Patent ID: 8549060

Claim:
An apparatus for generating a signal composed of a plurality of individual signals, comprising: a provider for providing the plurality of individual signals in the time domain; a transformer for transforming the individual signals from the time domain to the frequency domain, each by a discrete Fourier transformation with a first length; a processor for processing the individual signals transformed to the frequency domain, each depending on a signal channel existing between a simulation location and a respective signal location; a combiner for combining the processed individual signals transformed to the frequency domain to a combined signal, wherein the combiner is implemented to extend the bandwidth of the respective frequency domain of the discrete Fourier transformation to an output frequency domain; and a transformer for transforming the combined signal from the output frequency domain to the time domain by an inverse discrete Fourier transformation with a second length, for acquiring the combined signal, wherein the second length of the inverse discrete Fourier transformation is greater than the first length of the respective discrete Fourier transformation due to the extended output frequency domain.