| 摘要 |
A device and a method for detecting STBC(Space-Time Block Coding) are provided to improve a detection performance of STBC-OFDM(Orthogonal Frequency Division Multiplexing) by removing erroneous propagation of a DF(Decision Feedback). A device for detecting STBC includes a matching filter(100), and whitening filters(110a,110b). The matching filter(100) receives a demodulation symbol of a base band, and has a filter coefficient of h^H. The first and second whitening filters(110a,110b) receive an output of the matching filter(100), and has filter coefficients of (R1^H)^-1 and (R2)^-1. The device for detecting the STBC transmits data x=[x1,x2]^T through two transmission antennas. The device for detecting the STBC detects data x^=[x1^,x2^]^T from a demodulation symbol y=[y1,y2]^T of the base band which is demodulated from the signal received through two receiving antennas.
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