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Analog vs Digital Modulation Techniques | Advantages of Digital ...




In the previous article, we've talked about the need for modulation and we've also talked about analog & digital modulations briefly. In this article, we'll discuss the main difference between analog and digital modulation in the case of digital modulation it takes a digital signal for modulation whereas analog modulator takes an analog signal. 


Advantages of Digital Modulation over Analog Modulation

  • Digital Modulation Techniques are Bandwidth efficient
  • Its have good resistance against noise
  • It can easily multiple various types of audio, voice signal
  • As it is good noise resistant so we can expect good signal strength
  • So, it leads high signal-to-noise ratio (SNR)
  • Alternatively, it provides a high data rate or throughput
  • Digital Modulation Techniques have better swathing capability as compared to Analog Modulation Techniques
  •  The digital system provides better security than the analog. Because encryption and decryption of digital signals are quite easy.

Analog Modulation Techniques - Amplitude Modulation, Frequency Modulation, and Phase Modulation

Digital Modulation Techniques - Amplitude Shift Keying (ASK), Frequency shift keying (FSK), Phase Shift Keying (PSK), Quadrature Phase Shift Keying (QPSK), Quadrature Amplitude Modulation (QAM),

# Technique used to reduce amplitude modulation interference

Analog modulation system depends on
A. Signal amplitude, frequency, and phase


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