CN105527625A - Mixed mode meteorological sounding system and method based on multifunctional phased array radar - Google Patents
Mixed mode meteorological sounding system and method based on multifunctional phased array radar Download PDFInfo
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- CN105527625A CN105527625A CN201510997312.9A CN201510997312A CN105527625A CN 105527625 A CN105527625 A CN 105527625A CN 201510997312 A CN201510997312 A CN 201510997312A CN 105527625 A CN105527625 A CN 105527625A
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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
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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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Abstract
The invention discloses a mixed mode meteorological sounding system and method based on multifunctional phased array radar. Important weather activities are localized, next moving positions thereof are estimated, and then the information is transmitted to a scan scene of next scan cycle, so that radar resources are furthest allocated to localization of important weather activities and tracked meteorological application tasks.
Description
Technical field
The present invention relates to radar monitoring field, be specifically related to a kind of mixed mode aerological sounding system and method based on multifunction array radar.
Background technology
Due to the cause of earth curvature, the major defect of existing remote weather radar is that they lack ability the low weather disaster to medium sea level elevation to be detected.Because the remote sensing of satellite weather can not provide the weather active process of a real-time update.Therefore, the low localized weather active process to intermediate altitude height and accurate location possibly cannot detect.
Multifunction array radar provides three kinds of configurations: two-dimensional phase is swept, one dimension level is swept mutually and swept mutually with One-dimensional Vertical.In meteorological sensor-based system, the scope that each radar coverage one is near, to overcome the problem of earth curvature.By carrying out data fusion to the weather data of each radar node, obtain large-area coverage rate.The design of this radar is for performing multitask simultaneously, can be applied to Ground Target Tracking, maritime surveillance and weather detection etc.; Perform multitask to mean when proposing higher requirement to the radar scanning time to during different task configuration radar resource simultaneously.Here it is why effective radar scanning scene be extremely important for how flexible allocation limited radar emission resource is given different detection mission and met the corresponding task observation time.
Factor due to the formation and movement that have influence on weather phenomenon is very complicated, causes them be difficult to detection and follow the tracks of.Therefore, the moving direction of look-ahead weather phenomenon is wanted just to need a very advanced scanning to be applied in per scan period with new model.The scan mode that existing multifunction array radar uses or scanning scene are mainly used for non-meteorological detection aspect, the application scenarios that more Resourse Distribute can be detected to non-meteorological.Therefore, when using the scan mode of existing multifunction array radar in detection and following the tracks of the activity of fast-changing weather as wind spout, mountain fire smog etc., time turnover rate just there will be serious problem.Significant challenge is how while the sweep time meeting each application task, can accomplish that optimized distribution limited radar transmissions resource is to multiple application task.Such as, can not exceed the sweep time of air traffic control application task and often turn 5 seconds.Therefore, if two air traffic control and meteorological remote sensing application task are run simultaneously, most of radar resource can be assigned as ATC procedures, will likely cause like this losing following the tracks of significant weather active procedure.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the invention provides wherein a kind of object to be to provide a kind of mixed mode aerological sounding system based on multifunction array radar, it carries out optimization collocation in detection with when following the tracks of weather activity to phased array weather radar resource.
To achieve these goals, the technical solution used in the present invention is:
A kind of mixed mode aerological sounding system based on multifunction array radar, it is characterized in that: comprise several radar nodes, some radar nodes connect successively, form radar netting, each radar node comprises the antenna, transmitting-receiving subassembly, Up/Down Conversion device and the medium-frequency receiving and sending driver that are connected successively, described medium-frequency receiving and sending driver output terminal connection data intake device, radar data processor and display module successively, described radar netting input end is connected with radar control and Operating Interface Module by network.
As the improvement of technique scheme, described transmitting-receiving subassembly comprises receiving element, power amplifier, digital-to-analog circuit, Energy control, cooling system and transmitter unit.
As the improvement of technique scheme, described Up/Down Conversion device comprises upconverter and low-converter, described transmitting-receiving subassembly output terminal respectively with upconverter and low-converter, described upconverter output terminal medium-frequency receiving and sending driver connects, and described low-converter input end is connected with medium-frequency receiving and sending driver.
In order to overcome above-mentioned the deficiencies in the prior art, another one object of the present invention is to put forward a kind of mixed mode aerological sounding method based on multifunction array radar, and it carries out optimization collocation in detection with when following the tracks of weather activity to phased array weather radar resource.
To achieve these goals, the technical solution used in the present invention is:
Based on a mixed mode aerological sounding method for multifunction array radar, specifically comprise the following steps:
1) identify and list great meteorological activity: the user of radar or operator select meteorological activity by radar control and Operating Interface Module, radar control and Operating Interface Module load the characteristic parameter of corresponding meteorological activity and the pre-determined model of its moving situation automatically;
2) the great meteorological activity selected by radar netting location;
3) radar netting prediction steps 2) in the following shift position of selected great meteorological activity;
4) radar netting upgrades scanning scene;
5) newly scan scene for the next scan period is run, array antenna is collected Data Concurrent and is sent in radar data processor;
6) digital radar processor processes data and detection, locate great meteorological activity and generate secondary and three grades of Meteorological Products;
7) display module for receive secondary and three grades of Meteorological Products and by step 4) position of the state that upgrades and important weather activity, and to show on map;
8) step 3 is returned).
As the improvement of technique scheme, described step 2) concrete steps are: according to the feature of selected great weather activity, each radar netting can carry out all standing scanning and go to determine whether it exists; Once be identified, orientation, the Distance geometry height of the current location at its place all can go on record.
As the improvement of technique scheme, described step 3) concrete steps are: use predefined pattern and according to the environmental parameter of respective settings as wind speed and direction etc. estimates the following shift position of the important meteorological activity selected.
As the improvement of technique scheme, the concrete steps of the renewal scanning scene in described step 4) are: the position that great meteorological activity is predicted is incorporated radar netting scanning parked position or in the time, and radar beam-pointing may be there is the region of great meteorology on parked position;
As the improvement of technique scheme, collect Data Concurrent in described step 5) and send concrete steps in radar data processor to be:
51) each radar node accepts radar signal by antenna, transmitting-receiving subassembly, Up/Down Conversion device and medium-frequency receiving and sending driver successively;
52) data intake device receives and processes the data from medium-frequency receiving and sending driver;
53) data intake device is converted to the discernible form of digital radar processor the radar signal received;
As the improvement of technique scheme, described step 2) in, the data handling procedure of data intake device comprises correction of data and loses or error in data, or abandons these correction of datas loss or error in data, low beam data is extracted simultaneously.
As the improvement of technique scheme, in described step 6), secondary and three grades of Meteorological Products comprise reflectivity, differential reflectivity, related coefficient, spectrum width, radial velocity and differential phase shift.
The invention has the beneficial effects as follows: a kind of mixed mode aerological sounding system and method based on multifunction array radar, by localizing based on by the activity of important weather, estimate their next shift position, and then these information are passed to the scanning scene of next scan period, distribute radar resource to greatest extent in the localization of significant weather activity and the meteorological application task of tracking.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the invention will be further described:
Fig. 1 is the process flow diagram of the specific embodiment of the invention;
Fig. 2 is the system construction drawing of the specific embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further details:
With reference to accompanying drawing 2, the present invention proposes a kind of mixed mode aerological sounding system based on multifunction array radar, a kind of mixed mode aerological sounding system based on multifunction array radar, comprise several radar nodes, each radar node comprises the antenna 11 connected successively, transmitting-receiving subassembly 12, Up/Down Conversion device 13 and medium-frequency receiving and sending driver 14, it is characterized in that: described medium-frequency receiving and sending driver 14 output terminal connection data intake device 15 successively, radar data processor 16 and display module 2, some radar nodes connect successively, form radar netting 1, described radar netting 1 input end is connected with radar control and Operating Interface Module 3 by network.Described transmitting-receiving subassembly 12 comprises receiving element 121, power amplifier 122, digital-to-analog circuit 123, Energy control 124, cooling system 125 and transmitter unit 126.Described Up/Down Conversion device 13 comprises upconverter 131 and low-converter 132, described transmitting-receiving subassembly 12 output terminal respectively with upconverter 131 and low-converter 132, described upconverter 131 output terminal medium-frequency receiving and sending driver 14 connects, and described down coversion 132 device input end encourages 14 devices to be connected with medium-frequency receiving and sending.
The output terminal of medium-frequency receiving and sending driver 14 can also be connected with data intake device 15, and the output terminal of described data intake device 15 is connected with sea-surface target processor, described targets in ocean display module (being suitable for NMEA agreement) in turn; Described radar netting 1 is connected with a sea surveillance system central processing unit, some user terminals successively by the Internet.The present invention is not shown.
The air traffic control radar be arranged on shore line comprises the antenna of a mechanical rotation in certain direction, sweep speed can up to 5 second one turn, this antenna can transmit and receive low wave beam and high beam signal: low wave beam is for covering earth's surface to intermediate altitude height space, and high wave beam is the space for High aititude height in covering.For the air traffic control radar on shore line, low wave beam can detect terrain object and aerial target simultaneously.Antenna can launch series of electromagnetic pulse to paid close attention to guarded region, and electromagnetic pulse can reflect to antenna by the object in this guarded region.The radar signal that some reflections off objects is returned needs to obtain paying close attention to, be then called as " target ", and the radar signal that other remaining reflections off objects are returned is called as " clutter ", the noise namely in radar system.Earth's surface target is considered to the noise in existing area control radar system, is therefore removed in its signal processing.Usually, the radar data collected from antenna 11 carries out pre-service by the bandpass filter of Data-Link, remove at the outside irrelevant signal of radar data or noise, then radar data solution is transferred to if radar data, then carries out the analog to digital conversion of radar data.Now, radar data is demodulated to base band data (I/Q data), and carries out low-pass filtering and sampling to base band data (I/Q data).This data can be sent to aerial target processor 15 and be further processed, for detection and tracking aerial target.
See Fig. 1, a kind of mixed mode aerological sounding method based on multifunction array radar, mainly comprises the following steps:
1) identify and list great meteorological activity: the user of radar or operator are by radar control and the selected meteorological activity of Operating Interface Module (3), and radar control and Operating Interface Module (3) load the characteristic parameter of corresponding meteorological activity and the pre-determined model of its moving situation automatically.In this step, important meteorological activity is selected by the user of radar or operator.These important meteorological activities comprise hurricane, wind spout, close to the bird in groups of traffic pattern and the smog etc. from forest.For under the weather activity that each is important, system loads the pre-determined model of its its moving situation of characteristic sum automatically.
2) the great meteorological activity selected by radar netting location; According to the feature of selected great weather activity, each radar netting can carry out all standing scanning and go to determine whether it exists; Once be identified, orientation, the Distance geometry height of the current location at its place all can go on record.
3) radar netting prediction steps 2) in the following shift position of selected great meteorological activity; Use predefined pattern and according to the environmental parameter of respective settings as wind speed and direction etc. estimates the following shift position of the important meteorological activity selected.
4) radar netting upgrades scanning scene; In this link, the position pre-estimated of great meteorological activity can be incorporated the parked position of radar scanning scene or in the time, and on this parked position of specifying by radar beam-pointing may occur great meteorological condition and region.May occur that the region area of great meteorological condition is greater than the area estimated from model and obtain usually.Reason adds the variance of estimation when being and incorporating.Under this mode, in the whole areal coverage of radar, only have a little limited area to be scanned by radar, the time of therefore each scanning can shorten.Therefore radar resource may be used for other application tasks, so just can impel and realize a multi-functional phased array of real work.
5) newly scan scene for the next scan period is run, collect Data Concurrent and send in radar data processor; Will through radio frequency receiver by the echoed signal that antenna receives from the parked position corresponding to significant weather activity, low-converter and intermediate-frequency receiver/driver (REX) module.The output of REX is called as the baseband signal of I/Q data.The data of IQ are sent to weather radar data processor by network interface, just in time can be used for the important meteorological activity of detection and positioning.These data comprise the corresponding head pulse fileinfo relevant to great meteorological activity, the beam data of pulse repetition rate and positive northern antenna direction.Before data intake device receives these information, after checking its validity, be decoded as the data layout that radar data processor (RDP) is readable.The responsibility of data intake device identifies and correct the shortage of data or mistake that network service or other reasons due to overload cause, and stop these the incorrect data of transmission to RDP.
6) digital radar processor processes data and detection, locate great meteorological activity and generate secondary and three grades of Meteorological Products; Then this data stream generates second and third level Meteorological Products by the process of radar data processor (RDP), comprises reflectivity, differential reflectivity, related coefficient, spectrum width, radial velocity and differential phase shift.Third application Gauss model self-adaptive processing carries out filtering, eliminates clutter content in data.By the second level and the 3rd series products, can accurately locate important meteorological activity.To the target complex of birds and other biological, RDP is equipped with target tracker and is used for detecting and following the trail of them.
7) display module for receive secondary and three grades of Meteorological Products and by step 4) position of the state that upgrades and important weather activity, and to show on map; Meteorological activity display for the position of the state and significant weather activity that receive secondary and three products and renewal, and shows on map.This display provides the update status of real-time weather harm to operator.
8) step 3 is returned).
More than that the better enforcement of invention is illustrated, but innovation and creation are not limited to described embodiment, those of ordinary skill in the art also can make all equivalent modifications or replacement under the prerequisite without prejudice to spirit of the present invention, and these equivalent modification or replacement are all included in the application's claim limited range.
Claims (10)
1. the mixed mode aerological sounding system based on multifunction array radar, it is characterized in that: comprise several radar nodes, some radar nodes connect successively, form radar netting (1), each radar node comprises the array antenna (11) connected successively, transmitting-receiving subassembly (12), Up/Down Conversion device (13) and medium-frequency receiving and sending driver (14), described medium-frequency receiving and sending driver (14) output terminal connection data intake device (15) successively, radar data processor (16) and display module (2), described radar netting (1) input end is connected with radar control and Operating Interface Module (3) by network.
2., according to a kind of mixed mode aerological sounding system based on multifunction array radar according to claim 1, it is characterized in that: described transmitting-receiving subassembly (12) comprises receiving element (121), power amplifier (122), digital-to-analog circuit (123), Energy control (124), cooling system (125) and transmitter unit (126).
3. according to the mixed mode aerological sounding system based on multifunction array radar a kind of described in claim 1, described Up/Down Conversion device (13) comprises upconverter (131) and low-converter (132), described transmitting-receiving subassembly (12) output terminal is connected with upconverter (131) and low-converter (132) respectively, described upconverter (131) output terminal medium-frequency receiving and sending driver (14) connects, and described low-converter (132) input end is connected with medium-frequency receiving and sending driver (14).
4., based on a mixed mode aerological sounding method for multifunction array radar, specifically comprise the following steps:
1) identify and list great meteorological activity: the user of radar or operator select great meteorological activity by radar control and Operating Interface Module, radar control and Operating Interface Module load the characteristic parameter of corresponding meteorological activity and the pre-determined model of its moving situation automatically;
2) the great meteorological activity selected by radar netting location;
3) the following shift position of the selected great meteorological activity of radar netting prediction;
4) radar netting upgrades scanning scene;
5) newly scan scene for the next scan period is run, array antenna is collected Data Concurrent and is delivered in radar data processor;
6) digital radar processor processes data and detection, locate great meteorological activity and generate secondary and three grades of Meteorological Products;
7) display module for receive secondary and three grades of Meteorological Products and by step 4) position of the state that upgrades and important weather activity, and to show on map;
8) step 3 is returned).
5. a kind of mixed mode aerological sounding method based on multifunction array radar according to claim 4, it is characterized in that: described step 2) concrete steps are: according to the feature of selected great weather activity, each radar netting can carry out all standing scanning and go to determine whether it exists; Once be identified, orientation, the Distance geometry height of the current location at its place all can go on record.
6. a kind of mixed mode aerological sounding method based on multifunction array radar according to claim 4, is characterized in that: described step 3) concrete steps are: use predefined pattern and according to the environmental parameter of respective settings as wind speed and direction etc. estimates the following shift position of the important meteorological activity selected.
7. a kind of mixed mode aerological sounding method based on multifunction array radar according to claim 4, it is characterized in that: the concrete steps of renewal in described step 4) scanning scene are: the position that great meteorological activity is predicted is incorporated radar netting scanning parked position or in the time, and radar beam-pointing may be there is the region of great meteorology on parked position.
8. a kind of mixed mode aerological sounding method based on multifunction array radar according to claim 4, is characterized in that: collect Data Concurrent in described step 5) and send concrete steps in radar data processor to be:
51) each radar node accepts radar signal by antenna, transmitting-receiving subassembly, Up/Down Conversion device and medium-frequency receiving and sending driver successively;
52) data intake device receives and processes the data from medium-frequency receiving and sending driver;
53) data intake device is converted to the discernible form of digital radar processor the radar signal received.
9. a kind of mixed mode aerological sounding method based on multifunction array radar according to claim 8, it is characterized in that: described step 52) in the data handling procedure of data intake device comprise correction of data and lose or error in data, or abandon these correction of datas to lose or error in data, low beam data is extracted simultaneously.
10. a kind of mixed mode aerological sounding method based on multifunction array radar according to claim 4, it is characterized in that: in described step 6), secondary and three grades of Meteorological Products comprise reflectivity, differential reflectivity, related coefficient, spectrum width, radial velocity and differential phase shift.
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Application publication date: 20160427 |