Question
Download Solution PDFWhat is a primary application of VSB (Vestigial Sideband) modulation?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept:
VSB (vestigial sideband) transmission transmits one sideband fully and the other sideband partially thus, reducing the bandwidth requirement.
Vestigial Sideband Modulation (VSB) is used for video modulation in TV transmission due to the following reasons:
- Video signal exhibits a large bandwidth and significant low-frequency content which suggests the use of VSB.
- VSB (vestigial sideband) transmission transmits one sideband fully and the other sideband partially thus, reducing the bandwidth requirement.
- The circuitry for demodulation in the receiver should be simple and therefore cheap. VSB demodulation uses simple envelope detection.
The spectrum of a vestigial sideband is as shown:
Last updated on Jun 7, 2025
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