modulation pulse width

The duration of a pulse in the time interval between the points of the leading and trailing edges at which the instantaneous value bears a specified relation to the pulse amplitude.; 在脈沖的前沿與后沿上各取一點,這兩點的瞬時值與脈沖幅度有規定的關系,在此兩點之 間的時間間隔(稱為脈沖寬度)。