TY - GEN
T1 - A fast and robust method for target and background estimation in RCS measurements based on 'hyperaccurate' algebraic circle fit
AU - Yang, Xiaolin
AU - Quan, Shaohui
AU - Liu, Qinghui
PY - 2010
Y1 - 2010
N2 - The sample data points, which are obtained in radar cross section (RCS) measurement, will distribute theoretically on a circle when the target moving along the direction of the illuminating plane wave. The radius of the circle represents the target signal and the center of the circle represents the background signal. Based on theoretical analysis and numerical simulation, we have implemented the fast 'hyperaccurate' algebra circle fitting algorithms to fit circles to measurement data points. At the same time, a robust least-median-of-squares method has been implemented to eliminate the outliers. According to the fitting accuracy requirement of the target and background, the sampling number and the sampling range are determined. Two different spheres are measured with this algorithm in Compact Antenna Test Range (CATR) and their target signals and background signals are well separated, which improves the measurement accuracy.
AB - The sample data points, which are obtained in radar cross section (RCS) measurement, will distribute theoretically on a circle when the target moving along the direction of the illuminating plane wave. The radius of the circle represents the target signal and the center of the circle represents the background signal. Based on theoretical analysis and numerical simulation, we have implemented the fast 'hyperaccurate' algebra circle fitting algorithms to fit circles to measurement data points. At the same time, a robust least-median-of-squares method has been implemented to eliminate the outliers. According to the fitting accuracy requirement of the target and background, the sampling number and the sampling range are determined. Two different spheres are measured with this algorithm in Compact Antenna Test Range (CATR) and their target signals and background signals are well separated, which improves the measurement accuracy.
UR - https://www.scopus.com/pages/publications/79951666429
U2 - 10.1109/ISAPE.2010.5696542
DO - 10.1109/ISAPE.2010.5696542
M3 - 会议稿件
AN - SCOPUS:79951666429
SN - 9781424469062
T3 - 2010 9th International Symposium on Antennas Propagation and EM Theory, ISAPE 2010
SP - 622
EP - 625
BT - 2010 9th International Symposium on Antennas Propagation and EM Theory, ISAPE 2010
T2 - 2010 9th International Symposium on Antennas Propagation and EM Theory, ISAPE 2010
Y2 - 29 November 2010 through 2 December 2010
ER -