若载波uC(t)=UCcosωCt,调制信号uΩ(t)=UΩsinΩt,则调相波的表
题型:单项选择题
问题:
若载波uC(t)=UCcosωCt,调制信号uΩ(t)=UΩsinΩt,则调相波的表达式为().
A.uPM(t)=UCcos(ωCt+mPsinΩt)
B.uPM(t)=UCcos(ωCt-mPcosΩt)
C.uPM(t)=UC(1+mPsinΩt)cosωCt
D.uPM(t)=kUΩUCcosωCtsinΩt
若载波uC(t)=UCcosωCt,调制信号uΩ(t)=UΩsinΩt,则调相波的表达式为().
A.uPM(t)=UCcos(ωCt+mPsinΩt)
B.uPM(t)=UCcos(ωCt-mPcosΩt)
C.uPM(t)=UC(1+mPsinΩt)cosωCt
D.uPM(t)=kUΩUCcosωCtsinΩt