Title :
An Efficient Implementation of a Robust Phase-Unwrapping Algorithm
Author :
Li, Gang ; Xu, Jia ; Peng, Ying-Ning ; Xia, Xiang-Gen
Author_Institution :
Dept. of Electron. Eng., Tsinghua Univ., Beijing
fDate :
6/1/2007 12:00:00 AM
Abstract :
A robust phase-unwrapping algorithm has been recently proposed and applied to accurately locate fast moving targets in multifrequency antenna array synthetic aperture radar imaging. This algorithm is based on two dimensional (2-D) searching and its complexity may be high. In this letter, we propose an efficient implementation of the robust phase-unwrapping algorithm. We show that the range of the 2-D searching, and therefore the complexity of the robust phase-unwrapping algorithm, can be significantly reduced
Keywords :
antenna arrays; multifrequency antennas; radar antennas; radar imaging; radar tracking; synthetic aperture radar; target tracking; SAR imaging; fast moving target location; multifrequency antenna array; robust phase-unwrapping algorithm; synthetic aperture radar; two dimensional searching; Antenna arrays; Aperture antennas; Cathode ray tubes; Frequency; Multifrequency antennas; Phased arrays; Radar antennas; Robustness; Signal processing algorithms; Synthetic aperture radar; Chinese remainder theorem; phase unwrapping; remainder errors; synthetic aperture radar (SAR);
Journal_Title :
Signal Processing Letters, IEEE
DOI :
10.1109/LSP.2006.890095
