What is it about?
We use the second-order term in the phase function of a rotating target and the standard 3D interferometric ISAR technique to estimate the LOS component of the total rotation vector, and hence the complete rotational velocity vector itself.
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Why is it important?
An accurate estimate of this velocity vector leads to an accurate estimate of the true 3D size of the target, and its tracking, independent of radar viewing angle, which is important automatic recognition of the target.
Perspectives
We believe this is the first the second-order phase term is used for this application. One of the advantages of using a single Interferometric radar system, compared to other spatially distributed system, is the convenience of deployment.
Hai-Tan Tran
Read the Original
This page is a summary of: Estimation of the Total Rotational Velocity of a Non-Cooperative Target with a High Cross-Range Resolution 3D InISAR System , IET Radar Sonar & Navigation, January 2017, the Institution of Engineering and Technology (the IET),
DOI: 10.1049/iet-rsn.2016.0462.
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