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Synthetic Aperture Radiometer Based on Single RF Receiver Array

A technology of comprehensive aperture and receiving array, applied in the direction of reflection/re-radiation of radio waves, utilization of re-radiation, direction finders using radio waves, etc., can solve the problems of high system complexity and cost, difficulty in channel consistency control, etc. , to achieve the effect of reducing RF complexity and improving channel consistency

Inactive Publication Date: 2021-01-05
EAST CHINA UNIV OF SCI & TECH +2
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Although the synthetic aperture technology is adopted, in order to achieve higher resolution, many high-sensitivity receiving channels are still required to work in parallel, the complexity and cost of the synthetic aperture radiometer system are relatively high, and the consistency control between channels is difficult

Method used

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  • Synthetic Aperture Radiometer Based on Single RF Receiver Array
  • Synthetic Aperture Radiometer Based on Single RF Receiver Array
  • Synthetic Aperture Radiometer Based on Single RF Receiver Array

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Embodiment Construction

[0014] The preferred embodiments of the present invention are given below in conjunction with the accompanying drawings to describe the technical solution of the present invention in detail.

[0015] Such as Figure 1 to Figure 3 As shown, the synthetic aperture radiometer based on a single radio frequency receiving array of the present invention includes an antenna array, a broadband single radio frequency receiving processing module, a digital multi-channel complex correlation processing module, and an imaging inversion processing module. The feed-in of the spatial signal converts the electromagnetic waves sensed at different positions in the desired frequency band into multiple analog electrical signals, and the broadband single radio frequency receiving and processing module completes the digital reception of the multiple analog electrical signals to form multiple complex baseband signals. The single radio frequency receiving and processing module is different from the tra...

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Abstract

The invention discloses a synthetic aperture radiometer based on a single radio frequency receiving array, which relates to a microwave imaging system. It consists of an antenna array, a broadband single radio frequency receiving processing module, a digital multi-channel complex correlation processing module and an imaging inversion processing module. It uses a single radio frequency receiving array technology to achieve the effect of multiple parallel radio frequency channels equivalently with one broadband radio frequency channel, which can not only effectively reduce the radio frequency complexity, but also achieve better channel consistency.

Description

technical field [0001] The invention relates to a synthetic aperture radiometer, in particular to a synthetic aperture radiometer based on a single radio frequency receiving array. Background technique [0002] The synthetic aperture radiometer adopts interferometric imaging technology, and uses multiple sparsely arranged small antennas to synthesize an equivalent large antenna aperture, which provides an effective technical means for breaking through the spatial resolution bottleneck of the microwave radiometer. , Hidden target detection has a wide range of application value. Although the synthetic aperture technology is adopted, in order to achieve higher resolution, many high-sensitivity receiving channels are still required to work in parallel, the complexity and cost of the synthetic aperture radiometer system are relatively high, and the consistency control between channels is difficult. Contents of the invention [0003] The technical problem to be solved by the pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S13/90
CPCG01S13/9023G01S3/02
Inventor 凌小峰栾英宏郭松徐红新冯剑锋汪楠
Owner EAST CHINA UNIV OF SCI & TECH
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