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GPU-based video displaying method for rotary antenna radar

A technology of video display and rotating antenna, applied in radio wave measurement systems, instruments, etc., can solve the problems of backward scanning conversion method, poor display effect, high cost of hardware board development, upgrade and maintenance, and achieve good display effect and high The effect of flexibility, improved reliability and ease of maintenance

Active Publication Date: 2014-11-12
SHAANXI CHANGLING ELECTRONICS TECH
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AI Technical Summary

Problems solved by technology

However, the above-mentioned technology has the following difficulties or shortcomings: (1) The development, upgrade and maintenance costs of hardware boards are high; (2) The display effect is poor, and the afterglow has a sandy feeling; (3) The hardware boards of digital logic circuits are used to realize radar Video number coordinate scan transform and echo afterglow effect way behind

Method used

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  • GPU-based video displaying method for rotary antenna radar
  • GPU-based video displaying method for rotary antenna radar
  • GPU-based video displaying method for rotary antenna radar

Examples

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Embodiment Construction

[0028] refer to figure 1 , illustrate a kind of rotating antenna radar of the present invention based on the video display method of GPU (Graphic Processing Unit), it comprises the following steps:

[0029] Step 1, receiving radar video data: receive continuous radar video data according to azimuth, and extract the current azimuth value th and the rotation direction of the radar antenna; wherein, the radar video data is the unit data of m azimuth dimensions and n distance dimensions.

[0030] Step 2, constructing textures: constructing an m×n-dimensional first texture and an m×n-dimensional second texture according to unit data, the first texture storing unit data.

[0031] Set the size and parameters of the first texture and the second texture, specifically: in order to make the texture coordinates correspond to the m×n-dimensional unit data positions one-to-one, the texture type of the first texture needs to be set to rectangular texture, and the texture format is set to It...

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Abstract

The invention discloses a GPU-based video displaying method for a rotary antenna radar. The GPU-based video displaying method is characterized by including the following steps: (1) receiving radar video data, wherein the radar video data are unit data in m orientation dimensions and n distance dimensions; (2) building first grains in m*n dimensions and second grains in m*n dimensions according to the unit data, wherein the unit data are stored in the first grains; (3) determining a radar displaying window and a viewport, and mapping a viewport area in the grains; (4) carrying out coordinate transformation and mapping; (5) building a current frame through a circular displaying area mapped in the second grains, and displaying a circular-face image corresponding to the radar video data in the displaying viewport area.

Description

technical field [0001] The invention belongs to the technical field of radar display control, in particular to a GPU-based video display method for rotating antenna radar. Background technique [0002] Scan conversion and afterglow control of radar video are the foundation and important components of radar display and control technology. Usually the radar echo is digitally sampled to form radar video data, and the radar video data is output in the form of polar coordinates (distance and azimuth). However, the input of a general-purpose raster scan display is video data in rectangular coordinates. When displaying radar video data, conversion from polar coordinates to rectangular coordinates is required. [0003] The traditional radar video display uses a cathode ray tube display, and its target echo signal is displayed by the afterglow (temporary storage) effect of the fluorescent material inside the display, that is, the gradually faded afterglow left by the scanning line o...

Claims

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Application Information

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IPC IPC(8): G01S7/04
CPCG01S7/064
Inventor 彭叶飞王文军荆恒李宇
Owner SHAANXI CHANGLING ELECTRONICS TECH
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