Least squares approximation-based ROM-free direct digital frequency synthesizer. - Ching-Hua Wen; Huai-Yi Hsu; Hung Yang Ko; An-Yeu Wu (ISCAS (2), 2004)

Digital signal processing engine design for polar transmitter in wireless communication systems. - Hung Yang Ko; Yi-Chiuan Wang; An-Yeu Wu (ISCAS (6), 2005)