TY - CPAPER T1 - Comparison of Time domain Control Law for a Piston wave Absorber A1 - Clement,Alain A1 - Maisondieu,Christophe AD - Ecole centrale Nantes, France UR - https://archimer.ifremer.fr/doc/00203/31437/ N2 - In this paper, we suggest two causal non-ideal approximations of this ideal non-causal controller. These time-domain absorbing relations differ in whether or not one knows a dominant frequency of the incident wave train to be absorbed. Their performances are compared to the absorption efficiency of the low frequency asymptotic Sommerfeld relation. Preliminary results of this study were already presented in Maisondieu and al. (1993). Y1 - 1993 CY - 1993 European Wave Energy Symposium. 21 - 24 July 1993, Scotland, UK. SO - 1993 European Wave Energy Symposium. Proceedings of an International Symposium held in Edinburgh, Scotland. 21 - 24 July 1993. 1994. ISBN 0-903640-84-8. Publication No EUR 15571 EN pp. 117-122 ID - 31437 ER -