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Angular error slope value detection method, device and equipment

An angular error and slope technology, which is applied in the field of angular error slope value detection, can solve the problems of large slope value error and reduced image target positioning accuracy, and achieves the effect of solving result deviation and reducing accuracy.

Active Publication Date: 2022-07-08
LEIHUA ELECTRONICS TECH RES INST AVIATION IND OF CHINA
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Problems solved by technology

This method can achieve ideal results in flat imaging areas, but in complex imaging scenes, there are a large number of angular error singular points in the image data due to terrain fluctuations, occlusion, strong reflection targets, radar noise, etc. , by calculating the mean value and straight line fitting, the error of the slope value obtained is very large, resulting in a great decrease in the positioning accuracy of the image target

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  • Angular error slope value detection method, device and equipment
  • Angular error slope value detection method, device and equipment
  • Angular error slope value detection method, device and equipment

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Embodiment Construction

[0018] The embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings.

[0019] The embodiments of the present disclosure are described below through specific specific examples, and those skilled in the art can easily understand other advantages and effects of the present disclosure from the content disclosed in this specification. Obviously, the described embodiments are only some, but not all, embodiments of the present disclosure. The present disclosure can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present disclosure. It should be noted that the following embodiments and features in the embodiments may be combined with each other under the condition of no conflict. Based on the embodiments in the present disclosure, all oth...

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Abstract

The invention provides an angular error slope value detection method, device and equipment, belonging to the technical field of radar information, and specifically comprising calculating echo samples of the radar main beam in the sum-difference channel and the azimuth direction of the image data according to the radar imaging data Number of points; calculate the discrete degree values ​​of the echo sample points of the sum image data on each distance gate, sort the discrete degree values ​​of all distance gates, and select a specific number of distance gates with small discrete degree values; Generate the sample area to be analyzed according to the selected range gate and the echo sample point; The data calculates the angular error of the echo sample points in the sample area; based on the angular error of the echo sample points, a slope value is obtained by fitting and calculation. Through the processing scheme of the present disclosure, for complex scenes, the slope value error is reduced.

Description

technical field [0001] The invention relates to a radar information processing technology, in particular to a method, device and equipment for detecting an angular error slope value. Background technique [0002] In the imaging mode near the center of the radar antenna beam, the angular error signal is approximately linear. The azimuth slope value of the image is obtained by fitting the angular error data near the zero point. dependent data. The traditional image angular error slope detection method uses the mean value of angular error data and straight line fitting to calculate the straight line slope, and obtains the distance from the radar target point to the axis, so as to realize the positioning of the target in the beam azimuth dimension on the image. This method can achieve ideal results in imaging areas with flat ground conditions, but in complex imaging scenes, due to terrain fluctuations, occlusion, strong reflection targets, radar noise, etc., there are a large n...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S13/90G01S13/10G01S7/292
CPCG01S13/10G01S13/90G01S7/292
Inventor 卢建章张翔李鹏飞
Owner LEIHUA ELECTRONICS TECH RES INST AVIATION IND OF CHINA