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Wind farm clutter recognition and suppression method based on dynamic clutter map

An identification method and clutter map technology, applied in the field of radar detection, can solve problems such as effective detection of air traffic control targets, and achieve the effect of suppressing multipath clutter

Inactive Publication Date: 2012-10-10
CIVIL AVIATION UNIV OF CHINA
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Problems solved by technology

[0004] In order to solve the above problems, the object of the present invention is to provide a wind farm clutter identification and suppression method based on a dynamic clutter map, to solve the problem of effective detection of air traffic control targets in the wind farm clutter environment

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  • Wind farm clutter recognition and suppression method based on dynamic clutter map
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  • Wind farm clutter recognition and suppression method based on dynamic clutter map

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Embodiment Construction

[0033] The wind farm clutter identification and suppression method based on the dynamic clutter map provided by the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0034] Such as figure 1 As shown, the wind farm clutter identification and suppression method based on the dynamic clutter map provided by the present invention includes the following steps in order:

[0035] 1) After the air traffic control surveillance radar is turned on, it first collects and stores the data of M scans as the initial sample, and then calculates the statistical average of the initial sample data to form the initial quasi-clutter map. The significance of forming a quasi-clutter map is described in detail below:

[0036] Since the echo of the mast, the fixed part of the wind turbine, can be well suppressed by the traditional MTD technology of the air traffic control radar, while the rotating blade will cause the echo Dopp...

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Abstract

The invention discloses a wind farm clutter recognition and suppression method based on a dynamic clutter map. The wind farm clutter recognition and suppression method comprises the following steps of: acquiring and storing M times of scanning data serving as an initial sample by using a radar, evaluating initial sample data, and counting and averaging to form a quasi-clutter map; judging whether wind farm clutter exists in data of each distance unit according to the quasi-clutter map, and marking units in which the presence of wind farm clutter is judged to form a clutter map; matching data obtained by current scanning with the clutter map unit after unit, and eliminating currently-scanned data corresponding to the marked clutter in the clutter map from echo data; and continuously updating a sample for forming the clutter map according to the currently-scanned data to obtain a dynamic clutter map which changes along with the practical environment, and applying the dynamic clutter map to real-time processing of data obtained by each scanning. The recognition result of the wind farm clutter recognition and suppression method based on the dynamic clutter map disclosed by the invention can be applied to recognition and suppression of aviation management monitoring radar wind farm clutter, and the method plays an important role in ensuring aircraft flight safety.

Description

technical field [0001] The invention belongs to the technical field of radar detection, and in particular relates to a wind farm clutter identification and suppression method based on a dynamic clutter map, which can effectively detect air traffic control surveillance radar targets under the background of wind farm clutter, and is useful for safeguarding aviation Flight safety is of great significance. Background technique [0002] Wind energy is inexhaustible clean, pollution-free and renewable energy. Compared with thermal power generation, fuel-fired power generation, and nuclear power generation, it does not need to purchase fuel, pay for freight, and do not need to carry out environmental protection treatment of power generation residues and the atmosphere. However, studies have shown that wind farms may have a significant impact on flight and navigation safety. The reason is that the main body of the wind farm is a wind turbine, and its mast height is often close to o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/41G01S7/36
Inventor 贾琼琼吴仁彪王晓亮
Owner CIVIL AVIATION UNIV OF CHINA
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