Disadvantages of Digital Modulation Techniques
- Additional Circuitry: Analog to Digital Converter (ADC) must be connected before modulating the signal to convert analog message signal to digital signal at the transmitter side and Digital to Analog Converter (DAC) must be connected after demodulating the signal to convert digital signal back to analog wave. This can increase the cost of communication system.
- Synchronization: For proper detection and demodulation of received signal synchronization is required. This requires oscillator circuitry which must be present at both transmitter and receiver.
- High Power Consumption: While Shift Keying Modulation may consume less power than Analog Modulation, it still consumes more power as compared to Pulse Modulation techniques such as PAM, PWM and PPM where the message signal is analog but the carrier is rectangular wave.
Digital Modulation Techniques
Modulation is the Fundamental Process in Communication Systems, In Modulation Low-Frequency Message Signal Blends with High-Frequency Carrier Frequency to Enable Efficient Transfer of the Signal. In this article, we will be going through Digital Modulation Techniques, First we will start our Article by Defining Modulation, Then we will go through the Three types of Digital Modulation techniques with Their Wave, At Last we will conclude our Article With their Application, Advantages, Disadvantages and Some FAQs.
Table of Content
- Modulation
- Digital Modulation Techniques
- Amplitude Shift Keying
- Frequency Shift Keying
- Phase Shift Keying
- M-ary Encoding
- Applications
- Advantages
- Disadvantages