Fig. 2b, each of whose time durations or pulse widths represents a group of m data bits, with the alternating high and low pulses representing successive groups.
图2B串，每个脉冲的持续时间或脉宽表示M个数据位的组，交替的高和低脉冲表示连续的组。
Fig. 2b, each of whose time durations or pulse widths represents a group of m data bits, with the alternating high and low pulses representing successive groups.
图2B串，每个脉冲的持续时间或脉宽表示M个数据位的组，交替的高和低脉冲表示连续的组。
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