Accurate Micro-Doppler Analysis by Doppler and <inline-formula><tex-math notation="LaTeX">$k$</tex-math></inline-formula>-Space Decomposition for Millimeter Wave Short-Range Radar
Abstrak
This study presents a highly accurate range and Doppler-velocity extraction scheme for millimeter-wave (MMW) short-range sensing using the Doppler-velocity and <inline-formula><tex-math notation="LaTeX">$k$</tex-math></inline-formula>-space decomposition in a weighted kernel density (WKD) scheme. The WKD method has been developed as one of the most promising micro-Doppler analysis methods for human motion; however, an original WKD method requires a highly decomposed range profile to achieve its maximum performance. As the main contribution of this article, the proposed method introduces the Doppler velocity and k-space decomposition via the 4-D fast Fourier-transform process, which significantly improves the range resolution and reduces computational complexity. The numerical and experimental results show that the proposed method achieves significantly higher range and velocity accuracy and resolution, as well as higher noise-robustness at a lower computational cost.
Topik & Kata Kunci
Penulis (2)
Takeru Ando
Shouhei Kidera
Akses Cepat
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- 2022
- Sumber Database
- DOAJ
- DOI
- 10.1109/JSTARS.2022.3158661
- Akses
- Open Access ✓