WO2016167054A1 - Système radar - Google Patents

Système radar Download PDF

Info

Publication number
WO2016167054A1
WO2016167054A1 PCT/JP2016/057282 JP2016057282W WO2016167054A1 WO 2016167054 A1 WO2016167054 A1 WO 2016167054A1 JP 2016057282 W JP2016057282 W JP 2016057282W WO 2016167054 A1 WO2016167054 A1 WO 2016167054A1
Authority
WO
WIPO (PCT)
Prior art keywords
wind speed
radar system
speed vector
reliability
radar
Prior art date
Application number
PCT/JP2016/057282
Other languages
English (en)
Japanese (ja)
Inventor
昌裕 箕輪
Original Assignee
古野電気株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 古野電気株式会社 filed Critical 古野電気株式会社
Priority to JP2017512232A priority Critical patent/JP6435040B2/ja
Publication of WO2016167054A1 publication Critical patent/WO2016167054A1/fr

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
    • 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
    • G01S7/04—Display arrangements
    • G01S7/06—Cathode-ray tube displays or other two dimensional or three-dimensional displays
    • 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
    • G01W—METEOROLOGY
    • G01W1/00—Meteorology
    • 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

Definitions

  • the present invention relates to a radar system that calculates a wind direction and a wind speed and displays the calculated wind direction and a wind speed on a display.
  • Non-Patent Document 1 a display method as disclosed in Non-Patent Document 1 is known as a method for displaying information on wind direction and wind speed at each point in a predetermined area.
  • an arrow is displayed at each point in the Kinki region.
  • the direction of the arrow indicates the direction of the wind (wind direction), and the color of each arrow corresponds to the speed of the wind (wind speed).
  • the user can know the wind direction and the wind speed at each point in the Kinki region.
  • the present invention is for solving the above-described problems, and an object of the present invention is to provide a radar system capable of displaying the reliability of information on the wind direction and wind speed displayed on the display unit on the display unit.
  • a radar system is based on a received signal generated from a reflected wave of a transmission wave transmitted from a transmission unit, and a wind speed vector at each point and
  • a radar system comprising a wind speed vector calculation unit for calculating a wind speed vector distribution which is the distribution, and a display for displaying the wind speed vector distribution, wherein the display also has reliability of the wind speed vector. Is displayed.
  • the radar system includes at least two radar devices each having the transmission unit, and the transmission units are arranged at different positions, and the wind speed vector calculation unit includes: The wind speed vector is calculated based on a reception signal generated from the reflected wave received by the radar device.
  • the radar system is a wind speed vector reliability distribution which is a distribution of the reliability of the wind speed vector at each point, which is determined based on a position where the at least two radar devices are arranged. Is further provided.
  • the wind speed vector reliability distribution is superimposed on the wind speed vector distribution and displayed on the display.
  • the radar system calculates the wind speed vector using a dual Doppler method.
  • the radar system includes at least three radar devices each having the transmission unit, and the transmission units are arranged at different positions, and the wind speed is measured using a triple Doppler method. Calculate the vector.
  • the radar system includes one radar device having the transmission unit, and the wind speed vector calculation unit is a reception generated from a reflected wave of a transmission wave transmitted from the transmission unit. Based on the signal, the wind speed vector at each point is calculated.
  • the radar system further includes a reliability calculation unit that calculates the reliability for each wind speed vector at each point, and the display unit includes the reliability corresponding to the wind speed vector. The reliability is displayed.
  • the wind speed vector calculation unit calculates the wind speed vector using a simplified VVP method.
  • the present invention it is possible to provide a radar system capable of calculating the reliability of the information on the wind direction and wind speed displayed on the display.
  • FIG. 1 is a block diagram of a weather radar system according to an embodiment of the present invention. It is a figure which shows an example of the position where two radar apparatuses shown in FIG. 1 are arrange
  • the present invention can be widely applied as a weather radar system that calculates a wind direction and a wind speed and displays the calculated wind direction and wind speed on a display.
  • FIG. 1 is a block diagram of a weather radar system 1 (hereinafter simply referred to as a radar system 1) according to an embodiment of the present invention.
  • FIG. 2 is a diagram illustrating an example of a position where the two radar apparatuses 10 and 20 illustrated in FIG. 1 are arranged.
  • the radar system 1 according to the present embodiment is configured to calculate the horizontal wind direction and wind speed at each point in a predetermined area using two radar devices 10 and 20 arranged at positions separated from each other. Yes.
  • the Doppler is calculated based on the difference between the frequency of the transmission wave and the frequency of the reflected wave that returns after being reflected by precipitation particles (rain, snow, hail, hail) in the atmosphere. Using the speed, the direction and magnitude of the wind speed at each point (that is, the wind speed vector V) is calculated. That is, in the radar system 1, the wind speed vector V at the point where the Doppler speed is observed is calculated.
  • the radar system 1 includes two radar devices 10, 20, a wind speed vector calculation unit 2, a display image generation unit 3, and a display 4.
  • Each radar device 10, 20 includes antennas 11, 21, circulators 12, 22, transmission waveform generators 13, 23, amplifiers 14, 24, transmitters 15, 25, receivers 16, 26, Band pass filters 17 and 27, amplification units 18 and 28, and signal processing units 19 and 29 are provided.
  • the radar apparatuses 10 and 20 have the same configuration except that the installation positions are different. Therefore, only the configuration of the radar apparatus 10 will be described below, and the description of the configuration of the radar apparatus 20 will be omitted.
  • the antenna 11 is provided as a wave transmission unit that transmits an electromagnetic wave as a transmission wave, and is also provided as a wave reception unit that receives a reflected wave of the transmission wave.
  • a transmission signal output from the transmitter 15 is input to the antenna 11 via the circulator 12.
  • a transmission wave generated from the transmission signal is transmitted from the antenna 11.
  • the antenna 11 outputs a reception signal obtained from the received reflected wave to the receiver 16 via the circulator 12.
  • the circulator 12 switches to a connection in which a transmission signal is transmitted from the transmitter 15 to the antenna 11 during transmission. In addition, the circulator 12 switches to a connection in which a reception signal obtained from a reception wave received by the antenna 11 is sent from the antenna 11 to the receiver 16 at the time of reception.
  • the transmission waveform generation unit 13 generates a transmission signal having a waveform that is the basis of the transmission wave transmitted from the antenna 11.
  • the transmission signal generated by the transmission waveform generation unit 13 is amplified by the amplification unit 14 and then output to the antenna 11 via the transmitter 15 and the circulator 12.
  • the receiver 16 receives the received signal obtained from the received wave received by the antenna 11 via the circulator 12.
  • the reception signal received by the receiver 16 is subjected to removal of unnecessary signals such as noise by the band-pass filter 17, amplified by the amplification unit 18, and then output to the signal processing unit 19.
  • FIG. 3 is a schematic diagram showing wind speed vectors Vp 10 and Vp 20 at a certain point p calculated by the signal processing units 19 and 29.
  • the wind speed vectors (wind direction and wind speed) that can be calculated by the signal processing unit 19 include the radar device 10 provided with the signal processing unit 19 among the wind speed vectors Vp at the target point P, and the target. Only the component Vp 10 in the direction d 10 along the straight line connecting the point P.
  • the wind speed vector that can be calculated by the signal processing unit 29 includes the radar device 20 provided with the signal processing unit 29 among the wind speed vectors Vp at the target point P, and the target point P where the wind direction and the wind speed are calculated. Only the component Vp 20 in the direction d 20 along the straight line connecting.
  • the radar apparatus 10 and the radar apparatus 20 are arranged at different positions with respect to each other, the wind direction that can be calculated by the signal processing unit 19 and the wind direction that can be calculated by the signal processing unit 29. The direction is different.
  • the wind speed vector calculation unit 2 is based on the wind speed vector Vp 10 calculated by the signal processing unit 19 of the radar device 10 and the wind speed vector Vp 20 calculated by the signal processing unit 29 of the radar device 20.
  • the wind speed vector Vp at the target point P is calculated.
  • the wind speed vector calculation unit 2 calculates the wind speed vector Vp of the target point P by combining the vector Vp 10 and the vector Vp 20 .
  • the method for calculating the wind speed vector Vp described here is a method called a dual Doppler method.
  • FIG. 4 is a diagram showing the wind speed vector distribution VM calculated by the wind speed vector calculation unit 2.
  • the wind speed vector calculation unit 2 generates the wind speed vector distribution VM, which is the distribution of the wind speed vector V at each point, by performing the above-described vector synthesis process for each point where the Doppler velocity is observed.
  • the direction of the wind speed corresponds to the direction of the arrow shown in FIG. 4, and the magnitude of the wind speed corresponds to the length of the arrow shown in FIG.
  • FIG. 5 is a diagram illustrating an example of the error rate distribution EM (reliability distribution) stored in the error rate distribution storage unit 5 (reliability distribution storage unit) of the display image generation unit 3.
  • FIG. 6 is a diagram showing an image generated by the display image generating unit 3 and displayed on the display device 4.
  • the wind speed vector V at each point is calculated using the dual Doppler method described above with reference to FIG.
  • the magnitude of the wind speed error at that point is determined by the position of the wind speed calculation target point with respect to the two radar devices 10 and 20. Referring to FIG. 5, in FIG. 5, a region Za having a high dot density has a small velocity error rate, and a region Zc having a low dot density has a large velocity error rate. That is, the speed vector at the point included in the region Za has high reliability, and the speed vector at the point included in the region Zc has low reliability.
  • the speed error rate of the speed vector at the point included in the region Za is less than 30%, and the speed error rate of the speed vector at the point included in the region Zb is 30% or more and less than 50%.
  • the speed error rate of the speed vector at the points included in the region Zc is 50% or more.
  • the distribution of speed error rates determined by the positions where the two radar devices 10 and 20 installed at different positions are installed as the error rate distribution EM as an error rate distribution storage unit. 5 is stored. Note that the speed error rate ranges (30% to less than 50%, etc.) of the points included in each of the regions Za, Zb, and Zc illustrated here are merely examples, and other ranges may be used.
  • the display image generation unit 3 is an image in which the wind speed vector distribution VM generated by the wind speed vector calculation unit 2 and the error rate distribution EM stored in the error rate distribution storage unit 5 are superimposed. Is generated. Specifically, the display image generation unit 3 causes the positions where the radar apparatuses 10 and 20 are installed in the wind speed vector distribution VM and the positions of the two radar apparatuses 10 and 20 in the error rate distribution EM match. In addition, an image in which the wind speed vector distribution VM and the error rate distribution EM are superimposed is generated. The display 4 displays the image. Thereby, the user can grasp
  • the point P1 is included in the region Za where the error rate of the wind speed in the error rate distribution EM is within 30%, the error of the wind speed at the point P1 is within 30%. Can be guessed. Specifically, if the wind speed at the point P1 is 10 m / s, it can be estimated that the wind speed at the point P1 is in the range of 7 to 13 m / s. On the other hand, since the point P2 is included in the region Zc where the error rate of the wind speed in the error rate distribution EM is 50% or more, it can be estimated that the error of the wind speed at the point P2 is 50% or more.
  • the error rate of the wind speed vector V at each point where the Doppler velocity is observed is the reliability of the wind speed vector V calculated corresponding to each point. Displayed on the display 4. Thereby, since the user can know the degree of accuracy of the wind speed vector V calculated corresponding to each point (that is, the reliability of the wind speed vector V), the wind speed vector V at each point can be more accurately determined. I can grasp it.
  • the radar system 1 it is possible to provide a radar system that can display the error rate (reliability) of the wind speed vector V displayed on the display 4 on the display 4.
  • the wind speed vector V is calculated by the two radar devices 10 and 20 arranged at different positions.
  • the wind speed vector V can be calculated using the Doppler speed, and therefore the wind speed vector V at each point can be appropriately calculated.
  • the error rate distribution EM which is a distribution of the error rate of the wind speed at each point, determined based on the position where the two radar devices are arranged is stored. That is, according to the radar system 1, it is not necessary to calculate the error rate of the wind speed for each of the wind speed vectors V calculated at each point. Therefore, according to the radar system 1, the calculation load for calculating the error rate of the wind speed at each point can be reduced.
  • the wind speed vector distribution VM and the error rate distribution EM are displayed in an overlapping manner. Thereby, the user can easily estimate how much the wind speed vector V at each point actually falls within the range.
  • the wind speed vector V at each point is calculated based on the so-called dual Doppler method, the wind speed vector V at each point can be appropriately calculated.
  • FIG. 7 is an enlarged view of a part of the display image displayed on the display of the radar system according to the modification.
  • the error rate distribution EM of the wind speed is displayed as the reliability.
  • the present invention is not limited to this, and other reliability may be displayed.
  • the error rate of the wind speed at each point is ranked according to the magnitude (for example, A to D), and the alphabets A to D are May be displayed in the vicinity of the arrow of the wind speed vector V displayed in FIG.
  • the wind speed vector distribution VM and the error rate distribution EM are displayed so as to overlap each other.
  • the present invention is not limited thereto, and the wind speed vector distribution VM and the error rate distribution EM are displayed on the display 4. May be displayed separately.
  • the configuration may be such that the wind speed error rate of the speed vector at the point is displayed.
  • the wind direction and the wind speed at each point are calculated using the two radar devices 10 and 20.
  • the present invention is not limited to this, and each point is determined by one or three or more radar devices.
  • the wind direction and the wind speed may be calculated.
  • FIG. 8 is a block diagram showing a configuration of a radar system 1a according to a modification.
  • the wind direction and the wind speed at each point are calculated based on the so-called dual Doppler method using the two radar devices 10 and 20, but the present invention is not limited to this.
  • the wind direction and wind speed at each point are calculated based on a so-called simplified VVP (Velocity Volume Processing) method.
  • the simplified VVP method described above is a method obtained by simplifying the VVP method, and is a method capable of calculating the wind direction and the wind speed in a local region (small region, hereinafter, this local region is referred to as a cell). is there.
  • This simplified VVP method is also called a local VAD method. Since the simplified VVP method is a known technique, its detailed description is omitted.
  • the radar system 1a includes a single radar device 10a, a wind speed vector calculation unit 2a, a display image generation unit 3a, and a display 4.
  • the configuration of one radar apparatus 10a is the same as the configuration of each of the radar apparatuses 10 and 20 of the above-described embodiment.
  • the wind speed vector calculation unit 2a and the display image generation unit 3a are different in operation from the wind speed vector calculation unit 2a and the display image generation unit 3a of the above embodiment.
  • a different part from the said embodiment is mainly demonstrated, and description is abbreviate
  • the wind speed vector calculation unit 2a calculates the wind direction and the wind speed of each cell using the Doppler velocities at each of a plurality of points included in each cell, measured by the radar apparatus 10a. Specifically, the wind speed vector calculation unit 2a calculates the Doppler speed Vr at each of a plurality of points in the cell and the horizontal wind speeds u and v (where u is the speed in the east-west direction and v is the speed in the north-south direction). In the meantime, the wind direction and the wind speed of each cell are calculated by using the following equation.
  • ⁇ is an elevation angle
  • ⁇ is an azimuth angle
  • the wind speed vector calculation unit 2a uses the azimuth angle ⁇ i (i is a natural number, and is assigned to each point included in the cell) at a predetermined interval for each elevation angle. to calculate the measured Doppler velocity Vr i.
  • the wind velocity vector calculation unit 2a for example by using a least square method or the like, extracts a predetermined condition is satisfied Vr i of Vr i, coefficients of equation (1) as extracted Vr i is most fit u , V are determined. Thereby, the wind direction and the wind speed in each cell are calculated.
  • the predetermined condition is satisfied Vr i, a Vr i coefficients u, v are spaced wide relative to the formula (1) determined becomes less than a predetermined threshold value. Further, in the following, a sample having a predetermined condition is satisfied Vr i (extracted Vr i as described above), referred to as the reliability calculation target sample.
  • the wind speed vector calculation unit 2 a further includes a reliability calculation unit 6.
  • the reliability calculation unit 6 calculates the reliability of the wind direction and the wind speed calculated for each cell. More specifically, the reliability calculation unit 6 calculates a plurality of reliability (first to fourth reliability) as one of values 1 to 4, and integrates the plurality of reliability to obtain a total reliability. Is calculated as any one of A to D. Each reliability (first to fourth reliability) indicates that the data is highly reliable as the value increases. In addition, the total reliability indicates that the data is highly reliable as it goes from D to A.
  • Reliability calculation unit 6 in order to calculate the first reliability, the number na of the point where the Doppler velocity is calculated, the coefficient described above u, Vr i used to determine v is calculated in each cell
  • the first reliability is calculated based on the number nb of the determined points (that is, the number of reliability calculation target samples). Specifically, the reliability calculation unit 6 determines the first reliability according to the numerical value N1 obtained by dividing nb by na.
  • the reliability calculation unit 6 sets the first reliability to 1 when N1 ⁇ 0.25, sets the first reliability to 2 when 0.25 ⁇ N1 ⁇ 0.5, and sets 0
  • the first reliability is set to 3 when .5 ⁇ N1 ⁇ 0.75, and the first reliability is set to 4 when N1 ⁇ 0.75.
  • the reliability calculation unit 6 calculates the second reliability based on the absolute value of the wind speed in each cell and the error of the wind speed in each cell in order to calculate the second reliability. Specifically, the reliability calculation unit 6 determines the second reliability according to a numerical value N2 calculated for each cell, which is a value N2 obtained by dividing the error of the wind speed by the absolute value of the wind speed. For example, as an example, the reliability calculation unit 6 sets the second reliability to 1 when N2 ⁇ 0.5, sets the second reliability to 2 when 0.4 ⁇ N2 ⁇ 0.5, and sets 0 The second reliability is set to 3 when 3 ⁇ N2 ⁇ 0.4, and the second reliability is set to 4 when N2 ⁇ 0.3.
  • the reliability calculation unit 6 calculates the third reliability based on the absolute value of the wind direction error in each cell in order to calculate the third reliability. For example, as an example, the reliability calculation unit 6 sets the third reliability to 1 when the absolute value N3 of the wind direction error is 45 degrees or more, and the third reliability when N3 is 30 degrees or more and less than 45 degrees. Is set to 2, the third reliability is set to 3 when N3 is 12 degrees or more and less than 30 degrees, and the third reliability is set to 4 when N3 is less than 12 degrees.
  • the reliability calculation unit 6 calculates the fourth reliability based on an angle formed by a straight line connecting the radar position and the center point of each cell and the wind direction calculated corresponding to each cell.
  • the fourth reliability is calculated. For example, as an example, the reliability calculation unit 6 sets the fourth reliability to 1 when the angle N4 is 87.5 degrees or more and 90 degrees or less, and when N4 is 85 degrees or more and less than 87.5 degrees.
  • the fourth reliability is set to 2, the fourth reliability is set to 3 when N4 is 80 degrees or more and less than 85 degrees, and the fourth reliability is set to 4 when N4 is less than 80 degrees.
  • the reliability calculation part 6 calculates a total reliability based on the value of the 4th reliability from the 1st reliability calculated as mentioned above. Specifically, the reliability calculation unit 6 sets the total reliability to A when the total of the first reliability to the fourth reliability is 14 to 16, and sets the total reliability when the total is 10 to 13. When the sum is 6 to 9, the total reliability is C. When the sum is 4 or 5, the total reliability is D. This total reliability is calculated for each wind velocity vector V calculated corresponding to each cell.
  • FIG. 7 is an enlarged view of a part of the display screen displayed on the display 4 of the radar system 1a according to the present modification.
  • the total reliability calculated corresponding to each point is displayed in the vicinity of the wind velocity vector V at each point as one of alphabets A, B, C, and D.
  • the user can judge that the direction and the magnitude of the wind speed vector V to which the alphabet A is attached are highly reliable.
  • the user can determine that the direction and the magnitude of the wind speed vector V to which the alphabet D is attached are low in reliability.
  • the wind speed vector V can be calculated by one radar apparatus 10a. Therefore, the configuration of the radar system 1a compared to the case of the radar system 1 according to the above-described embodiment. Can be simplified.
  • the reliability (total reliability) is calculated for each wind speed vector V at each point, and the total reliability is displayed near the wind speed vector V at each point. Thereby, the user can grasp
  • the wind speed vector V is calculated by the simplified VVP method, so that the wind speed vector V can be appropriately calculated.
  • the total reliability obtained by comprehensively evaluating a plurality of reliability levels (first to fourth reliability levels) is calculated, and this total reliability level corresponds to the velocity vector at each point. Is displayed. Thereby, the reliability having higher accuracy can be calculated.
  • the wind speed vector V at each point is calculated by the simplified VVP method. May be calculated.
  • the wind speed vector V may be calculated using the VVP method.
  • FIG. 9 is an enlarged view showing a part of the display screen of the radar system according to the modification.
  • the circles drawn corresponding to the respective wind speed vectors V according to the magnitude of the value N1 calculated by the reliability calculation unit 6 of the modification described with reference to FIG. The size of the diameter is determined.
  • the user can determine that the reliability of the wind speed vector V marked with the circle is high if the diameter of the circle is large, while the wind speed marked with the circle is small if the diameter of the circle is small. It can be determined that the reliability of the vector V is low.
  • FIG. 10 is an enlarged view of a part of the display screen of the radar system according to the modification.
  • the direction and magnitude of the wind speed that can be taken by each speed vector according to the values of N2 and N3 calculated by the reliability calculation unit 6 of the modification described with reference to FIG. Display as an error bar.
  • the user can grasp
  • FIG. 11 is an enlarged view of a part of the display screen of the radar system according to the modification.
  • each wind speed vector V is displayed as a solid line or a dotted line based on the value of N4 calculated by the reliability calculation unit 6 of the modification described with reference to FIG.
  • the wind speed vector V having an N4 value of 87.5 degrees or more and 90 degrees or less is displayed by a dotted line
  • the wind speed vector V having an N4 value of less than 87.5 degrees is a solid line. Is displayed.
  • the user can determine that the magnitude and direction of the wind speed vector V displayed by the solid line is high in reliability, and determines that the reliability of the magnitude and direction of the wind speed vector V displayed in the dotted line is low. it can.
  • FIG. 12 is an enlarged view of a part of the display screen of the radar system according to the modification. As shown in FIG. 12, as a method of displaying the reliability displayed on the display screen, the circle described with reference to FIG. 9, the error bar described with reference to FIG. 10, and the wind speed described with reference to FIG. You may combine with the dotted line display of the vector V.
  • FIG. 12 as a method of displaying the reliability displayed on the display screen, the circle described with reference to FIG. 9, the error bar described with reference to FIG. 10, and the wind speed described with reference to FIG. You may combine with the dotted line display of the vector V.
  • FIG. 13 is a block diagram of a radar system 1b according to a modification.
  • the wind direction and the wind speed at each point are calculated based on the so-called dual Doppler method using the two radar devices 10 and 20, but the present invention is not limited to this.
  • the wind direction and the wind speed at each point are calculated based on the so-called triple Doppler method.
  • the radar system 1b includes another radar device 30 in addition to the two radar devices 10 and 20 included in the radar system 1b according to the embodiment. That is, the radar system 1b includes three radar devices 10, 20, and 30. As with the other radar devices 10 and 20, the radar device 30 includes an antenna 31, a circulator 32, a transmission waveform generation unit 33, an amplification unit 34, a transmitter 35, a receiver 36, and a bandpass filter 37. , An amplification unit 38 and a signal processing unit 39 are provided. Since the configuration and operation of these components included in the radar device 30 are the same as the components included in the radar devices 10 and 20, description thereof is omitted.
  • the wind direction and the wind speed in the horizontal direction and the vertical direction are calculated.
  • the radar system 1b not only the wind direction and wind speed in the horizontal direction but also the wind direction and wind speed in the vertical direction can be calculated.
  • at least one radar device for example, the radar device 30
  • the radar device 30 is installed at a height position different from that of other radar devices. Thereby, it becomes possible to calculate the wind direction and the wind speed in the vertical direction as described above. Since the triple Doppler method is a known technique, a detailed description thereof is omitted.
  • the error rate of the wind speed vector at each point is displayed on the display unit 4 as the reliability of the wind speed vector calculated corresponding to each point, as in the case of the above embodiment.
  • the wind speed vector V of each point can be grasped

Abstract

Le problème décrit par la présente invention est de fournir un système radar qui est susceptible d'afficher, sur un dispositif d'affichage, la fiabilité d'informations relatives à la direction du vent et à la vitesse du vent, qui sont affichées sur le dispositif d'affichage. La solution de l'invention porte sur un système radar (1) équipé des éléments suivants : une unité de calcul de vecteur de vitesse du vent (2) qui, sur la base d'un signal de réception généré à partir des ondes d'émission réfléchies qui sont émises par des unités d'émission d'ondes (11, 21), calcule le vecteur de la vitesse du vent au niveau de chacun de multiples points et la distribution du vecteur de la vitesse du vent associée ; et un dispositif d'affichage (4) sur lequel est affichée la distribution du vecteur de la vitesse du vent. Le dispositif d'affichage (4) de ce système radar (1) affiche également la fiabilité du vecteur de la vitesse du vent.
PCT/JP2016/057282 2015-04-16 2016-03-09 Système radar WO2016167054A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2017512232A JP6435040B2 (ja) 2015-04-16 2016-03-09 レーダシステム

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015084191 2015-04-16
JP2015-084191 2015-04-16

Publications (1)

Publication Number Publication Date
WO2016167054A1 true WO2016167054A1 (fr) 2016-10-20

Family

ID=57126566

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2016/057282 WO2016167054A1 (fr) 2015-04-16 2016-03-09 Système radar

Country Status (2)

Country Link
JP (1) JP6435040B2 (fr)
WO (1) WO2016167054A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7431377B1 (ja) 2023-08-29 2024-02-14 株式会社日立パワーソリューションズ 風況観測機器配置支援装置および風況観測機器配置支援方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020126039A1 (en) * 2001-01-10 2002-09-12 Dalton Shelly D. Multi-stage processing for efficient and accurate spectral moment estimation
JP2004085472A (ja) * 2002-08-28 2004-03-18 Mitsubishi Electric Corp レーダ信号処理装置及びレーダ信号処理方法
JP2007170859A (ja) * 2005-12-19 2007-07-05 Mitsubishi Electric Corp レーダ装置
JP2010217077A (ja) * 2009-03-18 2010-09-30 Japan Aerospace Exploration Agency 遠隔気流の警報表示方法及びそのシステム

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020126039A1 (en) * 2001-01-10 2002-09-12 Dalton Shelly D. Multi-stage processing for efficient and accurate spectral moment estimation
JP2004085472A (ja) * 2002-08-28 2004-03-18 Mitsubishi Electric Corp レーダ信号処理装置及びレーダ信号処理方法
JP2007170859A (ja) * 2005-12-19 2007-07-05 Mitsubishi Electric Corp レーダ装置
JP2010217077A (ja) * 2009-03-18 2010-09-30 Japan Aerospace Exploration Agency 遠隔気流の警報表示方法及びそのシステム

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7431377B1 (ja) 2023-08-29 2024-02-14 株式会社日立パワーソリューションズ 風況観測機器配置支援装置および風況観測機器配置支援方法

Also Published As

Publication number Publication date
JPWO2016167054A1 (ja) 2018-02-08
JP6435040B2 (ja) 2018-12-05

Similar Documents

Publication Publication Date Title
US8068050B2 (en) Methods and systems for detection of hazard to aviation due to convective weather
EP3012656B1 (fr) Dispositif d'élimination du fouillis et appareil radar comprenant ce dispositif
US11604274B2 (en) Apparatus and method for composition for dual-polarization weather radar observation data using earth spherical coordinate system
JP2017003416A (ja) 降水予測システム
JP6689396B2 (ja) 気象予測装置、気象予測方法、およびプログラム
JP2011053028A (ja) ドップラーレーダ装置及びドップラー速度算出方法
EP2990820B1 (fr) Dispositif d'élimination du fouillis et appareil radar comprenant ce dispositif
CN109613503A (zh) 雷达回波信号的标校方法和装置
JP6435040B2 (ja) レーダシステム
EP3006956A1 (fr) Dispositif, procédé et programme d'estimation de courant de marée de surface et dispositif radar
US7942821B2 (en) Doppler velocity detection device and ultrasonographic device using the same
CN105572637B (zh) 一种远场声源定位系统和方法
Friedrich et al. Influence of ground clutter contamination on polarimetric radar parameters
CN108061666A (zh) 一种输电塔损伤识别方法
JP6154219B2 (ja) エコー信号処理装置、波浪レーダ装置、エコー信号処理方法、及びエコー信号処理プログラム
CN106320396B (zh) 建筑物实心桩的低应变双速度信号平均检测方法
KR101354522B1 (ko) 변분법과 초기추정법을 이용한 고분해능 레이더 바람장 산출방법
JP5398424B2 (ja) 気象レーダシステムとその降水強度算出方法及びプログラム
RU2568232C2 (ru) Комплекс мониторинга напряженно-деформированного состояния магистральных трубопроводов
US20070255534A1 (en) Mass flow meter having an oscillation sensor and method for eliminating noise signals from the measurement signal
CN103148882A (zh) 一种物理参量测量值的复合指示方法
JP6689961B2 (ja) 信号処理装置、レーダ装置、および、信号処理方法
JP5491788B2 (ja) 気象レーダシステムとその降水強度算出方法
JP2008051541A (ja) 台風中心検出装置
CN104965103A (zh) 一种基于声参量阵的风速测量方法

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16779846

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2017512232

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 16779846

Country of ref document: EP

Kind code of ref document: A1