Frequency-hopped spread-spectrum transmission with band-efficient modulations and simplified noncoherent sequence estimation. - Yiu Ming Lam; Paul H. Wittke (IEEE Trans. Commun., 1990)

The performance of trellis-coded nonorthogonal noncoherent FSK in noise and jamming. - Paul H. Wittke; Yiu Ming Lam; Michael J. Schefter (IEEE Trans. Commun., 1995)