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Multi-array-element single-channel interference angle measurement device

A single-channel, multi-array element technology, applied in measurement devices, radio wave measurement systems, radio wave reflection/re-radiation and other directions, can solve the problems of multiple hardware resources, increase measurement errors, etc., to reduce hardware configuration, suppress Measurement error, the effect of meeting the requirement of simultaneity

Active Publication Date: 2012-11-21
XIAN INSTITUE OF SPACE RADIO TECH
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0003] Existing interferometric angle measurement devices perform two-dimensional interferometric angle measurement through multiple array elements and multiple channels, which requires more hardware resources, and the channel phase error will increase the measurement error

Method used

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Embodiment Construction

[0018] The embodiments of the present invention will be further introduced below in conjunction with the accompanying drawings.

[0019] Such as figure 1 Shown is a schematic diagram of an embodiment of the present invention, including an antenna array, a multi-select switch, a waveguide, an angle-measuring receiving channel and a processing unit. The antenna array adopts a plurality of receiving antennas ( ), and according to the requirement of unambiguous baseline, the layout forms an L-shaped antenna array. The L-shaped array is composed of an azimuth baseline and an elevation baseline. Both the azimuth baseline and the elevation baseline are composed of multiple antennas. The azimuth baseline and the elevation baseline are orthogonal to each other. The two baselines intersect at one point, and the intersection points share the same receiving antenna.

[0020] further as figure 2 As shown, in the current rendezvous and docking project, an L-array scheme composed of 5 rec...

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Abstract

The invention discloses a multi-array-element single-channel interference angle measurement device which comprises an antenna array. The antenna array comprises a plurality of receiving antennas, an angle measurement receiving channel and a processing unit, the receiving antennas form azimuth baselines and pitch baselines respectively, the angle measurement receiving channel converts radio-frequency signals output by the receiving antennas in the antenna array into intermediate frequency signals and outputs the intermediate frequency signals to the processing unit, and the processing unit determines phase differences among the receiving antennas at the same receiving time in the antenna array according to sampling signals of the intermediate frequency signals, obtains azimuth angles of the azimuth baselines and pitch angles of the pitch baselines respectively and outputs the azimuth angles and the pitch angles. According to the multi-array-element single channel interference angle measurement device, single-channel receiving and two-dimensional angle measurement of the antenna array are achieved.

Description

technical field [0001] The invention relates to a multi-element single-channel interference angle measuring device. Background technique [0002] The main task of the third phase of the lunar exploration project is to obtain lunar soil from the moon and return it to the earth. Among them, the ascender in the probe will rendezvous and dock with the orbiter after returning to the lunar orbit from the moon. Lunar orbital rendezvous and docking microwave radar is an important device for relative measurement and communication in the middle and long distances of docking. The lunar orbit rendezvous and docking microwave radar measures the distance between the ascender and the orbiter, and the azimuth and elevation angles of the ascender relative to the orbiter by establishing a two-way link between the orbiter and the ascender. Space position information such as the distance, azimuth, and pitch angle of the ascender relative to the orbiter is the basis for implementing space rend...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S13/68
Inventor 钟兴旺王登峰杨瑞强踪念科严琪蔡春贵张蓬
Owner XIAN INSTITUE OF SPACE RADIO TECH
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