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Anti-interference treatment method based on navigation management secondary radar test system

A technology of secondary radar and testing system, which is applied in the direction of radio wave measurement system, measuring device, radio wave reflection/reradiation, etc. It can solve the problems of weak anti-interference ability and achieve the effect of improving anti-interference ability

Inactive Publication Date: 2012-07-04
NINGBO CHENGDIAN TAIKE ELECTRONICS INFORMATION TECH DEV
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  • Claims
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Problems solved by technology

[0006] The purpose of the present invention is to overcome the shortcoming that the existing air traffic control secondary radar test system is not strong in anti-interference ability in a complex and strong electromagnetic interference environment, and proposes an anti-interference processing method based on the air traffic control secondary radar test system

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  • Anti-interference treatment method based on navigation management secondary radar test system
  • Anti-interference treatment method based on navigation management secondary radar test system
  • Anti-interference treatment method based on navigation management secondary radar test system

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Embodiment Construction

[0033] Below in conjunction with accompanying drawing and specific implementation the present invention will be further described:

[0034] In this embodiment, the selected target air traffic control secondary radar is the air traffic control secondary radar of 3 / A inquiry mode, and its format is as follows figure 1 As shown, the amplitude values ​​of P1 and P3 are equal, the time interval between P1 and P3 is 8us, the time interval between P1 and P2 is 2us, and the amplitude values ​​of P1, P2, and P3 change randomly during the transmission process. In this embodiment, a sampling frequency of 20 MHz is adopted, and the pulse repetition frequency ranges from 150 Hz to 450 Hz, that is, the pulse repetition period is 2.2 ms to 6.7 ms.

[0035] S1. Raw data initialization: Initialize the system data of the air traffic control secondary radar function test analyzer. Initialize the judgment threshold value, memory pool allocation, data classification and grouping, interference pul...

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Abstract

The invention relates to an anti-interference treatment method based on a navigation management secondary radar test system, which comprises the following steps: S1, initializing original data: initializing the system data of the navigation management secondary radar test system; S2, detecting a dynamic threshold sliding window: extracting an effective pulse signal sequence from the pulse signalsreceived from a navigation management secondary radar function test analyzer; S3, removing asynchronous interference pulse signals: removing the asynchronous interference pulse signals in the effective pulse signal sequence extracted in the step S2 to obtain the effective pulse signal sequence of a target navigation management secondary radar; S4, grouping pulses: grouping the pulses of the effective pulse signal sequence of the target navigation management secondary radar obtained in the step S3 to obtain the integral information data of target navigation management secondary radar; and S5, outputting a result. The invention has the advantage of improving the anti-interference capacity of the navigation management secondary radar test system.

Description

technical field [0001] The invention belongs to the technical field of radar measurement and control navigation systems, and in particular relates to a secondary radar testing system for air traffic management. Background technique [0002] Secondary Surveillance Radar (abbreviated as SSR) was originally developed as a friend-or-foe identification system in air combat in order to enable the radar to distinguish the aircraft of both the enemy and the enemy. Later, the basic principles and components of this system were developed and used Air traffic control in civil aviation. From the SSR, the controller can easily know the number, altitude, direction and other parameters of the aircraft, so that the radar is changed from a monitoring tool to a means of air control. The emergence of SSR is the most significant technical progress of air traffic control. [0003] Air Traffic Control Secondary Radar (SSR) works under the cooperation of the ground station and the target transpon...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S7/36G01S13/74
Inventor 张超郑植杨瀚程张小倩
Owner NINGBO CHENGDIAN TAIKE ELECTRONICS INFORMATION TECH DEV
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