Combining the wavelet transform with a phase-lead compensator to a respiratory motion compensation system with an ultrasound tracking technique in radiation therapy. - Chia-Chun Kuo; Ming-Lu Guo; Ai-Ho Liao; Hsiao-Wei Yu; Muthusankar Ganesan; Chu-Wei Li; Shiu-Chen Jeng; Jeng-Fong Chiou; Lai-Lei Ting; Ho-Chiao Chuang (Biomed. Signal Process. Control., 2022)