中文说明：该模型表明，残留边带调制与8个离散幅度的水平（8-VSB）的先进电视系统委员会（ATSC）传输系统的数字电视标准[ 1 ]。该标准描述了美国先进电视系统是用来传输
English Description：
This model shows the vestigial sideband modulation with 8 discrete amplitude levels (8-VSB) transmission subsystem of the Advanced Television Systems Committee (ATSC) digital television standard [ 1 ]. The standard describes the characteristics of the U.S. advance