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2ASK- 包 络 检 波x() t = s () t + n ()cos t ω t−n ()sin t ω tm c c s c混 合 波 形 的 包 络sm(KTs)=⎧a,⎨⎩0,"1""0"v KTs a n kT n kT( ) [ ( )] 2 2( )1= +c s+s sv kT n kT n kT( ) 2 ( ) 2( )0 s=c s+s s2011-9-11 49
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