1. BISITE Research GroupEdificio I+D+iUniversity of SalamancaSalamanca37008Japan
2. Faculty of Robotics & Design EngineeringDepartment of System Design EngineeringOsaka Institute of TechnologyAsahi‐ku OhmiyaOsaka535‐8585Japan
3. School of Electrical and Electronic EngineeringUniversity College DublinDublinIreland