Yang, Y.-P.Y.-P.YangTing, Y.-Y.Y.-Y.TingYEE-PIEN YANG2018-09-102018-09-102014http://www.scopus.com/inward/record.url?eid=2-s2.0-84880909327&partnerID=MN8TOARShttp://scholars.lib.ntu.edu.tw/handle/123456789/385733Improved angular displacement estimation based on hall-effect sensors for driving a brushless permanent-magnet motorjournal article10.1109/TIE.2013.2247013