Advantages of amplitude modulation

Answer 1

SBSC and DSBRC signals need their carrier to be regenerated (by a beat frequency oscillator, for instance) to be demodulated using conventional techniques.

Even greater efficiency is achieved—at the expense of increased transmitter and receiver complexity—by completely suppressing both the carrier and one of the sidebands. This is single-sideband modulation, widely used in amateur radio due to its efficient use of both power and bandwidth.

A simple form of AM often used for digital communications is on-off keying, a type of amplitude-shift keying by which binary data is represented as the presence or absence of a carrier wave. This is commonly used at radio frequencies to transmit Morse Code, referred to as continuou

Answer 2

There are two major disadvantages of delta modulation:

1. Slope overload distortion: occurs when modulating signal varies faster than counter recovered signal.

2. Granular noise: occurs when variation in modulating signal is smaller than step size.

Answer 3

The signal transmitted consists of a 1 bit data stream. As a result, the reconstruction of the original signal from the modulated signal is easier. It also has lower distortion.

Answer 4

we ca reduce the slope overload error and granular error by using adaptive delta modulation.