NDLI: Altitude ambiguity suppression method based on dual-frequency interfering and multi-frequency averaging for sparse baseline TomoSAR

Content Provider	IET Digital Library
Author	Li, Mofan Xiang, Yin Chen, Xinliang Wang, Yan Lu, Yiling Ding, Zegang
Abstract	Tomography SAR (TomoSAR) imaging can achieve three-dimensional (3D) imaging, which is significant for urban 3D mapping. When the baseline of TomoSAR is sparse, the scattering centres of several different altitudes in the same resolution unit are aliased together, which affects the accuracy of TomoSAR imaging. To solve this problem, an altitude ambiguity suppression method based on dual-frequency interfering and multi-frequency averaging is proposed. Firstly, dual-frequency interfering is used to obtain the radar cross-section (RCS) of targets and the sum of the results of the cross interference between targets and ambiguities in different positions. Then multi-frequency averaging is used to suppress the power of the cross-interference, and finally the RCS of target is accurately obtained. Simulation results verify the effectiveness of the proposed method.
Starting Page	1194
Ending Page	1196
Page Count	3
ISSN	00135194
Volume Number	55
e-ISSN	1350911X
Issue Number	Issue 22, Oct (2019)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/el/55/22
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/el.2019.2198
Journal	Electronics Letters
Publisher Date	2019-09-19
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Altitude Ambiguity Suppression Method Computer Vision And Image Processing Technique Cross Interference Dual-frequency Interfering Electromagnetic Compatibility Geography And Cartography Computing Geophysical Image Processing Geophysical Technique And Equipment Image Resolution Instrumentation And Technique For Geophysical, Hydrospheric And Lower Atmosphere Research Interference Interference Suppression Multifrequency Averaging Optical, Image And Video Signal Processing Radar Cross Section Radar Equipment Radar Imaging Radar Resolution Stereo Image Processing Synthetic Aperture Radar System And Application Three-dimensional Imaging Tomography Tomography SAR Imaging TomoSAR Imaging Urban 3D Mapping
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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