Title :
A Novel Method for Reconstructing 3D Scattering Centers Based on Multiple HRR Profiles and Its Performance Bounds
Author :
Jianxiong, Zhou ; Hongzhong, Zhao ; Qiang, Fu
Author_Institution :
ATR Lab., Nat. Univ. of Defense Technol., Changsha
Abstract :
Reconstructing three-dimensional scattering centers of radar targets without knowledge of viewing angles or relative radar-target motion is investigated. The performance bounds are deduced in which the parameter constraints and rotatory ambiguities are specially treated. We propose a novel method based on the signal subspace invariance in multiple one-dimensional projection sequences, which greatly outperforms in both computing complexity and reconstructing accuracy. Simulations show that our method approaches the Cramer-Rao lower bounds at ordinary SNRs
Keywords :
image resolution; radar imaging; radar resolution; 3D scattering center reconstruction; Cramer-Rao lower bound; high range resolution; multiple HRR profiles; multiple one-dimensional projection sequences; parameter constraint; radar targets; rotatory ambiguity; signal subspace invariance; Data mining; Data models; Image reconstruction; Image resolution; Radar imaging; Radar scattering; Radar signal processing; Reconstruction algorithms; Signal resolution; Spatial resolution; 3D reconstruction; high resolution radar; performance bounds; scattering center;
Conference_Titel :
Radar, 2006. CIE '06. International Conference on
Conference_Location :
Shanghai
Print_ISBN :
0-7803-9582-4
Electronic_ISBN :
0-7803-9583-2
DOI :
10.1109/ICR.2006.343444
