TY - GEN
T1 - The investigation of the regularization term in the continuous-parameter subspace based optimization method in reconstructing PEC objects
AU - Ye, Xiuzhu
AU - Chen, Xudong
PY - 2011
Y1 - 2011
N2 - This paper investigates the influence of the regularization term on the performance of the continuous-parameter subspace based optimization method in reconstructing perfectly electric conductors (PEC), which provides a theoretical explanation to the choice of regularization term. The number of leading singular values of a current-to-field mapping operator is found to balance the accuracy and the stability of the solution. If the number of leading singular values is chosen as a large number, the noise is amplified in the inverse process. On the other hand, if this parameter is chosen to be a small number, the convergence of the optimization method will be slow. It is found that the regularization term in the PEC SOM behaves similarly as its counterpart in the dielectric case.
AB - This paper investigates the influence of the regularization term on the performance of the continuous-parameter subspace based optimization method in reconstructing perfectly electric conductors (PEC), which provides a theoretical explanation to the choice of regularization term. The number of leading singular values of a current-to-field mapping operator is found to balance the accuracy and the stability of the solution. If the number of leading singular values is chosen as a large number, the noise is amplified in the inverse process. On the other hand, if this parameter is chosen to be a small number, the convergence of the optimization method will be slow. It is found that the regularization term in the PEC SOM behaves similarly as its counterpart in the dielectric case.
KW - PEC
KW - continuous-parameter optimization
KW - inverse scattering
KW - regularization
UR - https://www.scopus.com/pages/publications/80054925530
U2 - 10.1109/CSQRWC.2011.6036914
DO - 10.1109/CSQRWC.2011.6036914
M3 - Conference contribution
AN - SCOPUS:80054925530
SN - 9781424497904
T3 - Proceedings of 2011 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference, CSQRWC 2011
SP - 174
EP - 177
BT - Proceedings of 2011 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference, CSQRWC 2011
T2 - 2011 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference, CSQRWC 2011
Y2 - 27 July 2011 through 30 July 2011
ER -