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【简答题】
调相波的调制信号为v F (t)=V Ωm cosΩt，被调载波信号为v c (t)=V cm cosω c t，则调相波的表示式可写为 v FM (t)=V cm cos(ω c t+m P cosΩt) 式中，m P =K P V Ωm ，试用与分析调频波类似的方法分析调相波的频谱并比较调制信号相同时，调相波与调频波频谱之间的异同。
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A.
lend, borrow
B.
borrow, lend
C.
lend, lend
D.
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