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Method for detecting high-speed moving target by mechanical conical scanning beams

A conical scanning, high-speed moving technology, applied in the field of radar detection, can solve the problems of radar antenna, feeder design difficulty, loss of antenna index, etc., and achieve the effect of improving scanning coverage, reducing radar cost and reducing cost.

Active Publication Date: 2013-08-14
无锡立洋电子科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, if the beam deviates from the normal direction of the antenna, if the angle is too large, there will be a certain loss of some indicators of the antenna, and it will bring certain difficulties to the design of the radar antenna and feeder

Method used

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  • Method for detecting high-speed moving target by mechanical conical scanning beams
  • Method for detecting high-speed moving target by mechanical conical scanning beams
  • Method for detecting high-speed moving target by mechanical conical scanning beams

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Embodiment Construction

[0033] The present invention will be further described below in conjunction with specific drawings and embodiments.

[0034] Such as figure 1 Shown is the main lobe diagram of the needle beam of the existing mechanical scanning radar. The beam 2 of the existing mechanical scanning radar is consistent with the direction of the antenna normal pointing to the axis F of the radar, and the width a of the beam 2 is very narrow; but this beam 2 has good directivity, which is compatible with early warning and search. Compared with the wider beam 2 of the radar, its angle measurement performance is better, and a farther target can be detected with a smaller transmission power. Since the relative position of the beam 2 of the existing mechanical scanning radar and the antenna normal pointing to F is fixed, the beam 2 of the radar antenna is scanned in space by using the movement of the antenna 1. Since the movement speed of the antenna 1 is limited, therefore, The antenna transmission...

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Abstract

The invention relates to a method for detecting a high-speed moving target by mechanical conical scanning beams. The method provided by the invention comprises the following steps of: step 1, providing a mechanical scanning radar; step 2, enabling beams of the mechanical scanning radar to direct an axis F bypassing a normal of an antenna and do a high-speed conical scanning movement, wherein the width of the beam is a and the included angle between the beam and the normal of the antenna which is directed towards the axis F is b; step 3, controlling the antenna of the mechanical scanning radarto do orientation movement and pitching movement and simultaneously carrying out the orientation movement, the pitching movement and the high-speed conical scanning movement on the scanning beams of the mechanical scanning radar, and detecting the high-speed moving target of the mechanical scanning radar in the range of the scanning beams; and step 4, feeding back a detection signal obtained by scanning the high-speed moving target to radar subsystems, such as servo, signal processing, terminal and the like. and analyzing the detection signal through the radar to finish the detection of the high-speed moving target. The method provided by the invention has the advantages of high detection precision, high detection speed, good reliability and wide application range.

Description

technical field [0001] The invention relates to a scanning method for radar detection of a high-speed moving target, in particular to a method for realizing detection of a high-speed moving target with a mechanical conical scanning beam, which belongs to the technical field of radar detection. Background technique [0002] In the field of radar detection, radars can be divided into two types according to the scanning method of the beam (the beam refers to the main lobe beam in the radar antenna pattern, the same below): conventional mechanical scanning radar and phased array radar. The relative position of the antenna beam and the antenna pointing of the conventional mechanical scanning radar is often fixed, and it uses the movement of the antenna to complete the scanning of the beam of the radar antenna in space. Phased array radar is scanned by electronically controlling the pointing change of the radar beam, which is called electrical scanning. It uses "phase shifters" t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S13/04
Inventor 张鹿平
Owner 无锡立洋电子科技有限公司
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