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An All Digital Implementation of M-VSB MODEM using Advanced Digital Signal Processing Techniques

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2 Author(s)
Harris, F.J. ; San Diego State Univ., CA ; Ramamurthy, A.

This paper presents a DSP based implementation of a vestigial side band (VSB) modem. Utilizing the flexibility of advanced/multirate signal processing techniques, a novel method is first used to generate the VSB signal at the modulator. The focus of this paper is the design of the demodulator where we demonstrate efficient carrier & timing synchronization techniques. We show that with a small change in perspective, the VSB signal can be viewed as an off-set quadrature phase shift keying (O-QPSK) signal. We exploit this perspective and present algorithms and structures applicable to O-QPSK to perform carrier and timing recovery for M-VSB

Published in:

Signal Processing Advances in Wireless Communications, 2006. SPAWC '06. IEEE 7th Workshop on

Date of Conference:

2-5 July 2006