CN106680820A - Novel parabolic antenna, acoustic radar system for detecting water vapor transfer channel and rainfall predicting method - Google Patents
Novel parabolic antenna, acoustic radar system for detecting water vapor transfer channel and rainfall predicting method Download PDFInfo
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- CN106680820A CN106680820A CN201710045214.4A CN201710045214A CN106680820A CN 106680820 A CN106680820 A CN 106680820A CN 201710045214 A CN201710045214 A CN 201710045214A CN 106680820 A CN106680820 A CN 106680820A
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- parabola
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- SDIXRDNYIMOKSG-UHFFFAOYSA-L disodium methyl arsenate Chemical compound [Na+].[Na+].C[As]([O-])([O-])=O SDIXRDNYIMOKSG-UHFFFAOYSA-L 0.000 claims description 18
- 230000003321 amplification Effects 0.000 claims description 9
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 9
- 238000001556 precipitation Methods 0.000 claims description 5
- 238000004458 analytical method Methods 0.000 claims description 4
- 238000002592 echocardiography Methods 0.000 claims description 4
- 239000000284 extract Substances 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 2
- 238000001514 detection method Methods 0.000 description 19
- 238000010586 diagram Methods 0.000 description 7
- 238000007781 pre-processing Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
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- 239000007788 liquid Substances 0.000 description 2
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- 235000008434 ginseng Nutrition 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
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- 239000007787 solid Substances 0.000 description 1
- 230000002463 transducing effect Effects 0.000 description 1
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Classifications
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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
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/95—Radar or analogous systems specially adapted for specific applications for meteorological use
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/41—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00 using analysis of echo signal for target characterisation; Target signature; Target cross-section
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/10—Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
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- Electromagnetism (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention provides a novel parabolic antenna, an acoustic radar system for detecting a water vapor transfer channel and a rainfall predicting method. The parabolic antenna comprises a parabolic reflector, a support, a receiving transducer, an acoustic loudspeaker and an acoustic tube, the receiving transducer, the acoustic loudspeaker and the acoustic tube are sequentially installed in the axis direction of the front face of the parabolic reflector, the end of the support is connected to the parabolic reflector, the receiving transducer is arranged facing the parabolic reflector, and the acoustic loudspeaker is arranged back on to the parabolic reflector. Acoustic waves are directly emitted after being amplified and guided through the acoustic tube instead of using an antenna for emitting the acoustic waves, the use efficiency of the acoustic waves and the detectivity of an acoustic radar can be effectively promoted, weak echo signals of the water vapor transfer channel can be detected, and accurate sampling data can be provided for predicting 24-h rainfall. The accuracy of predicting 24-h rainfall can be substantially improved by detecting the state of the water vapor transfer channel.
Description
Technical field
The present invention relates to a kind of sodar system and prediction rainfall of new parabola antenna with detection vapour transfer channel
The method of amount.
Background technology
Acoustic radar is to utilize Principles of Radar, launches sound wave and receives the backward scattered echo of this sound wave, strong to measure echo
The equipment of degree and object distance.The frequency range of acoustic radar transmitting-receiving sound wave can cover infrasonic wave, sound wave, ultrasound wave.Using
It is mainly used in atmospheric wind monitoring and wind power resources assessment in the acoustic radar of meteorological field.
Antenna directly affects the detection accuracy and distance of acoustic radar as the important component part of acoustic radar.Traditional sound
Radar adopts the antenna of transmit-receive sharing, acoustic horn to arrange in the same direction with receive transducer, and advantage can be reduces cost, be used for
Atmospheric sounding wind field, but there is detectivity relative deficiency, it is impossible to realize the faint echo to vapour transfer channel in air
The detection of signal.
Additionally, at present the accuracy rate of 24 hours heavy showers amounts prediction in the whole world is relatively low, only 23% or so, prediction with
There is larger difference in practical situation, it is impossible to meet the demand for requiring heavy showers amount strict occasion.
The problems referred to above are the problems that should be paid attention to during prediction of precipitation and solve.
The content of the invention
It is an object of the invention to provide a kind of new parabola antenna with detection vapour transfer channel sodar system and
The method of prediction rainfall solves to there is detectivity relative deficiency present in prior art, it is impossible in realizing atmospheric sounding
The problem of the faint echo signals of vapour transfer channel.
The present invention technical solution be：
A kind of parabola antenna, including parabola, support, receive transducer, acoustic horn and cylinder record, parabolic reflector
Receive transducer, acoustic horn, cylinder record are sequentially arranged with the positive axis direction of device, the end of support is connected to parabolic reflector
On device, receive transducer, acoustic horn are respectively arranged on the middle part of support, and receive transducer, acoustic horn direction is reversed,
I.e. receive transducer is arranged towards parabola and acoustic horn is arranged back to parabola, and cylinder record is connected by connecting rod
It is connected on support, and the end connection acoustic horn of cylinder record.
Further, support adopts hollow-core construction, support to be provided with hollow channel, hollow channel through transmitting cable and connect
Take-up cable.
Further, cylinder record adopts cylindrical, spherical, elliposoidal, oblate spheroid, multi-edge column-shaped or tubaeform.
Further, cylinder record includes cylinder, and cylinder is made of metal, and is provided with inlet sound mouth, outlet sound mouth and hollow sound channel, hollow
The two ends of sound channel are respectively communicated with inlet sound mouth, outlet sound mouth.
Further, the bore of parabola is 0.001 meter to 100 meters, and the operating frequency of receive transducer is
0.0001Hz to 1GHz.
One kind detection sodar system, including parabola antenna, turntable and control terminal, parabola antenna is using above-mentioned
Parabola antenna, parabola antenna is rotatably connected on turntable, parabola antenna and control terminal respectively by transmitting cable and
Receiving cable connects, and control terminal also connects turntable by angular adjustment cable.
Further, control terminal includes power amplifier module, echo preprocessing module, data transmitting/acquisition module, ginseng
Number setup module, signal processing module and data processing module.
Further, the acoustic emission scope of data transmitting/acquisition module is 0.0001Hz to 1GHz.
A kind of method for predicting rainfall using above-mentioned detection sodar system, comprises the following steps,
Parameter setting module arranges transmitting, reception, the relevant parameter of turntable, and control turntable drives parabola to point to target
Region, and control data transmitting/acquisition module generates acoustic signals, Jing power amplifier modules realize the amplification of acoustical signal, promote
Acoustic horn, Jing cylinder records are oriented to and amplify, and irradiate target area；
The sound wave echoes that parabola is converged are converted into the signal of telecommunication by target area echo using receive transducer, and Jing is returned
Ripple pretreatment module realizes the amplification and filtering of echo signal, and completes data sampling and data by data transmitting/acquisition module
Storage；
Signal processing module is processed the digital signal after sampling, extracts the status information of vapour transfer channel；
Data processing module is calculated for the vapour transfer channel status information that sector scanning is obtained using algorithm with regress analysis method, is obtained
To local prediction of precipitation data.
The invention has the beneficial effects as follows：This kind of parabola antenna and detection sodar system, can realize not sent out by antenna
Sound wave is penetrated, and directly launches sound wave after being amplified and be oriented to by using cylinder record, can effectively lift the utilization ratio of sound wave
And the detectivity of acoustic radar, can be with the faint echo signals of vapour transfer channel in atmospheric sounding.The acoustic radar of the present invention was both
Can apply in atmospheric environment, it is also possible to apply in water, during other solid-states, liquid, gaseous environment can also be applied to.This
Invention detection range is long, can realize the accurate detection of the faint echo signals of vapour transfer channel in air, can be little for 24
When rainfall prediction accurate sampled data is provided.Pass through to detect vapor transfer using the method for the prediction rainfall of the present invention
The state of passage, can significantly lift the accuracy rate of the prediction of heavy showers in 24 hours.
Description of the drawings
Fig. 1 is the structural representation of embodiment of the present invention parabola antenna.
Fig. 2 is the explanation block diagram that the embodiment of the present invention detects sodar system.
Fig. 3 is the schematic diagram of cylindrical cylinder record in embodiment.
Fig. 4 is the schematic diagram of spherical cylinder record in embodiment.
Fig. 5 is the schematic diagram of elliposoidal cylinder record in embodiment.
Fig. 6 is the schematic diagram of oblate spheroid cylinder record in embodiment.
Fig. 7 is the schematic diagram of many prismatic cylinder records in embodiment.
Fig. 8 is the schematic diagram of tubaeform cylinder record in embodiment.
Fig. 9 is the schematic flow sheet of the method for embodiment prediction rainfall.
Wherein：1- parabola antennas, 2- turntables, 3- control terminals.
11- parabolas, 12- supports, 13- receive transducers, 14- acoustic horns, 15- cylinder records, 16- connecting rods, 17-
Connecting rod.
Specific embodiment
Describe the preferred embodiments of the present invention in detail below in conjunction with the accompanying drawings.
Embodiment
A kind of parabola antenna, including parabola 11, support 12, receive transducer 13, the harmony of acoustic horn 14
Cylinder 15, is sequentially arranged with receive transducer 13, acoustic horn 14, cylinder record 15 on the positive axis direction of parabola 11,
The end of frame 12 is connected on parabola 11, and receive transducer 13, acoustic horn 14 are respectively arranged on the middle part of support 12,
And receive transducer 13, acoustic horn 14 are towards being reversed, i.e., receive transducer 13 arrange towards parabola 11 and
Acoustic horn 14 is arranged back to parabola 11, and cylinder record 15 is connected on support 12 by connecting rod, and the end of cylinder record 15
Connection acoustic horn 14.
This kind of parabola antenna, can use in detection acoustic radar, can realize directly not launching sound wave by antenna, and
Backward launched sound wave is amplified and led by using cylinder record 15, can effectively lift the utilization ratio of sound wave and the spy of acoustic radar
Survey ability, can be with the faint echo signals of vapour transfer channel in atmospheric sounding.The acoustic radar of the present invention both can be applied big
In compression ring border, it is also possible to apply in water.
Acoustic horn 14 and receive transducer 13 are arranged on parabola antenna 1, acoustic horn 14 outwardly, by cylinder record 15
Transmitting sound wave.Receive transducer 13 is placed in the focus of antenna, towards antenna surface.This kind of parabola antenna, with existing structure
Compare, acoustic horn 14 is dorsad arranged with receive transducer 13 such that it is able to realize continuously setting for acoustic horn 14 and cylinder record 15
Put, make acoustic horn 14 form resonator with cylinder record 15, so as to realize amplifying the purpose of signal.
Cylinder record 15 includes cylinder, and cylinder is provided with inlet sound mouth, outlet sound mouth and hollow sound channel, and the two ends of hollow sound channel are respectively communicated with
Inlet sound mouth, outlet sound mouth.Further amplification to transmission signal is realized by the cylinder record 15 for arranging.Cylinder record 15 adopts metal material system
Into, and according to the difference of the environmental condition for using, such as Fig. 3, Fig. 4, Fig. 5, figure matched using polytype cylinder record 15
6th, Fig. 7 and Fig. 8, cylinder record 15 adopts cylindrical, spherical, elliposoidal, oblate spheroid, multi-edge column-shaped or tubaeform.The middle part of cylinder record 15
The end of support 12 is connected to by connecting rod 17.Support 12 adopts hollow-core construction, and support 12 is provided with hollow channel, in hollow channel
Through transmitting cable and receiving cable.Succinct wiring can be realized.
One kind detection sodar system, including parabola antenna 1, turntable 2 and control terminal 3, parabola antenna 1 is using upper
The parabola antenna 1 stated, parabola antenna 1 is rotatably connected on turntable 2, and parabola antenna 1 and control terminal 3 are respectively by sending out
Ray cable and receiving cable connect, and control terminal 3 also connects turntable 2 by angular adjustment cable.
Control terminal 3 includes power amplifier module, echo preprocessing module, data transmitting/acquisition module, parameter setting mould
Block, signal processing module and data processing module.
Turntable 2 carries out the motion of horizontal or vertical direction according to the instruction of control terminal 3, guides the antenna of parabola antenna 1
Reach and specify orientation to be launched and received.Power amplifier module realizes the amplification of low-power acoustical signal, to promote reception transducing
Device 13 and acoustic horn 14.Echo preprocessing module realizes the amplification and filtering of echo signal.Data transmitting/acquisition module is completed
The signal low power transmissions of system and data sampling.Parameter setting module is used to arrange transmitting, reception, the relevant parameter of turntable 2.
Signal processing module is processed the digital signal after sampling, extracts the status information of vapour transfer channel.Data processing
Module is estimated for the vapour transfer channel status information for obtaining carries out rainfall.
This kind of detection sodar system, using the acoustic radar of brand-new working method, using parabola antenna 1 to atmospheric emission
The sound wave echoes that parabola antenna 1 is converged are converted into the signal of telecommunication and are sampled by sound wave using receive transducer 13, obtain numeral
Signal, carries out signal processing, obtains the vapour transfer channel status information in atmosphere target region.By algorithm with regress analysis method
After data processing, the prediction of precipitation data of following certain hour are obtained.
In this kind of detection sodar system, the angle control signal of control terminal output realizes turntable horizontal/vertical orientation
Adjustment.Its adjustment scope be：0-360 ° of level, it is vertical-10-92 °.
This kind of detection sodar system, can apply in atmospheric environment, it is also possible to apply in water, and other can
In gas, liquid, the solid of transmission sound wave, 1 meter of investigative range can be realized to ten thousand metres.This kind of detection sodar system, fits
For " separate unit " and " multiple stage " sodar system.Together with separate unit refers to that emitter and receptor lay, constitute one it is independent
Vapour transfer channel acoustic radar detection system.Multiple stage adopts multiple separate units, separated by a distance, by certain regularly arranged, carries out
Combined detection.
A kind of method for predicting rainfall using above-mentioned detection sodar system, such as Fig. 9 is comprised the following steps,
Parameter setting module arranges transmitting, reception, the relevant parameter of turntable 2, and control turntable 2 drives parabola 11 to point to
Target area, and control data transmitting/acquisition module generates acoustic signals, Jing power amplifier modules realize the amplification of acoustical signal,
Promote acoustic horn 14, Jing cylinder records 15 to be oriented to and amplify, irradiate target area；
The sound wave echoes that parabola 11 is converged are converted into the signal of telecommunication by target area echo using receive transducer 13,
Jing echo preprocessing modules realize the amplification and filtering of echo signal, and by data transmitting/acquisition module complete data sampling and
Data storage；
Signal processing module is processed the digital signal after sampling, extracts the status information of vapour transfer channel；
Data processing module is calculated for the vapour transfer channel status information that sector scanning is obtained using algorithm with regress analysis method, is obtained
To local prediction of precipitation data.
The state for passing through detection vapour transfer channel using the acoustic radar of the brand-new working method of embodiment, can be significantly
Lift the accuracy rate of the prediction of heavy showers in 24 hours.
Claims (9)
1. a kind of parabola antenna, it is characterised in that：Including parabola, support, receive transducer, acoustic horn harmony
Cylinder, is sequentially arranged with receive transducer, acoustic horn, cylinder record on the positive axis direction of parabola, the end of support connects
It is connected on parabola, receive transducer, acoustic horn are respectively arranged on the middle part of support, and receive transducer, acoustics loudspeaker
Direction is reversed, i.e., receive transducer is arranged towards parabola and acoustic horn sets back to parabola
Put, cylinder record is connected on support by connecting rod, and the end connection acoustic horn of cylinder record.
2. parabola antenna as claimed in claim 1, it is characterised in that：Support adopts hollow-core construction, support to be provided with hollow logical
Through transmitting cable and receiving cable in road, hollow channel.
3. parabola antenna as claimed in claim 1 or 2, it is characterised in that：Cylinder record is using cylindrical, spherical, elliposoidal, flat
Spherical, multi-edge column-shaped is tubaeform.
4. parabola antenna as claimed in claim 1 or 2, it is characterised in that：Cylinder record includes cylinder, and cylinder is made of metal,
Inlet sound mouth, outlet sound mouth and hollow sound channel are provided with, the two ends of hollow sound channel are respectively communicated with inlet sound mouth, outlet sound mouth.
5. parabola antenna as claimed in claim 1 or 2, it is characterised in that：The bore of parabola be 0.001 meter extremely
100 meters, the operating frequency of receive transducer is 0.0001Hz to 1GHz.
It is 6. a kind of to detect sodar system, it is characterised in that：Including parabola antenna, turntable and control terminal, parabola antenna
Using the parabola antenna described in any one of claim 1-5, parabola antenna is rotatably connected on turntable, parabola antenna and
Respectively by transmitting cable and receiving cable connection, control terminal also connects turntable to control terminal by angular adjustment cable.
It is 7. as claimed in claim 6 to detect sodar system, it is characterised in that：Control terminal includes power amplifier module, returns
Ripple pretreatment module, data transmitting/acquisition module, parameter setting module, signal processing module and data processing module.
It is 8. as claimed in claim 6 to detect sodar system, it is characterised in that：The acoustic emission of data transmitting/acquisition module
Scope is 0.0001Hz to 1GHz.
9. a kind of usage right requires to detect the method that sodar system predicts rainfall described in any one of 6-8, it is characterised in that：
Comprise the following steps,
Parameter setting module arranges transmitting, reception, the relevant parameter of turntable, and control turntable drives parabola to point to target
Region, and control data transmitting/acquisition module generates acoustic signals, Jing power amplifier modules realize the amplification of acoustical signal, promote
Acoustic horn, Jing cylinder records are oriented to and amplify, and irradiate target area；
The sound wave echoes that parabola is converged are converted into the signal of telecommunication by target area echo using receive transducer, and Jing is returned
Ripple pretreatment module realizes the amplification and filtering of echo signal, and completes data sampling and data by data transmitting/acquisition module
Storage；
Signal processing module is processed the digital signal after sampling, extracts the status information of vapour transfer channel；
Data processing module is calculated for the vapour transfer channel status information that sector scanning is obtained using algorithm with regress analysis method, is obtained
To local prediction of precipitation data.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710045214.4A CN106680820A (en) | 2017-01-22 | 2017-01-22 | Novel parabolic antenna, acoustic radar system for detecting water vapor transfer channel and rainfall predicting method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710045214.4A CN106680820A (en) | 2017-01-22 | 2017-01-22 | Novel parabolic antenna, acoustic radar system for detecting water vapor transfer channel and rainfall predicting method |
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| CN201710045214.4A Pending CN106680820A (en) | 2017-01-22 | 2017-01-22 | Novel parabolic antenna, acoustic radar system for detecting water vapor transfer channel and rainfall predicting method |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4831874A (en) * | 1987-10-16 | 1989-05-23 | Daubin Systems Corporation | Paradac wind measurement system |
| CN1588125A (en) * | 2004-08-11 | 2005-03-02 | 柳威仪 | Method for telemetering precipitation parameter and high frequency Doppler acoustic radar device |
| CN104133216A (en) * | 2014-07-17 | 2014-11-05 | 北京无线电测量研究所 | Method and device for detecting radar acquiring low-altitude wind profiles |
-
2017
- 2017-01-22 CN CN201710045214.4A patent/CN106680820A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4831874A (en) * | 1987-10-16 | 1989-05-23 | Daubin Systems Corporation | Paradac wind measurement system |
| CN1588125A (en) * | 2004-08-11 | 2005-03-02 | 柳威仪 | Method for telemetering precipitation parameter and high frequency Doppler acoustic radar device |
| CN104133216A (en) * | 2014-07-17 | 2014-11-05 | 北京无线电测量研究所 | Method and device for detecting radar acquiring low-altitude wind profiles |
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Application publication date: 20170517 |