Secondary-radar-based achieving method of target multipath effect suppression technology

A technology of multi-path effect and realization method, which is applied in the realization field based on secondary radar multi-path effect suppression technology, can solve the problem of secondary radar multi-path suppression technology being in a blank state, etc., and achieves enhanced system target recognition probability and reliability. , improve data quality, enhance reliability and stability

Active Publication Date: 2013-11-27
四川九洲空管科技有限责任公司
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Problems solved by technology

In the past two decades, the research on primary radar multipath suppression technology at home and abroad has achieved fruitful results, and it has been su

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  • Secondary-radar-based achieving method of target multipath effect suppression technology
  • Secondary-radar-based achieving method of target multipath effect suppression technology

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Embodiment Construction

[0014] The specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0015] The invention discloses an implementation method based on secondary radar multipath effect suppression technology, which specifically includes the following steps:

[0016] Step 1. The track processing module receives and saves the historical point track data in real time (according to the effective number of target responses, it can be divided into definite track historical data and non-definite track historical data), and combines the newly detected target point track data with the determined Tracks can be code-matched, and the code-matching principle is: the detection target codes are the same and the distance is within a certain correlation threshold, then they are the same target. If the code matches successfully, go to step 2, otherwise, add the new detection target point track data to the undetermined track histori...

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Abstract

The invention discloses a secondary-radar-based achieving method of a target multipath effect suppression technology. The method comprises the following steps that history trace point data are received and saved in real time, code matching is carried out, and period updating judgment is carried out after code matching is successful; target false judgment is conducted on updated new trace point data in a period according to multipath effect judgment criteria within the scanning period, data meeting requirements are reported, and data which do not meet the requirements are regarded as false trace point data and are discarded; initial target false judgment is rigidly conducted on new trace point data which are not updated in the period according to multipath effect judgment criteria within different scanning periods, data meeting requirements are reported, and data which do not meet the requirements are judged again. When being applied to a secondary ground radar and an airplane-mounted secondary radar, the secondary-radar-based achieving method can improve data quality of monitored targets and improves reliability and stability of a secondary radar system.

Description

technical field [0001] The invention relates to the technical field of secondary radar communication, in particular to an implementation method based on secondary radar multipath effect suppression technology. Background technique [0002] In the complex electromagnetic wave environment, there are multiple monitoring methods such as primary radar, secondary radar, ADS-B, ADS-X, etc. for the monitoring of flying targets. These means complement each other and provide reliable information technology for the monitoring of flying targets in the air. Support, due to the low cost of secondary radar and the advantages of active detection, secondary radar is an indispensable technical means in the entire airspace flying target monitoring system, but due to the serious impact of multipath effects, resulting in The data quality of the target is severely reduced. How to accurately and efficiently judge the true and false of the affected target and remove the false target is a difficult ...

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Application Information

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IPC IPC(8): G01S7/36
Inventor 张中南李海军李荣李建秋
Owner 四川九洲空管科技有限责任公司
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