Question
Download Solution PDFDSB-SC, VSB and SSB modulation are types of:
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe correct answer is: 2) Amplitude Modulation (AM)
Explanation:
DSB-SC, VSB, and SSB are all variants of Amplitude Modulation (AM), where the amplitude of the carrier signal is varied in proportion to the message signal. Here’s how they differ:
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DSB-SC (Double Sideband Suppressed Carrier)
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Transmits both sidebands but suppresses the carrier.
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More power-efficient than standard AM but requires coherent detection.
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VSB (Vestigial Sideband)
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A compromise between DSB and SSB, transmitting one full sideband + part of the other.
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Used in TV broadcasting (e.g., analog NTSC/PAL signals).
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SSB (Single Sideband)
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Transmits only one sideband (either USB or LSB) and suppresses the carrier.
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Maximizes bandwidth and power efficiency (used in HF radio, military comms).
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Last updated on Jun 7, 2025
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