| 摘要 |
<p>Devices for modulation and demodulation in a system for transmission of serial digital information by means of multi-carrier Offset Quadrature Amplitude Modulation. The devices comprise S/P converters, P/S converters, means for inverse Fourier transformation (IFFT), and also at least two pulse-shaping/matching means arranged in each of a first and a second branch, data from which branches is summed in a summator. The pulse-shaping/matching means are designed and connected in such a manner that, in the demodulator, the means for IFFT can be connected directly to the P/S converter and, in the modulator, the S/P converter can be connected directly to the means for IFFT.</p> |
