A Novel Method for 3-D Millimeter-Wave Holographic Reconstruction Based on Frequency Interferometry Techniques

A novel interferometry technique is proposed and introduced into active millimeter-wave (MMW) holography. Different from optical holographic interferometry, which relies on a reference light source or the interferometric synthetic aperture radar where data from apertures of different elevations are...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on microwave theory and techniques 2018-03, Vol.66 (3), p.1579-1596
Main Authors: Gao, Jingkun, Qin, Yuliang, Deng, Bin, Wang, Hongqiang, Li, Xiang
Format: Article
Language:English
Subjects:
3-D reconstruction
Algorithm design and analysis
Algorithms
Apertures
Computer simulation
Computing time
Frequency interferometry
Holographic interferometry
Holography
Image reconstruction
Image resolution
Interferometric synthetic aperture radar
Interferometry
Millimeter waves
millimeterwave (MMW) imaging
Optical interferometry
Signal processing algorithms
synthetic aperture imaging
Synthetic aperture radar
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A novel interferometry technique is proposed and introduced into active millimeter-wave (MMW) holography. Different from optical holographic interferometry, which relies on a reference light source or the interferometric synthetic aperture radar where data from apertures of different elevations are interfered, data are interfered between different frequencies in the proposed method. Higher ranging accuracy is achieved, since the residual phase information which is always neglected is utilized by the interferometry manner. The proposed method also avoids interpolations in the traditional MMW holographic imaging algorithms, by which the computational complexity can be reduced. First, theoretical derivation of the 3-D reconstruction method based on frequency interferometry is presented, and detailed algorithms considering noise resistance and phase unwrapping are designed. Then, numerical simulations are conducted to validate our methods. Different aspects of the proposed algorithms' performance are analyzed and compared with previous methods. Finally, laboratory experiments are carried out. Both the simulation and experimental results validate the superiority of our method on reconstruction accuracy and computational efficiency.
ISSN:0018-9480
1557-9670
DOI:10.1109/TMTT.2017.2772862