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Double-B display method of landing guidance radar

A display method and technology for guiding radar, applied in the field of radar, can solve the problems of unintuitive picture, unfavorable observation, inability to display target height, etc., and achieve the effect of being easy to use

Active Publication Date: 2016-02-24
SHAANXI CHANGLING ELECTRONICS TECH
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Problems solved by technology

The disadvantages of this display method are: the target height cannot be displayed, and the displayed information is not comprehensive;
The disadvantage of this display method is that it cannot display the height and azimuth of the target at the same time, and the picture is not intuitive, which is not conducive to the effective guidance of the radar to the target
[0005] E-type display, which uses the abscissa of the light point on the plane to represent the distance, and the ordinate to represent the elevation angle or height of the target. Although this display can display the three-dimensional coordinate parameters of the target, the screen is not intuitive and is not conducive to observation

Method used

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  • Double-B display method of landing guidance radar
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  • Double-B display method of landing guidance radar

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Embodiment Construction

[0021] refer to figure 1 , the implementation steps of the present invention are as follows:

[0022] Step 1 Build Radar Video Matrix

[0023] (1a) The radar display receives the pointing angle of the radar antenna. The pointing angle includes the downhill pointing angle and the heading pointing angle. In one scanning cycle of the radar, the pointing angles of n radar antennas are received to form the angle data of n azimuth dimensions, 0 <n≤1000;

[0024] (1b) Use m echo points shared by one antenna pointing angle to form unit data with dimension m, 0

[0025] (1c) express the echo intensity of each echo point with 8bit binary number;

[0026] (1d) Use unit data as rows, angle data as columns, and echo intensity as elements to construct an m×n-dimensional radar video matrix N:

[0027] where a ij Indicates the echo intensity at distance i and angle j,

[0028] where 1≤i≤m, 1≤j≤n.

[0029] Step 2 Determine the interface of the double B display area

[0030] (...

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Abstract

The present invention discloses a double-B display method of a landing guidance radar. The problem that a target distance, a gliding angle and a heading angle can not be displayed in one display screen at the same time according to an existing radar display method. The technical problem comprises the steps of (1) constructing a radar video matrix according to received radar echo, (2) determining a double-B display area formed by a gliding display area and a heading display area on a radar display device, (3) drawing a gliding distance identification line, a gliding angle identification line, a contour and a standard gliding path line in a gliding display area in the gliding display area, (4) drawing a heading distance identification line, a heading angle identification line and a standard heading path line in the heading display area, and (5) displaying the gliding angle of a target in the gliding display area according to the radar matrix and displaying the heading angle of the target in the heading display area. According to the method, the radar echo information can be completely displayed through the Double-B display area, at the same time multiple auxiliary lines are set, a user can conveniently use the method, and the method can be used for the display terminal of the landing guidance radar.

Description

technical field [0001] The invention belongs to the technical field of radar, and in particular relates to a double-B display method, which can be used in a landing radar display system to display three-dimensional coordinate parameters of a target. Background technique [0002] The display is the display terminal of the radar. According to the different display methods, the display can be divided into P-type display, B-type display and E-type display. [0003] P-type display, which adopts the radial scanning polar coordinate display method, with the radar station as the center of the circle, the true north as the azimuth reference, the radial scanning line direction as the target azimuth, measured in a clockwise direction, the photoelectric size corresponds to the target size, brightness Corresponds to the target strength. This display has a large scanning range and can provide all information on a plane within a 360° range. The disadvantages of this display method are: t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/16G01S13/91
CPCG01S7/16G01S13/913
Inventor 张欣姚宏伟李辉宋智国
Owner SHAANXI CHANGLING ELECTRONICS TECH
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