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Integrated position measurement and adjustment device and method

An adjustment device and adjustment mechanism technology, applied in the field of planar array antennas, can solve the problems of poor antenna beam pointing accuracy, antenna unit phase error, increased side lobe level, etc. effect of rail operation requirements

Active Publication Date: 2021-08-13
SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] The flatness of the radar array is a key index in the design of the planar array antenna. It is the deviation between the actual reflection surface of the antenna array and the ideal reflection surface. The level increases, which leads to the deterioration of the beam pointing accuracy of the antenna

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  • Integrated position measurement and adjustment device and method

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Embodiment Construction

[0036] Embodiments of the present invention will be described in detail below. It should be emphasized that the following description is only exemplary and not intended to limit the scope of the invention and its application.

[0037] refer to Figure 1 to Figure 7 , in one embodiment, the integrated position measurement and adjustment device is used to adjust the array installation position of the planar array antenna on the track, including the adjustment mechanism module 1, the optical module 2, the PSD signal conversion module 3 and the signal processing and control Module 4, the adjustment mechanism module 1 is coupled to the array installation structure of the planar array antenna to adjust the installation position of the array, the adjustment mechanism module 1 is provided with a light source 5, and the adjustment mechanism module 1 performs position adjustment Drive the light source 5 to move during the action, the optical module 2 is configured to project the optica...

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Abstract

An integrated position measurement and adjustment device and method, including an adjustment mechanism module, an optical module, a PSD signal conversion module, and a signal processing and control module, wherein the adjustment mechanism module executes the adjustment of the installation position of the array, and the adjustment mechanism module is provided with a light source for performing When the position is adjusted, the light source is driven to move. The optical module projects the optical signal of the light source to the PSD signal conversion module. The PSD signal conversion module converts the optical signal into a current signal. The moving distance information is used to control the adjustment mechanism module to adjust the installation position of the front. The device can adjust the flatness of a large space planar array antenna in real time, accurately and efficiently on the orbit, overcome the influence of solar light pressure and temperature alternation in the space environment on the deformation of the antenna, and ensure that the plane accuracy of the antenna meets the requirements. The device has a compact structure and high operational reliability, and is well suited for on-orbit operation requirements.

Description

technical field [0001] The invention relates to the field of planar array antennas, in particular to an integrated position measurement and adjustment device and method. Background technique [0002] The flatness of the radar array is a key index in the design of the planar array antenna. It is the deviation between the actual reflection surface of the antenna array and the ideal reflection surface. The level increases, resulting in poor beam pointing accuracy of the antenna. [0003] At present, space radar array antennas are mainly deployed, the measurement of flatness is done on the ground, and the adjustment of flatness is realized through deployable mechanisms and structures, that is, the measurement device and the adjustment device are separated. Different from the ground environment, the space radar array is in a state of weightlessness, and its flatness is easily affected by the space environment, such as solar light pressure, large-scale temperature changes, etc., ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S13/02G01S13/06G01S7/40
CPCG01S7/4004G01S13/02G01S13/06G01S2013/0245
Inventor 高学海王学谦刘厚德朱晓俊肖靖
Owner SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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