How do you do FM modulation in Matlab?

How do you do FM modulation in Matlab?

FM Modulate a Sinusoidal Signal

1. Open Live Script.
2. fs = 1000; fc = 200; t = (0:1/fs:0.2)’;
3. x = sin(2*pi*30*t)+2*sin(2*pi*60*t);
4. fDev = 50;
5. y = fmmod(x,fc,fs,fDev);
6. plot(t,x,’c’,t,y,’b–‘) xlabel(‘Time (s)’) ylabel(‘Amplitude’) legend(‘Original Signal’,’Modulated Signal’)

What is frequency modulation in Matlab?

Frequency modulation is the encoding of data in a carrier wave by changing the immediate frequency of the wave. In other words in frequency modulation, the frequency, as opposed to the amplitude of the carrier wave, is made to change in relation to the differing amplitude of the modulating signal.

What is modulation short note?

Modulation is the addition of information to an electronic or optical carrier signal. In electronics and telecommunications, modulation is the process of varying one or more properties of a periodic waveform, the carrier signal, with a modulating signal that typically contains information that is to be transmitted.

Why FM is used?

Frequency modulation (FM) is the encoding of information in a carrier wave by varying the instantaneous frequency of the wave. The technology is used in telecommunications, radio broadcasting, signal processing, and computing. For this reason, most music is broadcast over FM radio.

What is FM modulation?

Frequency modulation (FM) is a method of impressing data onto an alternating-current (AC) wave by varying the instantaneous frequency of the wave. This scheme can be used with analog or digital data.

What are the different types of modulation techniques?

Usually high frequency sine wave is used as a carrier wave signal. These modulation techniques are classified into two major types: analog and digital or pulse modulation. Prior to discussing further about the different types of modulation techniques, let us understand the importance of modulation.

What is the maximum modulating frequency in broadcast FM?

In most communications systems using FM, maximum limits are put on both the frequency deviation and modulating frequency. For example, in standard FM broadcasting, the maximum permitted frequency deviation is 75 KHz, while the maximum permitted modulating frequency is 15 KHz.

What are the methods in generating an amplitude modulation?

The Heising method was the first practical method of generating an Amplitude Modulated radio signal. This method used the application of an audio signal superimposed on the anode supply voltage of a class-C RF amplifier. Controlled Carrier