Open AccessThree‐dimensional reconstruction of space rotating target based on narrow‐band radar networks
Author(s) -
Wang Chao,
Wen Shu L.,
Ye Chun M.
Publication year - 2019
Publication title -
the journal of engineering
Language(s) - English
Resource type - Journals
ISSN - 2051-3305
DOI - 10.1049/joe.2019.0344
Subject(s) - radar , computer science , doppler effect , constraint (computer aided design) , computer vision , artificial intelligence , projection (relational algebra) , plane (geometry) , back projection , doppler radar , algorithm , physics , mathematics , geometry , telecommunications , astronomy
The micro‐motion of space target is an important signature for classification and recognition, which has received great attention. Based on the micro‐Doppler signals from narrow‐band radar networks, this study proposes a three‐dimensional reconstruction method of space rotating target. First, the rotational plane projection model and the three‐dimensional structure construction model are built based on the micro‐Doppler analysis of rotating targets. Then, the rotational axis of the target is accurately estimated by exploiting the relationship of micro‐Doppler features of sub‐radars in the radar networks. Finally, under the constraint of the physical shape of a cone target, the target with arbitrary number scatters can be reconstructed by setting a cost function. Experiments verify the validity and accuracy of the proposed method.