System for imaging millimeter wave arc-scanned by array antenna

A millimeter-wave imaging and array antenna technology, which is applied in radio wave measurement systems, radio wave reflection/re-radiation, and re-radiation, can solve the problems of long imaging time, low resolution, and poor image quality, and achieve structural The result of simple design, high image quality and short imaging time

Active Publication Date: 2012-07-04
BEIJING HUAHANG HAIYING NEW TECH DEV
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  • Abstract
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  • Claims
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Problems solved by technology

[0005] Using the existing millimeter-wave close-range imaging method, the image quality is poor, the resolution is low, and the imaging time i

Method used

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  • System for imaging millimeter wave arc-scanned by array antenna
  • System for imaging millimeter wave arc-scanned by array antenna
  • System for imaging millimeter wave arc-scanned by array antenna

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Embodiment Construction

[0028] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0029] The millimeter-wave imaging system for array antenna arc scanning of the present invention includes: 2 transmitting antenna arrays, 2 receiving antenna arrays, antenna array disc support, transmitting module, receiving module, servo control module, frequency synthesis module, and delay module , signal processing module and display control module; where:

[0030] The antenna array disk support includes a rotatable central shaft and a metal circular disk driven by the central shaft to rotate. The radius of the circular disk is between 0.5-2 meters.

[0031] Fix 2 sets of transmitting antenna arrays and receiving antenna array pairs with screws on the edge of the antenna array disc, wherein the interval between each group of transmitting antenna arrays and receiving antenna array pairs is 0.5-5cm, the preferred interval is 2cm, more prefe...

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Abstract

The invention relates to a system for imaging millimeter wave arc-scanned by an array antenna. The millimeter wave imaging system comprises an antenna array disc support, a servocontrol module, a frequency synthesis module, a transmitter module, two transmitting antenna arrays, two receiving antenna arrays, a receiving module, a delayed module, a signal processing module and a display and controlmodule, wherein the servocontrol module controls a driven shaft of a motor to rotate at a sinusoidal speed rate and simultaneously controls and detects the rotation angle of the antenna array disc support to lead the antenna array disc support to rotate from zero to M degrees in a clockwise manner, wherein 100 degrees <=M <=170 degrees; and the transmitting antenna arrays radiate a radio-frequency signal to an objective surface and the radio-frequency signal is reflected so as to be received by the receiving antenna arrays, the receiving module processes the an echo signal to form an intermediate frequency echo signal and then sends to the signal processing module so as to carry out three-dimensional imaging treatment on the signal, and three-dimensional image data of an object is obtained and is transferred to the display and control module. The millimeter wave imaging system provided by the invention has the beneficial effects of simple design, low cost, high picture quality, high resolution and short imaging time.

Description

technical field [0001] The invention relates to the technical field of millimeter-wave imaging, in particular to a millimeter-wave imaging system for arc-scanning array antennas. Background technique [0002] Today, with the development of mmWave technology and imaging technology, there are many applications combining these two technologies. Millimeter-wave imaging technology has mature applications in many fields, such as map remote sensing, military detection, millimeter-wave synthetic aperture radar imaging, and long-distance detection of ground, sea and air targets. With the development of science and technology, millimeter-wave devices are basically mature at home and abroad, and can be used in large-scale and low-cost applications. [0003] With the development of millimeter wave imaging technology, its application in various industries has gradually matured, and its application in short-range imaging detection is basically mature, which can realize the detection of o...

Claims

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Application Information

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IPC IPC(8): G01S13/89
Inventor 陈晔张远航张炳煌张永旸余华章
Owner BEIJING HUAHANG HAIYING NEW TECH DEV
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