Low altitude target monitoring method

A low-altitude target, duty cycle technology, applied in the field of surveillance, can solve the problems of slow speed, small size, and inflexible beam pointing, and achieve the effect of slow speed, low height and small size

Active Publication Date: 2017-09-08
ANHUI SUN CREATE ELECTRONICS
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AI Technical Summary

Problems solved by technology

[0004] The beam scanning of ordinary radar is to realize the mechanical scanning by the rotation of the radar antenna. The beam pointing in this way is inflexible, and it is impossible to accurately monitor the low-altitude, slow-speed, and small-sized targets in the low-altitude area.

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Embodiment Construction

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0035] In order to realize the present invention, the phased array radar that adopts is as figure 1 As shown, the radar includes an antenna feeder subsystem 10, a receiving subsystem 20, a signal processing subsystem 30, a beam control subsystem 40, a turntable servo subsystem 50, a terminal subsystem 60, and a power supply subsystem 70; the data between each system Information is transmitted through a network switch. Low altitude refers to targets below 3 kil...

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Abstract

The present invention relates to a monitoring method, in particular to a low altitude target monitoring method. According to the present invention, a phased array radar antenna of which the pre-elevation angle is plus 15 degrees is used, in each pulse cycle of the antenna azimuth mechanical scanning, 8 beams of progressive full-covering electric scanning radar wave pulse signals of which the pre-elevation angles are between minus 15 degrees and plus 15 degrees are emitted out orderly relative to the normal direction of the phased array radar antenna, and according to an echo signal of a radar, the space coordinates of an object relative to the radar are detected. The monitoring method of the present invention can search and track the aerodynamic objects in the low-altitude airspace of which the altitudes are 3000 meters or less, such as the miniature airplanes, the paragliders, the unmanned aerial vehicles, etc., realizes the low-altitude blind compensation to the remote air traffic management primary radar, and forms the three-coordinate motion situation of the low-altitude objects.

Description

technical field [0001] The invention relates to a monitoring method, in particular to a low-altitude target monitoring method. Background technique [0002] With the development of drone technology, there are more and more consumer drone products for the general public, and the flight threshold is getting lower and lower. Typical "low, slow, and small" targets such as powered delta wings, gliders, and sounding balloons, including consumer drones, can easily form "black flights" and pose a threat to important places including airports . And these "low, slow, small" targets are often in the blind spots of large radars. Surveillance of drones is still a worldwide problem. Internationally, radar detection, photoelectric equipment detection, acoustic detection and other corresponding means are usually used, but there are no related products in China. [0003] Phased array radar is a phase-controlled electronically scanned array radar, which uses a large number of individually ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S13/58G01S13/50G01S13/72G01S7/41G01S7/282G01S7/285
CPCG01S7/282G01S7/285G01S7/415G01S13/50G01S13/58G01S13/72
Inventor 吴俊任翔徐鹏来陈龙杨琳陈娟陶少杰徐明飞
Owner ANHUI SUN CREATE ELECTRONICS
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