JPH04235378A - Synthesizing processor of data of weather radar - Google Patents

Abstract

PURPOSE:To obtain a synthesizing processor of data of a weather radar which makes it possible to compensate effectively data attenuation near a radar site and to obtain a rain value or a rain intensity value of higher precision. CONSTITUTION:Data from a weather radar are received by a receiving function element 1 and the received data 11 is subjected to a synthesizing processing. On the occasion, data 13c on the vicinity of a radar site are replaced by data 13b from a radar of another radar site and the synthesizing processing is executed by a synthesizing function element 5. The synthesized data 13 thus obtained are distributed to a lower system by a data distributing function element 4.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a meteorological radar data synthesis processing apparatus for synthesizing reflected power intensity values, rainfall amount values, rainfall intensity values, etc. obtained by a weather radar.

0002

2. Description of the Related Art FIG. 3 is a block diagram schematically showing the functions of a conventional weather radar data synthesis processing apparatus. In the figure, (1) is a reception function unit that receives data from the weather radar, and (3) is the received data (
11), the low beam method (a synthesis method that preferentially uses data from sites with low radar beams at that point)
(4) is a data distribution function unit that distributes the combined data (14) to the lower system.

Next, the operation will be explained.

[0004] The data sent from each weather radar is
It is received by the reception function section (1). The received data (11) is filled with data from the radars of one radar site each. This received data (11
) is subjected to synthesis processing by the above-mentioned low beam method by the synthesis function section (3). In this example, the combined data (14) consists of two types of data: data from the radar at that site (14a) shown in the white part of the figure, and data from the radar at another site (14b) shown in the diagonal line. It consists of Here, the data (14a) from the radar at that site is used for the data near the radar site (the center of the data (14) indicated by the circle).

[0005] The combined data (14) is distributed by the data distribution function section (4) and used by each lower system according to its purpose.

[0006]

[Problem to be Solved by the Invention] Since the conventional weather radar data synthesis processing device is configured as described above, it is possible to compensate for data attenuation near the radar site, which is a drawback of such a non-coherent MTI method. Therefore, there was a problem in that accurate rainfall values or rainfall intensity values could not be obtained near the radar site.

[0007] This invention was made to solve the above-mentioned problems, and it is possible to effectively compensate for data attenuation near a radar site, and as a result, obtain a more accurate rainfall value or rainfall intensity value. The purpose of the present invention is to obtain a weather radar data synthesis processing device that can perform the following steps.

[0008]

[Means for Solving the Problems] A weather radar data synthesis processing device according to the present invention solves the drawbacks of the non-coherent MTI method by performing synthesis using data from other site radars with data near a radar site. This system compensates for data attenuation near a certain radar site, making it possible to obtain more accurate rainfall values or rainfall intensity values.

[0009]

[Operation] The weather radar data synthesis processing device according to the present invention has a function of performing synthesis processing, and instead of the conventional low beam method, data in the vicinity of a radar site is used preferentially using data from other sites. By performing synthesis using the beam method, among the combined data, data from other radar sites is used in the vicinity of the site, and a rainfall value or rainfall intensity value without data attenuation is output.

0010

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, parts corresponding to those in FIG. 3 are denoted by the same reference numerals, and explanations thereof will be omitted.

In FIG. 1, (5) is a synthesis method that uses the received data (11) preferentially using data from radars at other sites near the radar site and performs synthesis using the low beam method. This is a synthesis function unit as a data synthesis processing function unit that sends the subsequent data (13) to the data distribution function unit (4).

Next, the operation will be explained.

[0013] The data sent from each weather radar is
It is received by the reception function section (1). The received data (11) are each filled with data from one site's radar. This received data (11) is synthesized by a synthesis function section (5) using the low beam method, preferentially using data from radars at other sites in the vicinity of the radar site.

As a result, combined data (13) is generated, and in the example shown in this figure, data from the radar of that site (13a) shown in white and data from another site shown in diagonal lines are combined. It is composed of two types of data: data from the radar (13b). As for the data near the radar site (13c) (generally, the radar beam at that radar site is at a lower altitude), part of the data from the radar at another site (13b) is used. .

[0015] The combined data (13) is distributed by the data distribution function section (4) and used by each lower system according to its purpose.

In the above embodiment, the synthesis processing device is provided with a function of using data from radars at other sites as data near the radar site, but the present invention shown in FIG. Like the other embodiments, the conventional example (
Data (12) in which the data near the radar site (12a) is replaced with data from the radar at another site between the reception function unit (1) and the synthesis function unit (3) in Figure 3)
It is also possible to add a replacement function section (2) that obtains
The same effects as in the above embodiment are achieved.

In this case, in FIG. 2, the replacement function section (2) and the composition function section (3) constitute a data synthesis processing function section.

[0018]

[Effects of the Invention] As described above, according to the present invention, data attenuation in the vicinity of a radar site is compensated for by data from radars at other sites, so more accurate rainfall value or rainfall intensity value data can be obtained. There are benefits to be gained.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a weather radar data synthesis processing device according to an embodiment of the present invention.

FIG. 2 is a block diagram of a weather radar data synthesis processing device according to another embodiment of the present invention.

FIG. 3 is a block diagram of a conventional weather radar data synthesis processing device.

[Explanation of symbols]

1 Receiving function section 2 Replacement function section 3 Combination function section 4 Data distribution function section 5 Synthesis function section 11 Received data 12 Data in which data near the radar site is replaced with data from radar at another site 13 Radar site Nearby data is data from radars at other sites and data synthesized using the low beam method, 14
Data synthesized by the low beam method Note that in the figures, the same reference numerals indicate the same or corresponding parts.

Claims (1)

[Claims] [Claim 1] A reception function unit that receives data from a weather radar; and a combination processing of the data received by the reception function unit, and at that time, data in the vicinity of the radar site is combined with data from radars at other radar sites. A weather radar data synthesis processing device comprising a data synthesis processing function unit that performs replacement and synthesis processing, and a distribution function unit that distributes data obtained from the data synthesis processing function unit to a lower system.