JPH077055B2 - Data synthesizer for weather radar - Google Patents
Data synthesizer for weather radarInfo
- Publication number
- JPH077055B2 JPH077055B2 JP63006117A JP611788A JPH077055B2 JP H077055 B2 JPH077055 B2 JP H077055B2 JP 63006117 A JP63006117 A JP 63006117A JP 611788 A JP611788 A JP 611788A JP H077055 B2 JPH077055 B2 JP H077055B2
- Authority
- JP
- Japan
- Prior art keywords
- data
- radar
- radars
- mesh
- weather radar
- 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.)
- Expired - Lifetime
Links
Classifications
-
- 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
Description
【発明の詳細な説明】 〔産業上の利用分野〕 この発明は、気象レーダによって捕捉した降水エコーデ
ータをレーダの見透し，性能等によって生ずるレベル差
異を極力少なくかつ矛盾なく合成する気象用レーダのデ
ータ合成装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention is a meteorological radar that synthesizes precipitation echo data captured by a meteorological radar through a perspective of the radar and synthesizes level differences caused by performance or the like as little as possible and without contradiction. Data synthesizer.
〔従来の技術〕 第３図は気象レーダによる降水エコー測定において、複
数台のレーダによって測定するシステムの概念図を示
す。図において1,2はそれぞれの異なる場所に置かれた
レーダ、3,4は各々のレーダによる観測範囲、5,6は各々
のレーダによる観測可能な観測距離、７は山岳等のレー
ダ見通しを阻害する遮蔽物、８はレーダ１のブランクエ
リアを示す。第３図に示すように例えば２台のレーダに
よって降水域の測定を行なうとき、各々のレーダの観測
範囲はレーダを中心とした距離Ｒの円となる。そしてレ
ーダ１の観測範囲内に記号７で示すような山岳等の遮蔽
物があると、記号８で示すようなブランクエリア（測定
不能領域）が生ずる。このため従来はこの例に示すよう
に２台のレーダを用いて測定をし、測定不能領域はレー
ダ２の出力信号を用いていた。[Prior Art] FIG. 3 is a conceptual diagram of a system in which precipitation echo measurement by a weather radar is performed by a plurality of radars. In the figure, 1 and 2 are radars placed in different places, 3 and 4 are the observation range by each radar, 5 and 6 are the observable distances by each radar, and 7 is the obstruction of the radar line of sight such as mountains. A shielding object, 8 indicates a blank area of the radar 1. As shown in FIG. 3, when the precipitation area is measured by, for example, two radars, the observation range of each radar is a circle with a distance R centered on the radar. If there is an obstacle such as a mountain as shown by symbol 7 in the observation range of the radar 1, a blank area (unmeasurable region) as shown by symbol 8 is generated. Therefore, conventionally, as shown in this example, two radars are used for measurement, and the output signal of the radar 2 is used for the unmeasurable region.
〔発明が解決しようとする課題〕 しかしながらそれぞれのレーダはその測定範囲を固定的
に分担していたので、性能に差異があるときで分割範囲
のつなぎめに降水データが有る場合、その定量値表現に
不自然さが生ずるという問題があった。[Problems to be Solved by the Invention] However, since the respective radars fixedly share the measurement range, when there is a difference in performance and there is precipitation data at the joint of the divided ranges, its quantitative value expression There was a problem that unnaturalness occurs.
この発明は、データ合成時の不自然さをなくし複数台の
レーダデータの合成を行なうことを目的とする。It is an object of the present invention to eliminate the unnaturalness when combining data and to combine a plurality of radar data.
このような問題を解決するためにこの発明は、データの
合成をするとき、より高いレベルのデータを選択して合
成するようにしたものである。In order to solve such a problem, the present invention is designed to select and combine higher level data when combining data.
レーダで捕捉されたレーダエコーは予め定められたメッ
シュ単位のデータ値として表現され、重複してカバーす
るエリヤ内のメッシュデータはその大小を判別し、大き
い方のデータを自動的に選択する。The radar echo captured by the radar is expressed as a data value in a predetermined mesh unit, and the mesh data in the area that overlaps and covers is discriminated from the size, and the larger data is automatically selected.
第１図はこの発明の一実施例を示す図であり、９はレー
ダ１のメシュデータ、10はレーダ２におけるレーダ１の
メッシュと同一アドレスを有するメッシュのデータを示
す。11はメッシュデータ9,10の大小判定を行なう比較回
路であり、各メッシュ毎にレーダ1,2の同一アドレスメ
ッシュにおけるデータの大小判定を行なうようになって
いる。判定されたデータは出力データ12として出力され
る。FIG. 1 is a diagram showing an embodiment of the present invention, in which 9 is mesh data of the radar 1 and 10 is data of a mesh having the same address as the mesh of the radar 1 in the radar 2. Reference numeral 11 is a comparison circuit for judging the size of the mesh data 9 and 10 and is adapted to judge the size of the data in the same address mesh of the radars 1 and 2 for each mesh. The determined data is output as the output data 12.
このように構成された装置において、２台のレーダ1,2
が観測する全ての範囲内のデータをメッシュ単位で表現
し、第１図の比較回路11に入力する。同一アドレスを有
するデータについてはその大小を判定し、結果が大きい
ものをそのアドレスとして出力する。アドレスが同一以
外のものは当然そのデータのみが出力される。In the device configured in this way, two radars 1, 2
The data within the entire range observed by is expressed in mesh units and input to the comparison circuit 11 in FIG. For data having the same address, the size of the data is determined, and the one with the larger result is output as the address. If the address is not the same, naturally only that data is output.
この結果第２図に示すように、レーダ１の観測範囲内に
ある山岳７によって生ずるレーダ１のブランクエリアは
レーダ２のデータによってカバーされ、２台のレーダで
予めエリア分けをして合成した場合よりも、より自然な
表現が可能となる。As a result, as shown in FIG. 2, when the blank area of the radar 1 caused by the mountain 7 within the observation range of the radar 1 is covered by the data of the radar 2, the areas are preliminarily divided by two radars and combined. A more natural expression is possible.
以上の実施例は２台のレーダについて説明しているが、
３台以上のレーダによりデータ合成すればより正確な降
水エコー域、降水量の把握が可能になる。また２台以上
のレーダで各々のレーダによるデータ収集高度を変えた
場合アンテナの仰角操作なしに高度による降水データの
強弱を同一平面画として把握できる。Although the above embodiments describe two radars,
By combining data from three or more radars, it becomes possible to more accurately understand the precipitation echo area and precipitation. Further, when the data collection altitude by each radar is changed by two or more radars, the intensity of precipitation data depending on the altitude can be grasped as the same plane without operating the elevation angle of the antenna.
以上説明したようにこの発明は、共通な地域を測定範囲
に含む２台以上のレーダ出力信号のうち共通な地域のデ
ータはそれぞれのレーダの出力データのうち大きい方の
データを選択して出力するようにしたので、複数台のレ
ーダを使用して収集したデータをレーダ相互間の特性の
差異にかかわらず合成できるという効果を有する。As described above, according to the present invention, the data of the common area of the two or more radar output signals including the common area in the measurement range is selected by outputting the larger one of the output data of the respective radars. As a result, there is an effect that data collected by using a plurality of radars can be combined regardless of the difference in characteristics between the radars.
第１図はこの発明の一実施例を示す図、第２図はこの発
明を適用した表示結果を示す図、第３図は従来の方法に
よる表示結果を示す図である。 1,2……レーダ、3,4……観測範囲、5,6……観測距離、
７……山岳、８……ブランクエリア。FIG. 1 is a diagram showing an embodiment of the present invention, FIG. 2 is a diagram showing a display result to which the present invention is applied, and FIG. 3 is a diagram showing a display result by a conventional method. 1,2 …… Radar, 3,4 …… Observation range, 5,6 …… Observation distance,
7 ... Mountains, 8 ... Blank area.
Claims (1)
する気象用レーダのデータ合成装置において、 共通な地域を測定範囲に含む２台以上のレーダ出力信号
のうち共通な地域のデータはそれぞれのレーダの出力デ
ータのうち大きい方のデータを選択して出力する選択回
路を有することを特徴とする気象用レーダのデータ合成
装置。1. A meteorological radar data synthesizer that performs quantitative measurement of meteorological data and synthesizes the meteorological data. A meteorological radar data synthesizing device having a selection circuit for selecting and outputting the larger one of the radar output data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63006117A JPH077055B2 (en) | 1988-01-13 | 1988-01-13 | Data synthesizer for weather radar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63006117A JPH077055B2 (en) | 1988-01-13 | 1988-01-13 | Data synthesizer for weather radar |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01182783A JPH01182783A (en) | 1989-07-20 |
| JPH077055B2 true JPH077055B2 (en) | 1995-01-30 |
Family
ID=11629563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63006117A Expired - Lifetime JPH077055B2 (en) | 1988-01-13 | 1988-01-13 | Data synthesizer for weather radar |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH077055B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3570360B2 (en) * | 2000-08-31 | 2004-09-29 | 三菱電機株式会社 | Wake turbulence detection system |
| JP2004325130A (en) * | 2003-04-22 | 2004-11-18 | Mitsubishi Electric Corp | Radar equipment |
| EP3255452A4 (en) * | 2015-02-02 | 2018-09-12 | Furuno Electric Co., Ltd. | Detection device and detection method |
| US10241203B2 (en) * | 2015-03-13 | 2019-03-26 | Honeywell International Inc. | Weather radar integrating system combining ground-based and aircraft-based weather radar data |
-
1988
- 1988-01-13 JP JP63006117A patent/JPH077055B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01182783A (en) | 1989-07-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |