| 摘要 |
Method and arrangement (100) for creating two samples of output data per symbol interval in each carrier in demodulation in a system for serial transmission of digital information in the form of complex symbols by means of multi-carrier Offset Quadrature Amplitude Modulation on a maximum of N carriers. A device according to the invention comprises means for converting data from serial to parallel form (110), a filter bank (120), means for phase rotation (130), which arrangement outputs two samples per symbol received, and also at least one means (140, 150) for inverse Fourier transform (IFFT). The invention also comprises separation (120, 300) of the output signals which correspond to those of the maximum of N carriers in the input signal which have even numbers from those of the maximum of N carriers which have odd numbers. |
