CN108051816B - Array weather radar collaborative scanning system and method - Google Patents
Array weather radar collaborative scanning system and method Download PDFInfo
- Publication number
- CN108051816B CN108051816B CN201711380425.XA CN201711380425A CN108051816B CN 108051816 B CN108051816 B CN 108051816B CN 201711380425 A CN201711380425 A CN 201711380425A CN 108051816 B CN108051816 B CN 108051816B
- Authority
- CN
- China
- Prior art keywords
- transceiver unit
- radar
- radar transceiver
- antenna
- unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
The invention provides an array weather radar collaborative scanning system and a method, wherein the system comprises: the radar detection system comprises a plurality of radar receiving and transmitting units and a computer terminal, wherein the radar receiving and transmitting units are arranged in an array according to a triangular structure, the radar receiving and transmitting units form a three-dimensional detection area, each radar receiving and transmitting unit comprises an antenna, an antenna direction servo motor connected with the antenna, a direction servo motor control module connected with the antenna direction servo motor and a communication module connected with the motor control module, and the direction servo motor control module is connected with the computer control terminal through the communication module; and the computer control terminal controls the rotation of the antenna through the motor control module, so that the respective starting azimuth time when the antenna scanning lines of the plurality of radar transceiving units reach the three-dimensional detection area is fixed time. The invention reduces the synthetic error of the movement speed of the weather radar for detecting the cloud and the rain, and improves the accuracy of the weather radar for detecting the atmospheric movement.
Description
Technical Field
The invention relates to the technical field of atmospheric science, in particular to an array weather radar collaborative scanning system and method.
Background
With the development of scientific technology, more and more advanced technologies are applied to the field of weather prediction, such as weather satellites, weather radars, and the like. The weather satellite can well observe the planet scale and large scale weather circulation, for example, on a satellite cloud picture, the atmospheric circulation of the whole earth can be observed, the movement track of typhoon can be predicted, but for the strong convection weather in a small range, the weather phenomenon can not be detected by the satellite due to the small scale and the small range, the coming and going are fast, and the weather radar in a local area is needed.
The existing common weather radar can well observe the mesoscale (the horizontal scale is 10)2km), but low-altitude targets are not easy to detect, spatial resolution is low, scanning speed is slow, time difference is large, and reliability of synthesized data is low becauseBut cannot reveal small-scale circulating currents with small spatial dimensions and fast changes.
The kernel of the strong weather phenomena in real life, such as rainstorm, hail and other disastrous weather, is a small-scale weather system. The method adopted for predicting the small-scale weather condition in the prior art is usually a networked radar system, but the networked radar has low scanning speed and large synthesis error.
Disclosure of Invention
The invention aims to provide an array weather radar collaborative scanning system and method, which can reduce the synthetic error of the weather radar in detecting the movement speed of cloud and rain and improve the accuracy of the weather radar in detecting atmospheric movement.
In order to achieve the above object, the present invention provides an array weather radar collaborative scanning system, including: the radar detection system comprises a plurality of radar receiving and transmitting units and a computer control terminal, wherein the radar receiving and transmitting units and the computer control terminal are arranged in an array according to a triangular structure, the radar receiving and transmitting units form a three-dimensional detection area, each radar receiving and transmitting unit comprises an antenna, an antenna direction servo motor connected with the antenna, a direction servo motor control module connected with the antenna direction servo motor and a communication module connected with the motor control module, and the direction servo motor control module is connected with the computer control terminal through the communication module; and the computer control terminal controls the rotation of the antenna through the motor control module, so that the respective starting azimuth time when the antenna scanning lines of the plurality of radar transceiving units reach the three-dimensional detection area is fixed time.
Further, in the array weather radar collaborative scanning system, an antenna azimuth angle sensor is further arranged on the antenna, and the antenna azimuth angle sensor is used for detecting the direction of the antenna and sending direction data to the azimuth servo motor control module.
Further, in the array weather radar collaborative scanning system, the plurality of radar transceiver units include a first radar transceiver unit, a second radar transceiver unit and a third radar transceiver unit, an extension line direction of the second radar transceiver unit and the first radar transceiver unit is defined as an azimuth 0 degree, clockwise rotation of antennas of the first radar transceiver unit, the second radar transceiver unit and the third radar transceiver unit is 0-360 degrees, and rotation of antennas of the radar transceiver units is controlled through the computer control terminal and the motor control module, so that respective starting azimuth time when antenna scanning lines of the first radar transceiver unit, the second radar transceiver unit and the third radar transceiver unit reach the three-dimensional detection area is fixed time.
Further, in the array weather radar collaborative scanning system, the scanning start position of the antenna of the first radar transceiver unit is 0 degree, the scanning start position of the antenna of the second radar transceiver unit is 120 degrees, the scanning start position of the antenna of the third radar transceiver unit is 240 degrees, and the time for the antenna of the first radar transceiver unit, the antenna of the second radar transceiver unit, and the antenna of the third radar transceiver unit to scan to reach the respective start positions is T + n × 9 seconds;
and T is the time when the antenna of the first radar transceiver unit, the second radar transceiver unit and the third radar transceiver unit scans to reach the initial position for the first time, and n is the body scanning sequence number.
Further, in the array weather radar collaborative scanning system, the plurality of radar transceiver units include a first radar transceiver unit, a second radar transceiver unit, a third radar transceiver unit, a fourth radar transceiver unit, a fifth radar transceiver unit, a sixth radar transceiver unit, and a seventh radar transceiver unit;
the first radar transceiver unit is positioned in the center of a regular hexagon, the second radar transceiver unit, the third radar transceiver unit, the fourth radar transceiver unit, the fifth radar transceiver unit, the sixth radar transceiver unit and the seventh radar transceiver unit are sequentially positioned at the vertex of the regular hexagon, and the second radar transceiver unit, the third radar transceiver unit, the fourth radar transceiver unit, the fifth radar transceiver unit, the sixth radar transceiver unit and the seventh radar transceiver unit sequentially correspond to the first radar transceiver unit to form six three-dimensional detection areas; the antennas of the first radar transceiver unit, the second radar transceiver unit, the third radar transceiver unit, the fourth radar transceiver unit, the fifth radar transceiver unit, the sixth radar transceiver unit and the seventh radar transceiver unit are scanned for 360 degrees, and the rotation of the antennas of the radar transceiver units is controlled through the computer control terminal and the motor control module, so that the respective starting azimuth time when the antenna scanning lines of the first radar transceiver unit, the second radar transceiver unit, the third radar transceiver unit, the fourth radar transceiver unit, the fifth radar transceiver unit, the sixth radar transceiver unit and the seventh radar transceiver unit reach the corresponding three-dimensional detection areas is fixed time.
Further, in the array weather radar collaborative scanning system, the antenna of the first radar transceiver unit rotates clockwise for scanning, the antennas of the second radar transceiver unit, the third radar transceiver unit, the fourth radar transceiver unit, the fifth radar transceiver unit, the sixth radar transceiver unit and the seventh radar transceiver unit rotate counterclockwise for scanning, and the extension line direction of the connection line of the first radar transceiver unit and the second radar transceiver unit is 0 degree; the antenna of the first radar transceiver unit scans to reach 0 degree, the antenna of the second radar transceiver unit scans to reach 180 degrees, and the time for the antenna of the third radar transceiver unit to scan to reach 300 degrees is T + n 9 seconds; the time for the antenna of the fourth radar transceiving unit to scan to reach 0 degree is T + n 9+1.5 seconds; the time for the antenna of the fifth radar transceiver unit E to scan to reach 60 degrees is T + n × 9+3 seconds; the time for the antenna of the sixth radar transceiver unit to scan to reach 120 degrees is T + n 9+4.5 seconds; the time for the antenna of the seventh radar transceiving unit to scan to reach 180 degrees is T + n 9+6 seconds; wherein, T is the time when the antenna of the first radar transceiver unit scans to reach the initial position for the first time, and n is the body scanning sequence number.
In addition, the invention also provides a scanning method of the array weather radar collaborative scanning system, which comprises the following steps:
step S1: the computer control terminal sends a control command to the azimuth servo motor control module, wherein the control command comprises the rotation speed, the initial azimuth and the time of passing the initial azimuth of the antenna of the radar transceiver unit;
step S2: the azimuth servo motor control module controls an antenna azimuth servo motor to work so as to drive an antenna of the radar transceiver unit to perform rotary scanning according to the control command;
step S3: and the computer control terminal controls the rotation of the antenna according to the antenna direction data acquired by the antenna azimuth angle sensor, so that the respective starting azimuth time when the antenna scanning lines of the plurality of radar transceiver units reach the three-dimensional detection area is fixed time.
According to the invention, the time difference of the data detected by the radar transceiver units is smaller by controlling the respective starting azimuth time of the antenna scanning lines of the plurality of radar transceiver units to reach the three-dimensional detection area to be fixed time, so that the synthetic error of the movement speed of the weather radar for detecting the cloud and the rain is reduced, and the accuracy of the weather radar for detecting the atmospheric movement is improved.
Drawings
FIG. 1 is a schematic structural diagram of an array weather radar collaborative scanning system according to the present invention;
FIG. 2 is a schematic structural diagram of a first embodiment of an array radar of the array weather radar collaborative scanning system according to the present invention;
FIG. 3 is a schematic structural diagram of a second array radar of the array weather radar collaborative scanning system according to the present invention;
fig. 4 is a schematic flow chart of the array weather radar collaborative scanning method of the present invention.
Detailed Description
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Referring to fig. 1 to 3, fig. 1 is a schematic structural diagram of an array weather radar cooperative scanning system according to the present invention.
The array weather radar collaborative scanning system comprises: the method comprises the following steps that a plurality of radar transceiver units 10 and a computer control terminal 20 are arranged in an array according to a triangular structure, the plurality of radar transceiver units 10 form a three-dimensional detection area, each radar transceiver unit 10 comprises an antenna 101, an antenna azimuth servo motor 102 connected with the antenna 101, an azimuth servo motor control module 103 connected with the antenna azimuth servo motor 102 and a communication module 104 connected with the azimuth servo motor control module 103, and the azimuth servo motor control module 103 is connected with the computer control terminal 20 through the communication module 104; the computer control terminal 20 controls the rotation of the antenna 101 through the azimuth servo motor control module 103, so that the respective starting azimuth time when the scanning lines of the antenna 101 of the plurality of radar transceiver units 10 reach the three-dimensional detection area is fixed time.
The array weather radar is composed of more than three radar transceiving units. The antenna 101 is further provided with an antenna azimuth angle sensor 105, and the antenna azimuth angle sensor 105 is used for detecting the direction of the antenna and sending direction data to the azimuth servo motor control module 103. In this way, the computer control terminal 20 sets parameters such as the rotation speed, the start azimuth, the time to pass the start azimuth, and the like of the antenna 101 through the motor control module 103, thereby controlling the rotation of the antenna 101 of each radar transceiver unit 10.
The computer control terminal 20 is located at a radar central station, the azimuth servo motor control module 103 receives a control command of the computer terminal 20 of the radar central station and controls the antenna azimuth servo motor 102 to work, the antenna azimuth servo motor 102 controls the motor rotating speed, collects antenna azimuth angle sensor data and transmits the data collected by the antenna azimuth angle sensor 105 to the central station computer terminal 20, the antenna azimuth servo motor 102 drives the antenna 101 to rotate, and the antenna azimuth angle sensor 105 detects the direction data of the antenna 101.
Referring to fig. 2, fig. 2 is a schematic structural diagram of an array radar of the array weather radar cooperative scanning system according to a first embodiment of the present invention. In this embodiment, the number of the plurality of radar transceiver units is three, that is, the plurality of radar transceiver units includes a first radar transceiver unit a, a second radar transceiver unit B, and a third radar transceiver unit C; the three-dimensional detection area I is a triangular prism-shaped area with a triangle formed by the first radar transceiver unit A, the second radar transceiver unit B and the third radar transceiver unit C as a base, the base of the three-dimensional detection area I is about 20 KM-50 KM, and the height of the three-dimensional detection area I is about 20 KM.
The antenna 101 of the radar transceiver unit 10 is driven by the antenna azimuth servo motor 102 to rotate in azimuth, so as to scan and detect the three-dimensional detection sub-area I, wherein the extension line direction of C, A is defined as 0 degree in azimuth, and the clockwise rotation of the antenna 101 of the first radar transceiver unit a, the second radar transceiver unit B and the third radar transceiver unit C is 0-360 degrees.
The detection data of the three-dimensional detection area I comprise three motion components of a moving object (cloud and rain) in the three-dimensional detection area I, namely three groups of intensity data Z1 (x, y, Z), Z2 (x, y, Z), Z3 (x, y, Z) and three groups of radial velocity data V1 (x, y, Z), V2 (x, y, Z) and V3 (x, y, Z), and if the three groups of data are data at the same time, the motion velocity of the cloud and the rain can be synthesized; if the three data are not data at the same time, the movement speed of the cloud and the rain obtained by synthesis has an error, and the error is increased along with the increase of the time difference between the data, so that the obtained speed is invalid. It is therefore desirable that the time differences between the three radar transceiver units scanning the triangular area be as small as possible.
It should be noted that, a triangular structure formed by three radar transceiver units in this embodiment is the most basic structure of the array weather radar, and on this basis, one to two new three-dimensional detection areas will be added to form a larger three-dimensional detection area when one radar transceiver unit is added.
In this embodiment, the scanning modes of the array weather radar include two types:
one is a fan-scanning mode, namely, the antennas of the first radar transceiver unit a, the second radar transceiver unit B and the third radar transceiver unit C, which are used as the vertexes of the triangle, are scanned synchronously, namely, the first radar transceiver unit a, the second radar transceiver unit B and the third radar transceiver unit C scan and detect the three-dimensional detection sub-area I synchronously according to the angle of the vertex angle of the triangle (the rotation speed of the antennas of the three radar transceiver units 10 is the same), so that the whole three-dimensional detection sub-area I is covered synchronously, and thus, the time difference of data scanned and detected by the antennas of the first radar transceiver unit a, the second radar transceiver unit B and the third radar transceiver unit C is minimum, the synthetic error of the movement speed of the weather radar detection cloud and the rain is reduced, and the accuracy of the weather radar detection atmospheric movement is improved.
Particularly, when the delta ABC is an equilateral triangle, the direction of the arrow is zero degrees, the direction angle corresponding to the angle ACB is 0-60 degrees, the direction angle corresponding to the angle CAB is 120-180 degrees, and the direction angle corresponding to the angle ABC is 240-300 degrees. The first radar transceiver unit A, the second radar transceiver unit B and the third radar transceiver unit C perform synchronous sector scanning, and the scanning ranges of the antennas of the three radar transceiver units 10 are 0-60 degrees, 120-180 degrees and 240-300 degrees respectively. Namely, when the antennas of the first radar transceiver unit a, the second radar transceiver unit B and the third radar transceiver unit C adopt the fan scanning mode for cooperative scanning, the antennas of the first radar transceiver unit a, the second radar transceiver unit B and the third radar transceiver unit C only need to be subjected to fan scanning in a specified scanning range, and the time difference of scanning and detecting data can be minimized.
The other mode is a 360-degree scanning mode, that is, the antennas of the first radar transceiver unit a, the second radar transceiver unit B, and the third radar transceiver unit C all perform 360-degree scanning, and the computer control terminal 20 and the motor control module 103 control the rotation of the antenna 101 of the radar transceiver unit, so that the respective starting azimuth time when the antenna scanning lines of the first radar transceiver unit a, the second radar transceiver unit B, and the third radar transceiver unit C reach the three-dimensional detection area I is fixed time. Therefore, the scanning lines of the three radar receiving and transmitting units are simultaneously in the three-dimensional detection area I, and the minimum time difference of the detection data of the three radar receiving and transmitting units at the same space point of the three-dimensional detection area I is realized.
In this embodiment, the initial scanning direction of the antenna of the first radar transceiver unit a is 0 degree, the initial scanning direction of the antenna of the second radar transceiver unit B is 120 degrees, the initial scanning direction of the antenna of the third radar transceiver unit C is 240 degrees, and the time for the antenna of the first radar transceiver unit a, the antenna of the second radar transceiver unit B, and the antenna of the third radar transceiver unit C to scan to reach the respective initial directions is T + n × 9 seconds; where T is a time (seconds with a zero point as a base point, such as 10 beijing, T = 36000) when the antenna of the first radar transceiver unit a, the second radar transceiver unit B, and the third radar transceiver unit C scans to reach the starting azimuth (0 degrees, 120 degrees, 240 degrees) for the first time, and n is a volume scan number. The body scanning sequence number refers to a scanning sequence number of the antennas of the first radar transceiver unit a, the second radar transceiver unit B and the third radar transceiver unit C in a 0-360-degree rotation process, namely, when the antennas of the radar transceiver units complete 0-360-degree azimuth rotation, 0-90-degree elevation scanning is performed at intervals of about 1.5 degrees of azimuth angles. Therefore, the whole 0-360 degree rotation process can complete the space volume scanning of 0-360 degrees of azimuth and 0-90 degrees of elevation, which is called volume scanning for short.
Referring to fig. 3, fig. 3 is a schematic structural diagram of a second array radar of the array weather radar cooperative scanning system according to the second embodiment of the present invention. In this embodiment, the number of the plurality of radar transceiver units is seven (seven-unit array weather radar), that is, the radar includes a first radar transceiver unit a, a second radar transceiver unit B, a third radar transceiver unit C, a fourth radar transceiver unit D, a fifth radar transceiver unit E, a sixth radar transceiver unit F and a seventh radar transceiver unit G, wherein the first radar transceiver unit a is located at the center of a regular hexagon, the second radar transceiver unit B, the third radar transceiver unit C, the fourth radar transceiver unit D, the fifth radar transceiver unit E, the sixth radar transceiver unit F and the seventh radar transceiver unit G are sequentially located at the vertex of the regular hexagon, and the second radar transceiver unit B, the third radar transceiver unit C, the fourth radar transceiver unit D, the fifth radar transceiver unit E, the sixth radar transceiver unit F and the seventh radar transceiver unit G sequentially correspond to form six three-dimensional detection three-dimensional radar transceiver units between the first radar transceiver unit a Test areas (I, II, III, IV, V and VI);
in this implementation, the antennas of the first radar transceiver unit a, the second radar transceiver unit B, the third radar transceiver unit C, the fourth radar transceiver unit D, the fifth radar transceiver unit E, the sixth radar transceiver unit F and the seventh radar transceiver unit G all perform 360-degree scanning, and the computer control terminal 20 and the motor control module 103 control the rotation of the antenna 101 of the radar transceiver unit, so that the respective starting azimuth time when the antenna scanning lines of the first radar transceiver unit a, the second radar transceiver unit B, the third radar transceiver unit C, the fourth radar transceiver unit D, the fifth radar transceiver unit E, the sixth radar transceiver unit F and the seventh radar transceiver unit G reach the corresponding three-dimensional detection areas is fixed time.
Specifically, in this embodiment, the antenna of the first radar transceiver unit a performs clockwise rotation scanning, the antennas of the second radar transceiver unit B, the third radar transceiver unit C, the fourth radar transceiver unit D, the fifth radar transceiver unit E, the sixth radar transceiver unit F and the seventh radar transceiver unit G perform counterclockwise rotation scanning, and an outward extension line direction of a connection line between the first radar transceiver unit a and the second radar transceiver unit B is 0 degree; the antenna scanning of the first radar transceiver unit A reaches 0 degree, the antenna scanning of the second radar transceiver unit B reaches 180 degrees, and the time for the antenna scanning of the third radar transceiver unit C to reach 300 degrees is T + n 9 seconds; the time for the antenna of the fourth radar transceiver unit D to scan to reach 0 degrees is T + n × 9+1.5 seconds; the time for the antenna of the fifth radar transceiver unit E to scan to reach 60 degrees is T + n × 9+3 seconds; the time for the antenna of the sixth radar transceiver unit F to scan to reach 120 degrees is T + n × 9+4.5 seconds; the time for the antenna of the seventh radar transceiver unit G to scan to reach 180 degrees is T + n × 9+6 seconds; where T is the time (seconds with zero point as the base point, for example, 10 beijing, T = 36000) when the antenna of the first radar transceiver unit a scans the first time to reach the starting azimuth (0 degrees), and n is the body scan number. The body scanning sequence number refers to a scanning sequence number of the antennas of the first radar transceiver unit a, the second radar transceiver unit B and the third radar transceiver unit C in a 0-360-degree rotation process, namely, when the antennas of the radar transceiver units complete 0-360-degree azimuth rotation, 0-90-degree elevation scanning is performed at intervals of about 1.5 degrees of azimuth angles. Therefore, the whole 0-360 degree rotation process can complete the space volume scanning of 0-360 degrees of azimuth and 0-90 degrees of elevation, which is called volume scanning for short.
The 360-degree scanning mode requires that the radar transceiver unit has the capability of controlling the rotation speed of the antenna, and the servo rotation speed is adjusted in real time according to the morning and evening of the initial azimuth time when the antenna passes through the three-dimensional detection area. The scanning mode enables the time difference of data detected by the three radar receiving and transmitting units to be about 1 second, and is far smaller than the time difference (60-360 seconds) of different radar data detected by other existing weather radar networks.
Referring to fig. 4, fig. 4 is a schematic flow chart of the array weather radar collaborative scanning method according to the present invention. The method comprises the following steps:
step S1: the computer control terminal 20 sends a control command to the azimuth servo motor control module 103, wherein the control command comprises the rotation speed, the initial azimuth and the time of passing the initial azimuth of the antenna 101 of the radar transceiver unit 10;
step S2: the azimuth servo motor control module 103 controls the antenna azimuth servo motor 102 to work so as to drive the antenna 101 of the radar transceiver unit 10 to perform rotary scanning according to the control command;
step S3: the computer control terminal 20 controls the rotation of the antenna 101 according to the antenna direction data collected by the antenna azimuth angle sensor 105, so that the respective starting azimuth time when the antenna scanning lines of the radar transceiver unit 101 reach the three-dimensional detection area is fixed time.
As an embodiment of the present invention, the step S3 specifically includes:
the antenna scanning starting position of the first radar transceiver unit A is 0 degree, the antenna scanning starting position of the second radar transceiver unit B is 120 degrees, the antenna scanning starting position of the third radar transceiver unit C is 240 degrees, and the time for the antennas of the first radar transceiver unit A, the second radar transceiver unit B and the third radar transceiver unit C to scan to reach the respective starting positions is T + n 9 seconds; where T is a time (seconds with a zero point as a base point, such as 10 beijing, T = 36000) when the antenna of the first radar transceiver unit a, the second radar transceiver unit B, and the third radar transceiver unit C scans to reach the starting azimuth (0 degrees, 120 degrees, 240 degrees) for the first time, and n is a volume scan number. The body scanning sequence number refers to a scanning sequence number of the antennas of the first radar transceiver unit a, the second radar transceiver unit B and the third radar transceiver unit C in a 0-360-degree rotation process, namely, when the antennas of the radar transceiver units complete 0-360-degree azimuth rotation, 0-90-degree elevation scanning is performed at intervals of about 1.5 degrees of azimuth angles. Therefore, the whole 0-360 degree rotation process can complete the space volume scanning of 0-360 degrees of azimuth and 0-90 degrees of elevation, which is called volume scanning for short.
As another embodiment of the present invention, the step S3 specifically includes:
the antenna of the first radar transceiver unit A is rotated clockwise for scanning, the antennas of the second radar transceiver unit B, the third radar transceiver unit C, the fourth radar transceiver unit D, the fifth radar transceiver unit E, the sixth radar transceiver unit F and the seventh radar transceiver unit G are rotated anticlockwise for line defense for scanning, and the direction of an outward extension line of a connecting line of the first radar transceiver unit A and the second radar transceiver unit B is 0 degree; the antenna scanning of the first radar transceiver unit A reaches 0 degree, the antenna scanning of the second radar transceiver unit B reaches 180 degrees, and the time for the antenna scanning of the third radar transceiver unit C to reach 300 degrees is T + n 9 seconds; the time for the antenna of the fourth radar transceiver unit D to scan to reach 0 degrees is T + n × 9+1.5 seconds; the time for the antenna of the fifth radar transceiver unit E to scan to reach 60 degrees is T + n × 9+3 seconds; the time for the antenna of the sixth radar transceiver unit F to scan to reach 120 degrees is T + n × 9+4.5 seconds; the time for the antenna of the seventh radar transceiver unit G to scan to reach 180 degrees is T + n × 9+6 seconds; wherein T is a time when the antenna of the first radar transceiver unit a scans to reach the initial position (0 degrees) for the first time, and n is a body scanning sequence number.
Compared with the prior art, the method and the device have the advantages that the time when the antenna scanning lines of the plurality of radar transceiving units reach the starting point of the three-dimensional detection area is controlled to be fixed time, so that the time difference of data detected by the radar transceiving units is small, the synthetic error of the weather radar for detecting the movement speed of cloud and rain is reduced, and the accuracy of the weather radar for detecting the atmospheric movement is improved.
The description and applications of the invention herein are illustrative and are not intended to limit the scope of the invention to the embodiments described above. Variations and modifications of the embodiments disclosed herein are possible, and alternative and equivalent various components of the embodiments will be apparent to those skilled in the art. It will be clear to those skilled in the art that the present invention may be embodied in other forms, structures, arrangements, proportions, and with other components, materials, and parts, without departing from the spirit or essential characteristics thereof. Other variations and modifications of the embodiments disclosed herein may be made without departing from the scope and spirit of the invention.
Claims (2)
1. An arrayed weather radar collaborative scanning system, comprising: the radar detection system comprises a plurality of radar receiving and transmitting units and a computer control terminal, wherein the radar receiving and transmitting units and the computer control terminal are arranged in an array according to a triangular structure, the radar receiving and transmitting units form a three-dimensional detection area, each radar receiving and transmitting unit comprises an antenna, an antenna direction servo motor connected with the antenna, a direction servo motor control module connected with the antenna direction servo motor and a communication module connected with the motor control module, and the direction servo motor control module is connected with the computer control terminal through the communication module; the computer control terminal controls the rotation of the antenna through the motor control module, so that the respective starting azimuth time when the antenna scanning lines of the plurality of radar transceiving units reach the three-dimensional detection area is fixed time;
the antenna is also provided with an antenna azimuth angle sensor, and the antenna azimuth angle sensor is used for detecting the direction of the antenna and sending direction data to the azimuth servo motor control module;
the plurality of radar receiving and transmitting units comprise a first radar receiving and transmitting unit, a second radar receiving and transmitting unit, a third radar receiving and transmitting unit, a fourth radar receiving and transmitting unit, a fifth radar receiving and transmitting unit, a sixth radar receiving and transmitting unit and a seventh radar receiving and transmitting unit; the first radar transceiver unit is positioned in the center of a regular hexagon, the second radar transceiver unit, the third radar transceiver unit, the fourth radar transceiver unit, the fifth radar transceiver unit, the sixth radar transceiver unit and the seventh radar transceiver unit are sequentially positioned at the vertex of the regular hexagon, and the second radar transceiver unit, the third radar transceiver unit, the fourth radar transceiver unit, the fifth radar transceiver unit, the sixth radar transceiver unit and the seventh radar transceiver unit sequentially correspond to the first radar transceiver unit to form six three-dimensional detection areas; the antennas of the first radar transceiver unit, the second radar transceiver unit, the third radar transceiver unit, the fourth radar transceiver unit, the fifth radar transceiver unit, the sixth radar transceiver unit and the seventh radar transceiver unit are scanned for 360 degrees, and the rotation of the antennas of the radar transceiver units is controlled through a computer control terminal and a motor control module, so that the respective starting azimuth time when the antenna scanning lines of the first radar transceiver unit, the second radar transceiver unit, the third radar transceiver unit, the fourth radar transceiver unit, the fifth radar transceiver unit, the sixth radar transceiver unit and the seventh radar transceiver unit reach the corresponding three-dimensional detection areas is fixed;
the antenna of the first radar transceiver unit rotates clockwise for scanning, the antennas of the second radar transceiver unit, the third radar transceiver unit, the fourth radar transceiver unit, the fifth radar transceiver unit, the sixth radar transceiver unit and the seventh radar transceiver unit rotate anticlockwise for scanning, and the direction of an outward extension line of a connecting line of the first radar transceiver unit and the second radar transceiver unit is 0 degree; the antenna of the first radar transceiver unit scans to reach 0 degree, the antenna of the second radar transceiver unit scans to reach 180 degrees, and the time for the antenna of the third radar transceiver unit to scan to reach 300 degrees is T + n 9 seconds; the time for the antenna of the fourth radar transceiving unit to scan to reach 0 degree is T + n 9+1.5 seconds; the time for the antenna of the fifth radar transceiving unit to scan to reach 60 degrees is T + n 9+3 seconds; the time for the antenna of the sixth radar transceiver unit to scan to reach 120 degrees is T + n 9+4.5 seconds; the time for the antenna of the seventh radar transceiving unit to scan to reach 180 degrees is T + n 9+6 seconds; wherein, T is the time when the antenna of the first radar transceiver unit scans to reach the initial position for the first time, and n is the body scanning sequence number.
2. The scanning method of the arrayed weather radar collaborative scanning system of claim 1, wherein the method comprises the following steps:
step S1: the computer control terminal sends a control command to the azimuth servo motor control module, wherein the control command comprises the rotation speed, the initial azimuth and the time of passing the initial azimuth of an antenna of the radar transceiver unit;
step S2: the azimuth servo motor control module controls an antenna azimuth servo motor to work so as to drive an antenna of the radar transceiver unit to perform rotary scanning according to the control command;
step S3: and the computer control terminal controls the rotation of the antenna according to the antenna direction data acquired by the antenna azimuth angle sensor, so that the respective starting azimuth time when the antenna scanning line of the radar transceiver unit reaches the three-dimensional detection area is fixed time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711380425.XA CN108051816B (en) | 2017-12-20 | 2017-12-20 | Array weather radar collaborative scanning system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711380425.XA CN108051816B (en) | 2017-12-20 | 2017-12-20 | Array weather radar collaborative scanning system and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108051816A CN108051816A (en) | 2018-05-18 |
| CN108051816B true CN108051816B (en) | 2021-10-12 |
Family
ID=62130196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711380425.XA Active CN108051816B (en) | 2017-12-20 | 2017-12-20 | Array weather radar collaborative scanning system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108051816B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109061650A (en) * | 2018-08-10 | 2018-12-21 | 北京无线电测量研究所 | Networking detection method and system based on array weather radar |
| CN109557543B (en) * | 2018-11-27 | 2020-07-28 | 安徽四创电子股份有限公司 | Meteorological detection and target monitoring method based on azimuth rotation phased array radar |
| CN109541603B (en) * | 2018-12-10 | 2023-10-03 | 北京无线电测量研究所 | Digital array radar wind profile detection method and system based on full correlation analysis |
| CN109633562B (en) * | 2019-01-14 | 2023-09-08 | 雷象科技（北京）有限公司 | Array weather radar transceiver subarray horizontal rotation servo azimuth synchronization device and method |
| CN111398949B (en) * | 2020-04-10 | 2022-04-29 | 江苏省气象科学研究所 | Networking X-band radar-based self-adaptive collaborative scanning method |
| CN114265016B (en) * | 2021-12-28 | 2023-04-14 | 河北德冠隆电子科技有限公司 | Multi-angle adjustment wide area radar sensor system and method |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1932212B1 (en) * | 2005-11-21 | 2010-03-17 | Plextek Limited | Frequency scanning antenna |
| US8786338B2 (en) * | 2011-11-14 | 2014-07-22 | Texas Instruments Incorporated | Delay locked loop |
| CN104459636A (en) * | 2014-12-11 | 2015-03-25 | 南京长江电子信息产业集团有限公司 | Multi-radar antenna coordination control method |
| CN104569981A (en) * | 2015-01-28 | 2015-04-29 | 中国科学院大气物理研究所 | Synergy self-adaption observing method |
| CN104730524A (en) * | 2015-03-11 | 2015-06-24 | 马舒庆 | Array weather radar detection system and method |
| WO2016083492A3 (en) * | 2014-11-26 | 2016-07-28 | Maritime Radar Systems Limited | A system for monitoring a maritime environment |
| CN106211351A (en) * | 2016-07-22 | 2016-12-07 | 中国船舶重工集团公司第七二四研究所 | A kind of radar cooperative nodes is with meeting cut-in method |
| CN106383350A (en) * | 2016-09-30 | 2017-02-08 | 贵州省威宁彝族回族苗族自治县气象局 | Weather radar remote command operation control system and control method thereof |
| CN107064937A (en) * | 2017-06-07 | 2017-08-18 | 孝感市青谷信息科技有限公司 | A kind of measuring method of Dual-linear polarization radar system and strong rain |
| CN107450076A (en) * | 2017-07-19 | 2017-12-08 | 清华大学 | The collaboration networking measuring method and device of cloud detection radar |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104215955B (en) * | 2014-08-22 | 2017-12-05 | 西安华腾微波有限责任公司 | Low-power millimeter wave surveys cloud method |
| CN106383349A (en) * | 2016-08-31 | 2017-02-08 | 贵州省江口县气象局 | Rainfall estimating system and method based on X-waveband Doppler radar |
-
2017
- 2017-12-20 CN CN201711380425.XA patent/CN108051816B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1932212B1 (en) * | 2005-11-21 | 2010-03-17 | Plextek Limited | Frequency scanning antenna |
| US8786338B2 (en) * | 2011-11-14 | 2014-07-22 | Texas Instruments Incorporated | Delay locked loop |
| WO2016083492A3 (en) * | 2014-11-26 | 2016-07-28 | Maritime Radar Systems Limited | A system for monitoring a maritime environment |
| CN104459636A (en) * | 2014-12-11 | 2015-03-25 | 南京长江电子信息产业集团有限公司 | Multi-radar antenna coordination control method |
| CN104569981A (en) * | 2015-01-28 | 2015-04-29 | 中国科学院大气物理研究所 | Synergy self-adaption observing method |
| CN104730524A (en) * | 2015-03-11 | 2015-06-24 | 马舒庆 | Array weather radar detection system and method |
| CN106211351A (en) * | 2016-07-22 | 2016-12-07 | 中国船舶重工集团公司第七二四研究所 | A kind of radar cooperative nodes is with meeting cut-in method |
| CN106383350A (en) * | 2016-09-30 | 2017-02-08 | 贵州省威宁彝族回族苗族自治县气象局 | Weather radar remote command operation control system and control method thereof |
| CN107064937A (en) * | 2017-06-07 | 2017-08-18 | 孝感市青谷信息科技有限公司 | A kind of measuring method of Dual-linear polarization radar system and strong rain |
| CN107450076A (en) * | 2017-07-19 | 2017-12-08 | 清华大学 | The collaboration networking measuring method and device of cloud detection radar |
Non-Patent Citations (2)
| Title |
|---|
| Distributed Collaborative Adaptive Sensing (DCAS) for Improved Detection;David J. Mclaughlin ,et al;《Citeseer》;20051231;p1-7 * |
| 网络化天气雷达协同自适应观测技术的实现`;李思腾等;《气象科技》;20160831;第517-527页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108051816A (en) | 2018-05-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108051816B (en) | Array weather radar collaborative scanning system and method | |
| CN104730524B (en) | Array weather radar detection system and method | |
| CN103682677B (en) | A kind of ship load radar conformal thinned array antenna and signal processing method thereof | |
| CN109738894B (en) | High squint multi-angle imaging method for large-field-of-view synthetic aperture radar | |
| CN111142099B (en) | Method for solving problem of tracking over-top blind target capturing of spherical phased array antenna | |
| CN106338728A (en) | Radar system and control method thereof | |
| CN103869309B (en) | Orientation rotation phased-array radar targeted surveillance and aerological sounding compatibility method and system | |
| CN107741587A (en) | A kind of meteorological detection method and system of dimensional wind | |
| CN113030946B (en) | Secondary radar detection method, device, equipment, system, medium and program product | |
| CN105137432B (en) | Ground synthetic aperture radar three-dimensional imaging method based on orthogonal image registration | |
| EP3460505A1 (en) | Weather radar device | |
| CN117111117A (en) | Multi-target tracking measurement and control method for full airspace dome phased array antenna | |
| US10690768B2 (en) | Synthetic-aperture interferometric radar with an antenna sliding along a rotating arm | |
| CN111430912B (en) | Control system and method for phased array antenna | |
| Barkhatov et al. | Toward 3D passive radar exploiting DVB-T2 transmitters of opportunity | |
| CN111090094B (en) | Method and system for measuring dual-beam angle of pulse Doppler radar and storage medium | |
| Sutor et al. | Sector imaging radar for enhanced vision (SIREV): Theory and applications | |
| JP5443867B2 (en) | Weather radar apparatus and radar signal processing method | |
| Peng et al. | Preparatory study for constructing FAST, the world's largest single dish | |
| CN110261854B (en) | Wide-area SAR imaging method suitable for slow platform | |
| CN1304852C (en) | Double line range quasi gaze mobile detection method | |
| CN109613525A (en) | The quick full airspace alarm method and system of the one-dimensional MIMO radar of one-dimensional rotation | |
| Qian et al. | An antenna beam control method of spaceborne multi-mode imaging SAR based on real-time computing framework | |
| WO2023013462A1 (en) | Position information deriving system | |
| CN116449355A (en) | Radar terrain matching scanning method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |