| 摘要 |
An apparatus for receiving broadcast signals modulated using Quadrature Amplitude Modulation / Orthogonal Frequency Division Multiplexing, QAM/OFDM, comprises: a demodulator (45110) to receive first and second broadcast signals through first and second antennas, and to demodulate the received first and second broadcast signals by an Orthogonal Frequency Division Multiplexing, OFDM, scheme; a frame parser (45130) to parse first and second frames from the demodulated first and second broadcast signals; a time deinterleaver (45140) for time deinterleaving the first and second frames; a Multi-Input Multi-Output, MIMO, processor (45150) to process data in the time deinterleaved frames, wherein the MIMO processing is performed based on a 2x2 rotation matrix having a parameter which is related to an angle of a rotation that is determined according to the constellations applied to the broadcast signals;
and a decoder (45180) to Forward Error correction, FEC, decode the MIMO processed data to output Physical Layer Pipe, PLP, data bits. |
