Estimation of Scattering Centers by Improved Two-Dimensional ESPRIT Type Method via a TLS Approach

A new approach is proposed to estimate the two-dimensional (2-D) scattering centers. The approach combines the idea of Total least squares (TLS) with the 2-D ESPRIT type method. Numerical results show that the approach provides lower estimation errors than the 2-D ESPRIT type method and the Matrix enhancement and matrix pencil (MEMP) method with a new pairing procedure. The approach is successfully used for estimating the scattering centers for real radar data.