What are Digital Modulation Techniques ?
There are mainly three types in Analog Modulation which are Amplitude Modulation, Frequency Modulation and Phase Modulation. Here the amplitude, frequency and phase of carrier wave changes with respect to amplitude of message signal. Whereas in Digital Modulation a process called as Shift Keying is used.
How do we transmit a bit stream?
Shift Keying means that the amplitude, frequency or phase of the carrier wave is shifted between two or more discrete values rather than varying continuously like Analog Modulation. Binary data requires two discrete levels of amplitude, frequency or phase for modulation called as Binary Shift Keying. A group of bits can be clubbed together to form M-ary Shift Keying.
There are mainly three types of Digital Modulation techniques. They are :
- Amplitude Shift Keying
- Frequency Shift Keying
- Phase Shift Keying
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
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