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A clutter map detection and update method based on primitive clutter maps and layers

A clutter map and primitive technology, applied in radio wave measurement systems, instruments, etc., can solve the problem that clutter map detection technology cannot achieve global optimal detection.

Active Publication Date: 2021-04-30
NANJING LES ELECTRONICS EQUIP CO LTD
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AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a refined clutter map detection method for the deficiencies of the existing clutter map detection technology, which solves the problem that the current clutter map detection technology cannot achieve global optimal detection

Method used

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  • A clutter map detection and update method based on primitive clutter maps and layers
  • A clutter map detection and update method based on primitive clutter maps and layers
  • A clutter map detection and update method based on primitive clutter maps and layers

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Embodiment

[0094]Such asFigure 8 As shown, the present invention discloses a refined clutter diagram detection algorithm based on a primary clutter map and a layer, including the following steps:

[0095]Step 1: Create a layer according to the airport map information, and press the fixed format to store as a layer file.

[0096](1) The radar detection area is divided into 8192 square unit X2048 distance units in a position, and the layer information of each unit is characterized by three bytes, each bit represents a region. The airport is divided into 4 areas: runway area, endless road area, sliding channel, lawn area, non-detection zone.

[0097]Step 2: Read the layer file and convert to the primary unit in units in the layer array.

[0098]The primitive size is set to 2 square code X2 distance sampling unit, and the establishment update of the subsequent clutter is processed in units of primary. The detection area is divided into 4096x1024 primitives in a position-oriented unit, and the layer file is re...

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Abstract

The invention discloses a method for detecting and updating a clutter map based on a primitive clutter map and a layer, comprising: step 1: establishing a layer according to airport map information, and storing it as a layer file in a fixed format; step 2: Divide the detection area according to the azimuth and distance in units of primitives, read the layer file, and store the layer files in the layer array in the format of azimuth, distance, and area information in units of primitives; Step 3: Establish Primitive clutter map, store the primitive clutter map in the clutter map array in the unit of azimuth, distance, and clutter map value format; The distance and the format of the detection mark are stored in the detection mark array in units of primitives; Step 5: Read the area information in the layer file, and read the corresponding clutter map to update the parameters, according to the detection results in the detection mark array , to freeze or update the clutter map of the corresponding area in units of primitives.

Description

Technical field[0001]The present invention relates to the field of radar data processing, and more particularly to a method of detecting and updating a clutter diagram of a layer based on a primitive clutter.Background technique[0002]Clutter map detection is intended to filter out stationary target echoes, articular clutter, and the like to effectively detect moving targets.[0003]Scene monitoring radar mainly monitors the moving objectives inside the airport and some stationary airplane objectives, and the clutter detection algorithm based on freezing mode effectively realizes the simultaneous detection of moving targets and slow, stop target; region-control-based improving clutter The figure can realize the suppression of miscellaneous false alerts by artificial editing of special areas. All of these algorithms are based on a general clutter to detect updates, and the setup of the clutter graph sets the parameters directly affect the detection probability, and cannot reach the doma...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S7/41
CPCG01S7/414G01S7/415
Inventor 赵玉丽翟海涛徐勇童建文龙超商凯陈硕刘文吴贝贝陈凌
Owner NANJING LES ELECTRONICS EQUIP CO LTD
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