Two-degree-of-freedom motion attitude measurement method based on visual recognition for airborne radar antenna

An airborne radar and visual recognition technology, which is used in measuring devices, measuring instruments, surveying and navigation, etc., can solve the problems of complex operation of measurement methods, large operation error factors, and many external interferences, so as to reduce complex steps and improve The effect of measuring accuracy and improving test accuracy

Inactive Publication Date: 2018-12-21
LEIHUA ELECTRONICS TECH RES INST AVIATION IND OF CHINA
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Problems solved by technology

[0003] Traditional measurement methods are complicated to operate, with large human error factors, many external interferences, and low measurement accuracy.

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  • Two-degree-of-freedom motion attitude measurement method based on visual recognition for airborne radar antenna
  • Two-degree-of-freedom motion attitude measurement method based on visual recognition for airborne radar antenna
  • Two-degree-of-freedom motion attitude measurement method based on visual recognition for airborne radar antenna

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[0021] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below in conjunction with the drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the invention. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention. Embodiments of the present invention will be described in detail below ...

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Abstract

The invention provides a two-degree-of-freedom motion attitude measurement method based on visual recognition for an airborne radar antenna, and belongs to the field of motion attitude measurement ofairborne radar antennas. The method comprises the following steps: setting an orientation detection identifier on a mechanism for azimuth movement, setting a pitch detection identifier on a mechanismfor azimuth and pitch movement, collecting motion start and end points and a motion time of the detection identifier by an image collection device, calculating a rotation angle according to the distance between the motion start and end points and the motion radius, and calculating angular velocities and angular accelerations for azimuth and pitch according to the rotation angle and the motion time. The method can accurately detect two-degree-of-freedom motion attitude information of the airborne radar antenna within a certain range, and can finally realize the detection of angular velocities and angular accelerations for azimuth and pitch of antennas, which is convenient, accurate and reliable.

Description

technical field [0001] The invention belongs to the field of motion attitude measurement of an airborne radar antenna, in particular to a method for measuring a two-degree-of-freedom motion attitude based on visual recognition. Background technique [0002] In the process of calculating the motion and attitude parameters of the onboard radar antenna, it is necessary to obtain the angular position parameters and time information of the antenna. The traditional method of measuring the attitude and movement of the antenna mainly relies on manual operation to read the antenna rotation angle. The time information is also obtained by manually reading the stopwatch. This measurement method is largely limited by the reaction time and Operating time, reliability and accuracy of measurement results cannot be accurately used as the standard for evaluating the performance parameters of airborne radar system antenna motion attitude. Visual recognition measurement is a measurement techno...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C15/00
CPCG01C15/00
Inventor 于文博郭光钱君
Owner LEIHUA ELECTRONICS TECH RES INST AVIATION IND OF CHINA
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