How Do Time Domain Representations Compare in DSB-SC Modulation?

In summary, double side band modulation is a type of amplitude modulation that allows for the transmission of both upper and lower sidebands of a carrier wave, resulting in more efficient use of bandwidth. It works by varying the amplitude of the carrier wave in proportion to the input signal, creating two sidebands with transmitted information. Its advantages include higher information transmission and simpler demodulation, while its disadvantages include larger bandwidth and susceptibility to noise and interference. It is commonly used in radio and television broadcasting, telecommunication systems, and radar and sonar systems.
  • #1
erece
72
0
the 2 signals shown are used for modulating ( DSB-SC) a carrier with frequency fc.
Now i need to find the similarities and differences between their time domain representation.
Clearly the both will have same envelope. Now i tried for the difference part but could not find it. One possibility according to me can be the phase change at t=1. Can we find that what will be the phase change for both modulated signals at t =1 without drawing the actual plot ?
 

Attachments

  • am.pdf
    34.7 KB · Views: 215
Last edited:
Engineering news on Phys.org
  • #2
You have repeatedly posted your schoolwork questions in the general technical forums. Please check your PMs.
 

Related to How Do Time Domain Representations Compare in DSB-SC Modulation?

1. What is double side band modulation?

Double side band modulation is a type of amplitude modulation where both the upper and lower sidebands of a carrier wave are transmitted. This allows for more efficient use of bandwidth compared to single side band modulation.

2. How does double side band modulation work?

In double side band modulation, the amplitude of the carrier wave is varied in proportion to the amplitude of the input signal. This results in the creation of two sidebands on either side of the carrier wave, which contain the information being transmitted.

3. What are the advantages of double side band modulation?

One advantage of double side band modulation is that it allows for the transmission of a larger amount of information in a given bandwidth compared to single side band modulation. It also has a simpler demodulation process compared to other types of modulation, making it easier to implement.

4. What are the disadvantages of double side band modulation?

One disadvantage of double side band modulation is that it requires a larger bandwidth compared to other types of modulation, which can be a limitation in some applications. It is also more susceptible to noise and interference, which can affect the quality of the transmitted signal.

5. What are the applications of double side band modulation?

Double side band modulation is commonly used in radio and television broadcasting, as well as in telecommunication systems such as telephone networks. It is also used in radar and sonar systems for communication and detection purposes.

Similar threads

Can a basic envelope detector demodulate a DSB-SC signal?
    • Electrical Engineering
Replies
5
Views
4K
AM, FM modulation, sidebands question
    • Electrical Engineering
Replies
15
Views
3K
DSB and SSB Radio: Explaining the Confusion
    • Electrical Engineering
2
Replies
41
Views
4K
Frequency Shift Key Modulation: how are the carrier frequencies chosen
    • Electrical Engineering
Replies
5
Views
1K
Minimum Frequency of FM Data / Catastrophic Error Scenario?
    • Electrical Engineering
2
Replies
68
Views
4K
Understanding the Relationship Between Time and Frequency in Modulation?
    • Electrical Engineering
Replies
4
Views
1K
A Imperfectly Phase-Modulated Light / Residual Amplitude Modulation
    • Optics
Replies
2
Views
866
Rotating radar time domain data
    • Electrical Engineering
Replies
17
Views
1K
Communication systems -- Find the Modulation Depth....
    • Engineering and Comp Sci Homework Help
Replies
4
Views
2K
How to synchronize the RF source having delay over time?
    • Electrical Engineering
Replies
8
Views
867

Hot Threads

Recent Insights

Back
Top