On the Speed Tolerance of Certain Classes of Data Transmission Systems
R.A. Zakarevicius, Kamilo Feher · IRE Transactions on Communications Systems · 1986
Improved efficiency multilevel partial response systems have recently been discovered. They are superior to conventional partial response systems when operated above the Nyquist signaling rate. This behavior has not as yet been explained and this correspondence gives a concise analysis, which shows the reason for the superior performance.