Antenna Theory: Analysis and Design
Antenna Theory: Analysis and Design
Fast communication: Advantages of nonuniform arrays using root-MUSIC
Signal Processing
IEEE Transactions on Image Processing
Passive localization of mixed near-field and far-field sources using two-stage MUSIC algorithm
IEEE Transactions on Signal Processing
Estimating two-dimensional frequencies by matrix enhancement andmatrix pencil
IEEE Transactions on Signal Processing
Estimation of frequencies and damping factors by two-dimensionalESPRIT type methods
IEEE Transactions on Signal Processing
Performance analysis of higher order ESPRIT for localization ofnear-field sources
IEEE Transactions on Signal Processing
Attributed scattering centers for SAR ATR
IEEE Transactions on Image Processing
Hi-index | 0.08 |
A method is presented for estimating the three-dimensional (3-D) scattering centers of an object under spherical wave illumination. A novel approximation of the distance from the antenna to each scattering center is first formulated, which provides an approach for compensating for the spherical wavefront curvature. Additionally, the approximation transforms the near-field problem into virtual far-field problem. A far-field 3-D ESPRIT type algorithm is also presented and applied to estimating the virtual far-field scattering centers. Finally, the near-field scattering centers are obtained by using the compensation relations. Simulation results show the performance improvement of the proposed method compared with the conventional far-field method.