Inquiry

[chriskz]

Hi madam,
I have some question about the relationship between frequency modulation and other modulation techniques such as phase modulation, amplitude modulation and angle modulation.All those techniques is in the category of analog modulation.
May i know that whether phase modulation is the same with angle modulation??
Thank you.

[dave]

Since angle and phase are effectively the same thing (perhaps related by a factor of 360/2*pi, I would have thought the 2 forms of modulation you mention should be the same. However, from what I can gather, angle modulation seems to encompass both phase and frequency modulation. There are plenty of references out there.