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Radar data true north fan moveout monitoring method

A technology of radar data and true north fan, applied in the field of radar data processing of air traffic control automation system, can solve problems such as deviation of actual situation, and achieve the effect of reducing impact and ensuring accuracy

Active Publication Date: 2009-04-29
NANJING LES INFORMATION TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the data is not updated in time and correctly, the position of the target seen by the ATC system user on the display screen will deviate greatly from the actual situation

Method used

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  • Radar data true north fan moveout monitoring method
  • Radar data true north fan moveout monitoring method

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Experimental program
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Embodiment Construction

[0029] As shown in Fig. 1, the present invention describes the monitoring method of radar data fan number statistics, and this method comprises the following steps:

[0030] Step 1, initialize the physical port;

[0031] Step 2, obtain the alarm threshold value Rc of the standard time interval Tc of the radar true north fan and the time deviation ratio from the configuration file;

[0032] Step 3, read the physical port;

[0033] Step 4, perform CRC check on the read radar data frame, if the result is no, return to step 3, otherwise proceed to the next step;

[0034] Step 5, add timestamp information to the data frame;

[0035] Step 6, analyze the radar data frame, obtain the data frame type and the true north information of the data frame;

[0036] Step 7. If the previous data frame does not contain true north information, return to step 3. Otherwise, calculate the time between the current true north frame and the previous true north frame according to the timestamp of the...

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Abstract

The invention discloses a radar data due north fan time difference monitoring method. The method comprises the following steps: initializing a physical port; acquiring standard time interval Tc and alarm threshold value Rc of time deviation ratio of the due north fan; reading the physical port; returning to radar data frame and CRC verified results at the same time; adding time stamp information to the radar data frame; analyzing the radar data frame as well as acquiring data frame type and due north information of the data frame; calculating time difference value Td between the current due north frame and the last due north frame according to the data frame time stamp; under the condition that the due north time difference is larger than 1.5 times of scan period standard value Tc or smaller than half of the scan period standard value Tc, judging the abnormity of the due north time difference and outputting due north time difference abnormal information; detecting whether deviation Rd of standard interval is larger than alarm threshold value Rc; outputting due north fan time difference transfinite alarm information and time difference numerical value; and recording time stamp of the due north fan at the time. The method can ensure precision of output result of the system.

Description

technical field [0001] The invention belongs to the technical field of radar data processing of an air traffic control automation system, in particular to a radar data positive north fan time difference monitoring method for connecting air traffic control radar information and dynamically monitoring the quality of the radar data. Background technique [0002] Radar data is the main information source of the air traffic control automation system. Through the connection and processing of multiple radar data, the air situation display of the controlled airspace is formed, and the controller can grasp the status of each batch of aircraft in the airspace at the control seat of the system. Flight dynamics and flight parameters, through ground-air communication equipment, implement air traffic control and coordinate command. [0003] Due to different technical systems and different manufacturers of radar equipment, there are many radar programs. Therefore, the radar information con...

Claims

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Application Information

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IPC IPC(8): G01S7/40G01S13/91G08G5/00
Inventor 王匀丁一波杨恺祁伟
Owner NANJING LES INFORMATION TECH
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