This discussion focuses on the definitions and differences between amplitude modulation (AM) and frequency modulation (FM). AM modulation is represented mathematically as s(t) A sin(ωt), while FM modulation is expressed as A sin(B s(t) t). The choice between AM and FM modulation depends on factors such as signal quality, bandwidth requirements, and the specific application in radio transmission.
PREREQUISITESStudents, engineers, and professionals in telecommunications, radio broadcasting, and signal processing who seek to understand modulation techniques and their applications.
at first i want to now what is the fm modulation and the am modulation and what is the difference between both and how can i choose the type of the modulationJoAuSc said:You need to give us a lot more information before we can tell what you're asking for. Where did you hear about "modulation"? Is it in reference to "amplitude modulation" or "frequency modulation", both of which describe ways information is encoded in radio waves?
JoAuSc said:Let's say the signal we want to transmit is s(t). AM modulation is the following:
s(t) A \sin(\omega t)
Here \sin(\omega t) is the carrier signal, \omega is its angular frequency, A is a constant, and t is time.
FM modulation is the following:
A \sin(B s(t) t)
B is a constant, and the other variables are the same as they were above.
I don't know the specifics of how these are used in radio.