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Phase recovery method based on array antenna

A phase recovery, array antenna technology, applied in antenna radiation patterns, complex mathematical operations, etc., can solve problems such as carrier phase loss and inability to fully recover the original signal.

Active Publication Date: 2018-11-20
SHENZHEN UNIV
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Problems solved by technology

[0009] In view of the deficiencies in the above-mentioned prior art, the purpose of the present invention is to provide a phase recovery method to overcome the defects in the prior art that the carrier phase of the incident desired signal is lost and the original signal cannot be completely restored

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Embodiment Construction

[0046] In order to make the object, technical solution and advantages of the present invention more clear and definite, the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0047] In the baseband signal processing operation in the prior art, the traditional baseband signal processing process is as follows: receive the signal through the antenna array of the radio frequency front end, then use the traditional navigation receiver to capture and track the received signal, and then put the The tracked signal is transmitted to the information processing device for information processing. The phase recovery method disclosed in the present invention is a new signal processing method applied in the navigation receiver, which realizes the acquisition and tracking of...

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Abstract

The invention provides a phase recovery method based on an array antenna. A phase to-be-recovered receiving signal is collected through the antenna array, the receiving signal is transmitted to a receiver for phase recovery; and the receiver performs phase recovery on the receiving signal by adopting an iteration interpolation algorithm, and outputs the receiving signal with the recovered phase. Through the method provided by the invention, the phase recovery theory in the optical and image processing field is imported into the array signal processing field, the array antenna is used as the research background, if the antenna array only measured the signal intensity, a phase recovery model based on a measurement value amplitude is established, the phase recovery is performed by utilizing the iteration interpolation algorithm, thereby completely recovering an incident signal.

Description

technical field [0001] The present invention relates to the technical field of array antenna signal processing, in particular to a phase recovery method based on an array antenna. Background technique [0002] Techniques for recovering the complete signal from only its linearly measured intensity / amplitude information, such as the Fourier transform, are commonly referred to as phase recovery. Phase recovery technology is widely used in astronomy, crystallography, optical imaging, microscopy and audio signal processing and other fields. [0003] The phase recovery problem has been widely studied in the past few decades, and a variety of different algorithms have emerged, mainly including the traditional iterative algorithm based on Fourier transform, and the algorithm based on the Transport of Intensity Equation (TIE, Transport of Intensity Equation). , and the phase recovery algorithm based on convex optimization proposed in recent years. [0004] From a mathematical point...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/16G01R29/10
CPCG01R29/10G06F17/16
Inventor 李强黄磊裴灿黄敏赵博张亮周汉飞
Owner SHENZHEN UNIV
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