JP2012007956A - Device and program for processing radar information - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow a target aircraft being a control object to quickly shift to automatic tracking.SOLUTION: A radar information processing device 3 receives first radar information to be updated at a first update rate from an ASR/SIF (SSR) device 1, receives second radar information to be updated at a second update rate from a PAR device 2, the second radar information being higher than the first radar information, and includes: a first correlation processing unit 31 for correlating the first radar information with flight plan information of the aircraft; a tracking processing unit 32 for predicting a position of the aircraft based on the first radar information at a cycle shorter than the first update rate; and a second correlation processing unit for correlating the first radar information and the second radar information based on the position predicted by the tracking processing unit 32.

Description

  Embodiments described herein relate generally to a radar information processing apparatus and a radar information processing program used in, for example, an air traffic control radar system.

  Air traffic control radar systems generally include airport surveillance radar (ASR: Airport Surveilance Radar), secondary surveillance radar (SSR: Secondary Surveilance Radar), and precision approach radar (PAR). : Precision Approach Radar). Aircraft in the airspace around the airport are guided to the vicinity of the runway by ASR / SIF (SIF (SSR)), and further to the closest runway by PAR. In the PAR radar coverage, the elevation angle and azimuth angle of the antenna that emits radar waves toward the target aircraft are automatically controlled, and the aircraft to be controlled is automatically tracked. In this way, various radars are used to control aircraft in order to ensure safe operation.

The Institute of Electronics, Information and Communication Engineers, “Revised Radar Technology”, first edition, October 1, 1996, p. 212-233

  However, since ASR / SIF (SSR) requires a wider coverage than PAR, the scanning speed is slow and the update rate of radar data is slow. As a result, even when entering the PAR coverage, there is a problem that it is not possible to immediately shift to automatic tracking by PAR based on the ASR / SIF (SSR) target.

  An object of the present embodiment is to provide a radar information processing apparatus and a radar information processing program that can quickly shift an aircraft target to be controlled to automatic tracking.

The radar information processing apparatus according to the present embodiment is an apparatus that processes radar information of a controlled aircraft obtained by the first and second radar apparatuses, and is a first radar that is updated at a first update rate. First receiving means for receiving information from the first radar device, and second radar information updated at a second update rate higher than the first update rate is received from the second radar device. A second receiving means; a first correlating means for associating the first radar information with the flight plan information of the aircraft; and a cycle shorter than the first update rate based on the first radar information. Tracking means for predicting the position of the aircraft, and second correlation means for associating the first radar information with the second radar information based on the position predicted by the tracking means. is there.

  The radar information processing program according to the present embodiment is a program used in a device for processing radar information of an aircraft to be controlled obtained by the first and second radar devices, and is transmitted to the computer at a first update rate. A first reception process for receiving updated first radar information from the first radar device; and second radar information updated at a second update rate higher than the first update rate. Second reception processing received from the second radar apparatus, first correlation processing for associating the first radar information with flight plan information of the aircraft, and the first radar information based on the first radar information. A tracking process for predicting the position of the aircraft with a cycle shorter than the update rate of the first radar information and the second radar information based on the position predicted by the tracking means It is intended to execute a second correlation process.

It is a figure which shows the structure of the radar information processing apparatus which concerns on this embodiment. It is a figure which shows the correlation process of the radar information processing apparatus of FIG. It is a figure which shows the correlation process of a general radar information processing apparatus.

  Hereinafter, a radar information processing apparatus and a radar information processing program according to the present embodiment will be described with reference to the drawings.

  FIG. 1 is a diagram illustrating a configuration of a radar information processing apparatus according to the present embodiment. The radar information processing device 3 includes a secondary surveillance radar (SSR) device 1 such as an ASR (Airport Surveilance Radar) and an SIF (Selective Identification Feature), a PAR (Precision Approach Radar) device 2, an ASR / An SIF (SSR) display device 4 and a PAR display device 5 are connected. The radar information processing device 3 includes a first correlation processing unit 31, a second correlation processing unit, and a tracking processing unit 33.

  The radar information processing device 3 uses the ASR / SIF (SSR) device 1 to obtain the radar information (first radar information) of the ASR / SIF (SSR) target indicating the aircraft around the airport obtained at the first update rate (for example, 4 cycle). Also, the radar information processing device 3 uses the PAR target radar information (second radar information) indicating the aircraft around the runway obtained by the PAR device 2 as the second update rate (for example, 0.5 to 3 seconds). (Period).

  The first correlation processing unit 31 performs correlation processing for associating radar information of an ASR / SIF (SSR) target with flight plan information of an aircraft provided from a flight information management system or the like. The ASR / SIF (SSR) display device 4 displays a PPI image in which an aircraft model, a flight altitude, and the like are superimposed together with a radar video signal.

  The tracking processing unit 33 predicts the position of the aircraft at a cycle shorter than the first update rate (for example, every second) based on the radar information of the ASR / SIF (SSR) target. Information representing the tracked predicted position is sent to the second correlation processing unit 32 together with radar information of an ASR / SIF (SSR) target associated with the flight plan information.

  The second correlation processing unit 32 performs second correlation processing for associating the radar information of the ASR / SIF (SSR) target with the radar information of the PAR target based on the position predicted by the tracking processing unit 33. The aircraft to be controlled is specified by the second correlation processing, and the automatic tracking by the PAR device 2 is performed. The PAR display device 5 displays an EPI image showing the position of the aircraft in the elevation direction and the azimuth direction from the ground contact point of the runway.

  The operation of the radar information processing apparatus 3 configured as described above will be described. FIG. 2 is a diagram showing the correlation processing of the radar information processing device 3.

  As shown in FIG. 2, the tracking processing unit 33 performs tracking processing of the ASR / SIF (SSR) target received at a cycle of 4 seconds at a cycle of 1 second, and performs a correlation process with the PAR target based on the predicted position. I do. By doing in this way, the time until the correlation between the PAR target and the ASR / SIF (SSR) target is obtained can be set to 3 seconds + α (α: processing time) at the maximum.

  FIG. 3 shows the correlation processing of a conventional radar information processing apparatus. In the conventional method, the correlation processing between the ASR / SIF (SSR) target and the PAR target is performed based on the update rate of the ASR / SIF (SSR) target. Therefore, as shown in FIG. 3, since the update rate of the ASR / SIF (SSR) target is 4 seconds and the update rate during the PAR search is 0.5 to 3 seconds, the PAR target and the ASR / SIF ( It takes a maximum of 7 seconds + α (α: processing time) until a correlation with the SSR target is obtained.

  On the other hand, according to the present embodiment, as shown in FIG. 2 above, based on the radar information of the ASR / SIF (SSR) target, the target is shorter than the update rate of the ASR / SIF (SSR) device 1. Is predicted and tracked, and correlation processing with the PAR target based on the predicted position is performed. By doing so, the time until the correlation between the PAR target and the ASR / SIF (SSR) target is obtained is shortened compared to the conventional method, and the automatic target tracking is performed after the aircraft target enters the PAR coverage area. The time until it can be shortened.

  Note that the present invention is not limited to the above-described embodiment as it is, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. In addition, various inventions can be formed by appropriately combining a plurality of components disclosed in the embodiment. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, constituent elements over different embodiments may be appropriately combined.

  DESCRIPTION OF SYMBOLS 1 ... ASR / SIF (SSR) apparatus, 2 ... PAR apparatus, 3 ... Radar information processing apparatus, 4 ... ASR / SIF (SSR) display apparatus, 5 ... PAR display apparatus, 31 ... 1st correlation process part, 32 ... 1st 2 correlation processing units, 33... Tracking processing unit.

Claims (2)

A device for processing radar information of an aircraft to be controlled obtained by the first and second radar devices,
First receiving means for receiving, from the first radar device, first radar information updated at a first update rate;
Second receiving means for receiving, from the second radar device, second radar information updated at a second update rate higher than the first update rate;
First correlation means for associating the first radar information with the flight plan information of the aircraft;
Tracking means for predicting the position of the aircraft at a cycle shorter than the first update rate based on the first radar information;
A radar information processing apparatus comprising: second correlation means for associating the first radar information with the second radar information based on the position predicted by the tracking means. A program used for an apparatus for processing radar information of an aircraft to be controlled obtained by first and second radar apparatuses,
On the computer,
A first reception process for receiving, from the first radar device, first radar information updated at a first update rate;
A second reception process for receiving, from the second radar device, second radar information updated at a second update rate higher than the first update rate;
A first correlation process for associating the first radar information with the flight plan information of the aircraft;
A tracking process for predicting the position of the aircraft at a cycle shorter than the first update rate based on the first radar information;
A radar information processing program for executing a second correlation process for associating the first radar information with the second radar information based on the position predicted by the tracking means.

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