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Questions and Answers
What are the three main types of digital modulation schemes?
What are the three main types of digital modulation schemes?
- Delta Modulation (DM), ASK or Amplitude shift Key, FSK or Frequency shift key
- Amplitude Modulation (AM), Frequency Modulation (FM), Phase modulation (PM)
- Pulse Code Modulation (PCM), Delta Modulation (DM), Amplitude Modulation (AM)
- ASK or Amplitude shift Key, FSK or Frequency shift key, PSK or Phase shift key (correct)
What are the three basic types of analog modulations?
What are the three basic types of analog modulations?
- Amplitude Modulation (AM), Frequency Modulation (FM), Phase modulation (PM) (correct)
- Amplitude Shift Key (ASK), Frequency Modulation (FM), Phase Shift Key (PSK)
- Amplitude Modulation (AM), Frequency Shift Key (FSK), Pulse Code Modulation (PCM)
- Amplitude Modulation (AM), Frequency Shift Key (FSK), Phase Shift Key (PSK)
What are the two techniques described in the section on analog-to-digital conversion?
What are the two techniques described in the section on analog-to-digital conversion?
- Amplitude Modulation (AM) and Frequency Modulation (FM)
- Sampling and Correction
- Pulse Code Modulation (PCM) and Delta Modulation (DM) (correct)
- Frequency Shift Key (FSK) and Phase Shift Key (PSK)
Why is a digital signal considered superior to an analog signal?
Why is a digital signal considered superior to an analog signal?
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What does PCM consist of to digitize an analog signal?
What does PCM consist of to digitize an analog signal?
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Study Notes
Digital Modulation Schemes
- There are three main types of digital modulation schemes
Analog Modulations
- There are three basic types of analog modulations
Analog-to-Digital Conversion
- There are two techniques described in analog-to-digital conversion:
Digital Signal vs Analog Signal
- A digital signal is considered superior to an analog signal because:
Pulse Code Modulation (PCM)
- PCM consists of three stages to digitize an analog signal:
- Sampling: converting the analog signal into a series of pulses
- Quantization: assigning a digital code to each pulse
- Encoding: converting the digital code into a binary signal
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Test your knowledge of analog and digital modulation with this quiz covering topics such as amplitude, frequency, and phase modulation.
