DSB-SC stands for Double Sideband Suppressed Carrier. It is a modulation technique used in communication systems to transmit information over a carrier wave. Here is a step-by-step explanation of DSB-SC:

1. Double Sideband: DSB-SC modulation involves transmitting two sidebands, upper and lower, on both sides of the carrier frequency. These sidebands contain the modulated information.

2. Suppressed Carrier: In DSB-SC, the carrier wave is completely suppressed or removed, meaning it is not transmitted. This helps in efficient utilization of the available bandwidth.

3. Modulation Process: To generate DSB-SC, the baseband signal (the signal to be transmitted) is multiplied with a carrier wave of frequency fc. This process is known as modulation.

4. Frequency Spectrum: The resulting modulated signal contains two sidebands, each carrying a copy of the baseband signal. The upper sideband is located above the carrier frequency, while the lower sideband is located below the carrier frequency.

5. Demodulation: At the receiver end, the DSB-SC signal is demodulated by multiplying it with a local carrier wave of the same frequency and phase as the original carrier. This process extracts the original baseband signal.

6. Advantages and Applications: DSB-SC modulation is simple and efficient, making it suitable for applications such as amplitude modulation (AM) broadcasting, single-sideband (SSB) modulation, and frequency division multiplexing (FDM).

In summary, DSB-SC is a modulation technique that involves transmitting two sidebands while suppressing the carrier wave. It is used in various communication systems for efficient transmission of information.

Question

DSB-SC stands for Double Sideband Suppressed Carrier. It is a modulation technique used in communication systems to transmit information over a carrier wave. Here is a step-by-step explanation of DSB-SC:

1. Double Sideband: DSB-SC modulation involves transmitting two sidebands, upper and lower, on both sides of the carrier frequency. These sidebands contain the modulated information.

2. Suppressed Carrier: In DSB-SC, the carrier wave is completely suppressed or removed, meaning it is not transmitted. This helps in efficient utilization of the available bandwidth.

3. Modulation Process: To generate DSB-SC, the baseband signal (the signal to be transmitted) is multiplied with a carrier wave of frequency fc. This process is known as modulation.

4. Frequency Spectrum: The resulting modulated signal contains two sidebands, each carrying a copy of the baseband signal. The upper sideband is located above the carrier frequency, while the lower sideband is located below the carrier frequency.

5. Demodulation: At the receiver end, the DSB-SC signal is demodulated by multiplying it with a local carrier wave of the same frequency and phase as the original carrier. This process extracts the original baseband signal.

6. Advantages and Applications: DSB-SC modulation is simple and efficient, making it suitable for applications such as amplitude modulation (AM) broadcasting, single-sideband (SSB) modulation, and frequency division multiplexing (FDM).

In summary, DSB-SC is a modulation technique that involves transmitting two sidebands while suppressing the carrier wave. It is used in various communication systems for efficient transmission of information.

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