Abstract
Several new methods to generate a vestigial-sideband signal (VSB) for data transmission are presented in this paper. In these methods, phase-shift methods such as used for generating single-sideband (SSB) signals have been employed to obtain the desired VSB signal by modifying the Hilbert transform of the baseband signal either in its amplitude spectrum or in its phase spectrum. The desired baseband signal data shaping and VSB shaping functions are obtained by using IC shift registers, weighting resistors, summing amplifiers, and simple low-pass filters so that data-shaping filters, VSB filters, and their associated equalizers can be eliminated in the process of generating VSB signals.
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