Journal
REMOTE SENSING
Volume 14, Issue 7, Pages -Publisher
MDPI
DOI: 10.3390/rs14071548
Keywords
micro-Doppler; radar data cube; parameter estimation; precession targets
Categories
Funding
- National Natural Science Foundation of China [61701528]
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This paper proposes an algorithm for parameter estimation of precession cone-shaped targets based on micro-Doppler (m-D) information. By combining the binary mask method with the range-Doppler sequence, the range-frequency-time radar data cube (RDC) can be extracted for parameter estimation. The algorithm has the advantage of conducting in-depth research on m-D parameter estimation in a three-dimensional domain.
A radar echo signal received from a cone-shaped target with precession contains micro-Doppler (m-D) information from different effective scattering centers. By taking full advantage of the m-D information, this paper proposes a parameter estimation algorithm for precession cone-shaped targets based on the range-frequency-time radar data cube (RDC). We build scattering center models of precession cone-shaped targets with the occlusion effect. The Binary Mask method is first utilized to obtain a high-resolution range-Doppler (RD) sequence. On this basis, the range-frequency-time RDC can be extracted from the RD sequence. In order to approach the actual case, we discuss the parameter estimation algorithm under different radar lines-of-sight (LOS). The most attractive attribute of this algorithm is that it can conduct in-depth research on m-D parameter estimation from a three-dimensional (3D) domain. Finally, the experimental results illustrate the effectiveness of the proposed method.
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