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Compact range measuring system

A measurement system and compact field technology, applied to radio wave measurement systems, instruments, etc., can solve the problems that spherical waves are easily affected by various noises, spherical wave attenuation, etc., to improve effective utilization, reduce amplitude and phase fluctuations, reduce interference effect

Active Publication Date: 2021-08-24
BEIJING UNIV OF POSTS & TELECOMM
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, long-distance transmission will cause severe attenuation of spherical waves, and spherical waves are also susceptible to various noises

Method used

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Embodiment Construction

[0029] Next, the technical solutions in the embodiments of the present invention will be apparent from the embodiment of the present invention, and it is clearly described, and it is understood that the described embodiments are merely embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, those of ordinary skill in the art will belong to the scope of the present invention based on all other embodiments obtained in the present application.

[0030] Since the antenna measurement is applied to the application, the transmission distance of the wave is large, making the antenna measurement easily generate errors. In order to solve this technical problem, embodiments of the present invention provide a tightening field measurement system.

[0031] The tightening field measurement system provided by the embodiment of the present invention will be described in detail by the specific embodiments.

[0032] In one embodiment of th...

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Abstract

The embodiment of the invention provides a compact range measurement system, and relates to the technical field of radar signal processing, a feed source and an auxiliary reflecting surface are respectively located at two sides of a main reflecting surface, the feed source is located at the focus position of the auxiliary reflecting surface, the horizontal distance between the feed source and the auxiliary reflecting surface in a first coordinate system is a first preset distance, and the feed source is used for emitting spherical waves; the auxiliary reflecting surface is provided with a sawtooth-shaped edge, the horizontal distance between the auxiliary reflecting surface and the main reflecting surface in the second coordinate system is a second preset distance, and the auxiliary reflecting surface is used for receiving the spherical waves and reflecting the spherical waves, so that the spherical waves continue to be transmitted in the direction after reflection; and the main reflecting surface is provided with a sawtooth-shaped edge and is used for receiving the spherical wave reflected by the auxiliary reflecting surface, reflecting the received spherical wave, converting the spherical wave into an approximate plane wave and emitting the approximate plane wave. When the system provided by the embodiment of the invention is used for measuring the antenna, errors during antenna measurement can be reduced.

Description

Technical field [0001] The present invention relates to the field of radar signal processing, and more particularly to a tightening field measurement system. Background technique [0002] Far field measurement is the mainstream method of the current antenna measurement. The far field measurement under ideal conditions is to be tested by the transmitting antenna emission to the antenna, thereby obtaining data to be tested, and complete antenna measurement. However, since there is no planar wave, the far field measurement is usually adjusted to adjust the distance between the transmit antenna and the antenna to be tested, so that the spherical wave is transmitted after being transmitted after the emission antenna is transmitted, irradiated into the standby When the antenna is measured, it can be considered approximately planar waves. However, long-distance transmission can cause severe decay in spherical waves, and spherical waves are also susceptible to various noise effects. [0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/40
CPCG01S7/4004
Inventor 王卫民陈雨夏吴永乐
Owner BEIJING UNIV OF POSTS & TELECOMM
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