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Self-adaptive control method and apparatus for inquiry frequency of secondary surveillance radar

An adaptive control, secondary radar technology, applied in measurement devices, radio wave reflection/re-radiation, utilization of re-radiation, etc. Increase interference, reduce crosstalk, and avoid the effect of occupying time

Inactive Publication Date: 2016-01-13
SICHUAN JIUZHOU ELECTRIC GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides an adaptive control method and device for secondary radar inquiry times of air traffic management, which is used to solve the technical problem in the prior art that the number of inquiries cannot be better adapted to different working environments due to the fixed number of inquiries

Method used

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  • Self-adaptive control method and apparatus for inquiry frequency of secondary surveillance radar
  • Self-adaptive control method and apparatus for inquiry frequency of secondary surveillance radar
  • Self-adaptive control method and apparatus for inquiry frequency of secondary surveillance radar

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Embodiment 1

[0044] The executive body of this embodiment is the air traffic control secondary radar inquiry times adaptive control device. figure 1 It is a schematic flow chart of Embodiment 1 of the adaptive control method for the number of times of air traffic control secondary radar inquiries provided by the present invention, as shown in figure 1 As shown, the air traffic control secondary radar inquiry times adaptive control method provided by the present invention includes:

[0045] Step a: Set the current number of inquiries n=1.

[0046] Since the inquiry must start from the first time, the initial value of the current number of inquiries n is set to 1, and then go to step b.

[0047] Step b: Initiate the nth query to the target, and obtain the target orientation value measured by the nth query.

[0048] Specifically, the longitude and latitude of the target are usually used on the map to uniquely determine the position of the target, while the air traffic control secondary rada...

Embodiment 2

[0057] The executive body of this embodiment is the air traffic control secondary radar inquiry times adaptive control device. figure 2 It is a schematic flow chart of Embodiment 2 of the adaptive control method for the number of secondary radar inquiries of air traffic management provided according to the present invention, as shown in figure 2 As shown, the air traffic control secondary radar inquiry times adaptive control method provided by the present invention includes:

[0058] Step 101: Initialize the maximum number of inquiries Max, set the current number of inquiries n=1, go to step 102.

[0059] Specifically, in order to ensure that the measurement accuracy of the target orientation value meets the index requirements, an inquiry process often includes multiple inquiries, and the maximum number of inquiries Max is the maximum number of inquiries in an inquiry process, which can be set to 15 or 20, depending on the actual situation. It is set according to the situat...

Embodiment 3

[0071] This embodiment is a supplementary description based on the above embodiments.

[0072] image 3 It is a schematic flow chart of Embodiment 3 of the adaptive control method for the number of times of air traffic control secondary radar inquiries provided by the present invention, as shown in image 3 As shown, the air traffic control secondary radar inquiry times adaptive control method provided by the present invention includes:

[0073] Step 101: Initialize the maximum number of inquiries Max and the minimum number of inquiries Min, set the current number of inquiries n=1, and go to step 102.

[0074] Specifically, in addition to setting the maximum number of inquiries Max, the minimum number of inquiries Min should also be set, so that when the working environment is good, even if the target azimuth value obtained by a few inquiries meets the measurement accuracy requirements, the minimum number of inquiries can not be reached. When the number of inquiries is Min, ...

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Abstract

The invention provides a self-adaptive control method and apparatus for the inquiry frequency of secondary surveillance radar. The method includes the steps: a, initializing the maximum inquiry frequency Max, and setting the current inquiry frequency n=1; b, conducting the n inquiry for a target, and obtaining a measured target direction value during the n inquiry; c, calculating the average uncertainty of target direction values measured during the previous n times of inquiry, determining whether the average uncertainty is smaller than a preset threshold, stopping target inquiry if the average uncertainty is smaller than the preset threshold and taking the average value of the previous n times of target direction values as a final target direction value, and performing the step d if the average uncertainty is not smaller than the preset threshold; and d, determining whether the current inquiry frequency n is greater than the maximum inquiry frequency Max, taking the average value of the previous n times of target direction values as a final target direction value if the current inquiry frequency n is greater than the maximum inquiry frequency Max, otherwise, adding 1 to the current inquiry frequency n and going back to the step b. According to the method, the measurement precision of a target direction value can be ensured, the target inquiry frequency can be controlled in a self-adaptive manner, and signal crosstalk and interference in a system can be minimized.

Description

technical field [0001] The invention relates to the air traffic control secondary radar technology, in particular to an air traffic control secondary radar inquiry frequency self-adaptive control method and device. Background technique [0002] The air traffic control secondary radar system is specially designed to complete the detection / recognition of cooperative targets, and generally includes ground interrogation equipment and antenna systems, airborne response equipment and response antenna systems, and spot acquisition and display equipment. The equipment responds to the electromagnetic waves emitted by the ground interrogation equipment to complete the detection and positioning of the air cooperation target. Electromagnetic waves propagate at the speed of light in the air, and the ground interrogation equipment measures the distance of the target by measuring the time when the response signal lags behind the interrogation signal. At the same time, according to the ampl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S13/76G01S7/282
CPCG01S13/76G01S7/282
Inventor 李红辉李宏伟任周唱
Owner SICHUAN JIUZHOU ELECTRIC GROUP
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