A Method of Detecting High-Speed ​​Moving Targets Using Mechanical Cone Scanning Beams

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

Active Publication Date: 2011-12-07
无锡立洋电子科技有限公司
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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 certai

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  • A Method of Detecting High-Speed ​​Moving Targets Using Mechanical Cone Scanning Beams
  • A Method of Detecting High-Speed ​​Moving Targets Using Mechanical Cone Scanning Beams
  • A Method of Detecting High-Speed ​​Moving Targets Using Mechanical Cone 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 in which the antenna normal of the radar points to the axis F, and the width a of the beam 2 is very narrow; however, this beam 2 has good directivity, and is compatible with warning and search types. Compared with the wider beam 2 of the radar, its angle measurement performance is better, and the farther target can be detected with a smaller transmission power. Because the beam 2 of the existing mechanical scanning radar is often fixed relative to the antenna normal to F, the beam 2 of the radar antenna is scanned in space by using the movement of the antenna 1. As the movement speed of the antenna 1 is limited, therefore, The antenna transmission system of the e...

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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 detecting high-speed moving targets by radar, in particular to a method for realizing detection of high-speed moving targets with a mechanical conical scanning beam, which belongs to the technical field of radar detection. Background technique [0002] In the field of radar detection, radar can be divided into two types from 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 antenna beam of the conventional mechanical scanning radar is often fixed in relation to the antenna pointing. It uses the movement of the antenna to complete the scanning of the radar antenna beam in space. The phased array radar uses an electrical method to control the direction of the radar beam to scan. This method is called electrical scanning. It uses a "phase shifter" to achieve radar beam rotation. ...

Claims

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Application Information

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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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