5.
Sonar contact is apart from magnitude measurement calibration method under the conditions of a kind of pond, method includes the following steps:
Step 1: connection equipment, laying target simulation sonar away from standard hydrophone and sonar distance to be measured is R, and whole
It is remained unchanged in a measurement and calibration；
Step 2: utilizing vector hydrophone calibration and different distance RiCorresponding target simulation acoustic marker sound pressure level SPLi, i
=0,1,2, N；
Step 3: measurement and calibration monitoring platform 9 sends control instruction, control to target simulation sonar 2 by recording controller 8
Making it and radiating specified sound pressure level is SPLiAcoustic signals；
Step 4: sonar to be measured is by corresponding detection range magnitude Ri' through recording controller 8 it is uploaded to measurement and calibration observing and controlling
Platform 9；
Step 5: measurement and calibration monitoring platform is by sonar contact apart from magnitude Ri' and specified measurement and calibration apart from magnitude
RiOutput completes sonar one measurement and calibration apart from magnitude to measurement and calibration test report.
The step 1 includes: standard hydrophone 4 and sonar to be measured is mounted on mast-up 3, and in measurement and calibration process
Distance and sonar to be measured and 2 acoustic centre of source of target simulation sonar between 2 acoustic centre of source of middle fixed standard hydrophone 4 and target simulation sonar
Between distance it is constant, remain R.
The step 2 includes: that measurement and calibration monitoring platform 9 is controlled by recording controller 8 to the transmission of target simulation sonar 2
Instruction controls it with a fixed step size by the strong acoustical signal to weak successively radiation varying strength, measurement and calibration subsystem is utilized to demarcate
Corresponding sound pressure level SPL outi(i=0,1,2, N), to have corresponding detection range magnitude RiMeasurement and calibration ability, setting
Sound pressure level as i=0 is maximum sound pressure level, and as a reference point, is existed between proportional spacing magnitude and corresponding sound pressure level as follows
Relationship:
Wherein, SPL0For the maximum sound pressure level that target simulation sonar 2 measures at distance R, SPLiFor target simulation sonar 2
In distance RiLocate corresponding sound pressure level.
The beneficial effects of the present invention are:
The present invention propose under the conditions of a kind of pond based on target simulation sonar contact apart from magnitude the measurement and calibration system and
Method, error source is controllable when making full use of indoor pond measurement and calibration, can survey, and test platform is stablized, and measurement result is accurate, test
The superiority such as convenient are operated, the measurement and calibration system for realizing sonar apart from magnitude is designed in target simulation method, propose metering school
Quasi- method specifically addresses the big measurement and calibration problem apart from magnitude beyond indoor pond scale.
Detailed description of the invention
Fig. 1 is sonar contact apart from magnitude the measurement and calibration system composition and connection schematic diagram.
Fig. 2 is measurement and calibration flow chart.
Specific embodiment
The present invention is further described with reference to the accompanying drawing.
As shown in Figure 1, the sonar contact based on echo signal simulation under the conditions of pond is apart from magnitude the measurement and calibration system packet
Include pond 1, target simulation sonar 2, mast-up 3, standard hydrophone 4, measuring amplifier 5, filter 6, collector 7, data control
Device 8 and measurement and calibration monitoring platform 9 processed.
Standard hydrophone 4 is installed on mast-up 3 and connect with measuring amplifier 5, the output and filtering of measuring amplifier 5
The input of device 6 connects, and the output of filter 6 is connect with collector 7, and it is flat that the preservation of collector 7 data are sent to measurement and calibration observing and controlling
Platform 9.
Recording controller 8 is connected with sonar to be measured, measurement and calibration monitoring platform 9 and target simulation sonar 2 respectively.
Measurement and calibration monitoring platform 9 sends control instruction to target simulation sonar 2 by recording controller 8, controls its spoke
Penetrate the target simulation acoustical signal of specified sound pressure level；Meanwhile recording controller 8 can receive the detection range magnitude of sonar output to be measured
Information, and it is uploaded to measurement and calibration monitoring platform 9, final measurement and calibration monitoring platform 9 exports measurement and calibration report.Measurement and calibration
Monitoring platform 9 is shown in that cable, which can be used, to be connect with recording controller 8, can also be used Serial Port Line connection, realize control instruction with it is upper
Pass the transmission of data.
Sonar contact based on echo signal simulation under the conditions of the pond apart from magnitude the measurement and calibration system and method,
It is sequentially connected by standard hydrophone 4, measuring amplifier 5, filter 6, collector 7 and measurement and calibration monitoring platform 9 and to be constituted
It is fixed to the grading rower of target simulation sonar sound radiation pressure that measurement and calibration subsystem is used for, and is ensuring standard hydrophone 4 and target mould
Distance R is identical and in entire measurement and calibration between distance and sonar to be measured and 2 acoustic centre of source of target simulation sonar between 2 acoustic centre of source of onomatopoeia
In the case where remaining unchanged always in the process, the acoustic pressure after acoustical signal propagation distance R is radiated to target simulation sonar 2 according to following formula
Grading rower is fixed:
SPLR=20loge0-Ms-Ga
Wherein, e0It is effective that the signal voltage that signal is handled is acquired to collector 7 for measurement and calibration monitoring platform 9
Value；MsFor the sensitivity of standard hydrophone 4；GaFor the signal gain amplifier value of measuring amplifier 5.
Sonar contact based on echo signal simulation under the conditions of the pond measures school apart from magnitude the measurement and calibration system
Quasi- step are as follows:
Step 1: each functional module of system has been linked in sequence, standard hydrophone 4 and sonar to be measured are mounted on mast-up 3
On, and during measurement and calibration between 2 acoustic centre of source of fixed standard hydrophone 4 and target simulation sonar distance and sonar to be measured with
Distance is constant between 2 acoustic centre of source of target simulation sonar, remains R；
Step 2: measurement and calibration monitoring platform 9 sends control instruction, control to target simulation sonar 2 by recording controller 8
It is made with a fixed step size by the strong acoustical signal to weak successively radiation varying strength, utilizes metering according to 2 the method for claim
Calibration subsystem calibrates corresponding sound pressure level SPLi(i=0,1,2, N), to have corresponding detection range magnitude RiMeter
Rated capacity is measured, set the sound pressure level as i=0 as maximum sound pressure level, and as a reference point, proportional spacing magnitude and at the sound
There are following relationships between arbitrarily downgrading:
Wherein, SPL0For the maximum sound pressure level that target simulation acoustic marker (2) measures at distance R, SPLiFor target simulation sound
Beacon (2) is in distance RiLocate corresponding sound pressure level.
Step 3: measurement and calibration monitoring platform 9 sends control instruction, control to target simulation sonar 2 by recording controller 8
Making it and radiating specified sound pressure level is SPLiAcoustic signals；
Step 4: sonar to be measured is by corresponding detection range magnitude Ri' through recording controller 8 it is uploaded to measurement and calibration observing and controlling
Platform 9；
Step 5: measurement and calibration monitoring platform is by sonar contact apart from magnitude Ri' and specified measurement and calibration apart from magnitude
RiOutput completes sonar one measurement and calibration apart from magnitude to measurement and calibration test report.
It repeats step (3) to step (5), realizes each measurement and calibration interested apart from magnitude.It is given in a manner of flow chart
Entire measurement and calibration process is shown in Fig. 2 out.
Claims (5)
1. sonar contact is apart from magnitude the measurement and calibration system under the conditions of a kind of pond, which is characterized in that the system includes: pond
(1), target simulation sonar (2), mast-up (3), standard hydrophone (4), measuring amplifier (5), filter (6), collector
(7), recording controller (8) and measurement and calibration monitoring platform (9), standard hydrophone (4) be installed on mast-up (3) and with survey
Measure amplifier (5) connection, the output of measuring amplifier (5) connect with the input of filter (6), the output of filter (6) with adopt
Storage (7) connection, collector (7) save data and are sent to measurement and calibration monitoring platform (9)；Recording controller (8) respectively with to
Sonar, measurement and calibration monitoring platform (9) and target simulation sonar (2) is surveyed to be connected；Measurement and calibration monitoring platform (9) passes through data
Controller (8) sends control instruction to target simulation sonar (2), controls its target simulation acoustical signal for radiating specified sound pressure level；
Recording controller (8) receives the detection range magnitude information of sonar output to be measured, and is uploaded to measurement and calibration monitoring platform (9),
Final measurement and calibration monitoring platform (9) output measurement and calibration report.
2. sonar contact exists apart from magnitude the measurement and calibration system, feature under the conditions of a kind of pond according to claim 1
In, by standard hydrophone (4), measuring amplifier (5), filter (6), collector (7) and measurement and calibration monitoring platform (9) according to
It is fixed to the grading rower of target simulation sonar sound radiation pressure that the secondary measurement and calibration subsystem connected and composed is used for, and is ensuring that standard water listens
Distance R phase between distance and sonar to be measured and target simulation sonar (2) acoustic centre of source between device (4) and target simulation sonar (2) acoustic centre of source
Together and in the case where remaining unchanged always during entire measurement and calibration, according to following formula to target simulation sonar (2) radiation sound
Sound pressure level after signal propagation distance R is demarcated:
SPLR=20loge0-Ms-Ga
Wherein, e0It is effective that the signal voltage that signal is handled is acquired to collector (7) for measurement and calibration monitoring platform (9)
Value；MsFor the sensitivity of standard hydrophone (4)；GaFor the signal gain amplifier value of measuring amplifier (5).
3. sonar contact is apart from magnitude measurement calibration method under the conditions of a kind of pond, which is characterized in that this method includes following step
It is rapid:
Step 1: connection equipment, laying target simulation sonar away from standard hydrophone and sonar distance to be measured is R, and is entirely being counted
It is remained unchanged in amount calibration；
Step 2: utilizing vector hydrophone calibration and different distance RiCorresponding target simulation acoustic marker sound pressure level SPLi, i=0,
1,2,···N；
Step 3: measurement and calibration monitoring platform (9) sends control instruction to target simulation sonar (2) by recording controller (8),
Controlling it and radiating specified sound pressure level is SPLiAcoustic signals；
Step 4: sonar to be measured is by corresponding detection range magnitude Ri' through recording controller (8) it is uploaded to measurement and calibration monitoring platform
(9)；
Step 5: measurement and calibration monitoring platform is by sonar contact apart from magnitude Ri' and specified measurement and calibration apart from magnitude RiIt is defeated
Out to measurement and calibration test report, sonar one measurement and calibration apart from magnitude is completed.
4. sonar contact exists apart from magnitude measurement calibration method, feature under the conditions of a kind of pond according to claim 3
In, the step 1 include: that standard hydrophone (4) and sonar to be measured are mounted on mast-up (3), and in measurement and calibration process
Distance and sonar to be measured and target simulation sonar (2) between middle fixed standard hydrophone (4) and target simulation sonar (2) acoustic centre of source
Distance is constant between the acoustic centre of source, remains R.
5. sonar contact exists apart from magnitude measurement calibration method, feature under the conditions of a kind of pond according to claim 3
In the step 2 includes: that measurement and calibration monitoring platform (9) are controlled by recording controller (8) to target simulation sonar (2) transmission
System instruction controls it with a fixed step size by the strong acoustical signal to weak successively radiation varying strength, utilizes measurement and calibration subsystem mark
Make corresponding sound pressure level SPLi(i=0,1,2, N), to have corresponding detection range magnitude RiMeasurement and calibration ability, if
Sound pressure level when settled i=0 is maximum sound pressure level, and as a reference point, the relationship between proportional spacing magnitude and corresponding sound pressure level
It is expressed as following formula:
Wherein, SPL0For the maximum sound pressure level that target simulation sonar (2) measures at distance R, SPLiFor target simulation sonar (2)
In distance RiLocate corresponding sound pressure level.
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Cited By (3)
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| CN112083402A (en) * | 2020-09-15 | 2020-12-15 | 哈尔滨工程大学 | Underwater target sailing detection experimental method under pool condition |
| CN113450846A (en) * | 2020-03-27 | 2021-09-28 | 上海汽车集团股份有限公司 | Sound pressure level calibration method and device |
| CN114509767A (en) * | 2022-02-15 | 2022-05-17 | 交通运输部天津水运工程科学研究所 | Underwater imaging sonar measurement calibration device and method |
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| CN113450846A (en) * | 2020-03-27 | 2021-09-28 | 上海汽车集团股份有限公司 | Sound pressure level calibration method and device |
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| CN114509767A (en) * | 2022-02-15 | 2022-05-17 | 交通运输部天津水运工程科学研究所 | Underwater imaging sonar measurement calibration device and method |
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| CN109839627B (en) | 2022-12-13 |
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