METHOD AND APPARATUS FOR DYNAMICALLY GENERATING MULTIPLE LEVEL DECISION THRESHOLDS OF AN M-ARY CODED SIGNAL

摘要

A method and apparatus for dynamically generating multiple level decisi on thresholds of an M-ary demodulated signal for decoding the signal. The threshold values are obtained by obtaining the maximum and minimum peak values of the demodulated M-ary signal, averaging these peak values and subsequently processing these averaged values to establish the threshold for the particular M-ary signal. Infinite impulse response filters may be advantageously used in the averaging process and these filter s may be preloaded with maximum and minimum peak values such that decision threshold levels may be generated immediately after receiving the M-ary demodulated signal.