A Beamforming Method for Beidou-3 Mechanically Powered Swept Phased Array Antenna

A phased array antenna and mechanical addition technology, applied in the direction of antennas, electrical components, etc., can solve the problems of small coverage of electronic scanning airspace and inability to meet tracking requirements at the same time

Inactive Publication Date: 2021-03-05
CHINA XIAN SATELLITE CONTROL CENT
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

As the phased array antenna is limited by technical conditions, its electrical scanning airspace coverage is small, and the formed beam cannot meet the tracking requirements of low-elevation angle and high-elevation angle targets at the same time

Method used

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  • A Beamforming Method for Beidou-3 Mechanically Powered Swept Phased Array Antenna
  • A Beamforming Method for Beidou-3 Mechanically Powered Swept Phased Array Antenna
  • A Beamforming Method for Beidou-3 Mechanically Powered Swept Phased Array Antenna

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Embodiment Construction

[0032] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0033] The present invention is a beamforming method for Beidou No. 3 mechanically powered scanning phased array antenna, which specifically includes the following steps:

[0034] Step 1, segment the whole airspace;

[0035] The specific steps of step 1 are:

[0036] Divide the airspace with an elevation angle above 5° and azimuth angle of 360° into 4 airspaces, namely: N airspace with an elevation angle above 5°, azimuth angle -45° to azimuth 45°; elevation angle above 5°, azimuth E airspace within the range of 45° to azimuth 135°; S airspace within the range of 135° to 225° in azimuth above 5° in elevation; 225° in elevation to 315° in azimuth above 5° W airspace.

[0037] Step 2, compare the current area where the satellite is located with the airspace divided in step 1, and determine the orientation of the airspace where the satellite ...

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Abstract

The invention discloses a beam forming method for Beidou No. 3 mechanically powered scanning phased array antenna, which specifically includes the following steps: step 1, dividing the whole airspace; step 2, dividing the current area of ​​the satellite from step 1 Compare the airspace of the satellite to determine the airspace orientation of the satellite; step 3, control the mechanical scanning control lever to drive the plane offset angle δ of the mechanical turntable, so that the electronically scanned phased array antenna points to the airspace orientation determined in step 2; step 4, calculate the mechanical scanning The weight change of the mechanical scanning channel introduced by the control rod bias Step 5, generate the electronic scanning airspace phased array channel weight through the phased array antenna beamforming method Step 6, according to the weight change of the mechanical scanning channel obtained in step 4 Calculate the final phased array channel weight by calculating the electronic scanning airspace phased array channel weight obtained in step 5. The present invention can realize phased array antenna beamforming in the whole airspace.

Description

technical field [0001] The invention belongs to the technical field of beam forming of phased array antennas, and relates to a beam forming method for Beidou-3 mechanically powered scanning phased array antennas. Background technique [0002] Phased array antennas have the advantages of flexible beam pointing, fast beam switching, and multi-beam target tracking. They are widely used in satellite communications, radar detection, satellite navigation and other fields. Due to the limitation of the technical conditions of the phased array antenna, its electric scanning airspace coverage is small, and the formed beam cannot meet the tracking requirements of low-elevation angle and high-elevation angle targets at the same time. Contents of the invention [0003] The purpose of the present invention is to provide a beamforming method for Beidou-3 mechanically powered sweeping phased array antenna. Under the action of the combination of mechanical scanning and electric scanning, t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q3/04H01Q3/36
CPCH01Q3/04H01Q3/36
Inventor 洪宇杨俊武秦明暖张垚王东升申建华谌钊杨再秀郑晓东张峰付树洪张卓
Owner CHINA XIAN SATELLITE CONTROL CENT
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