| 摘要 |
Method for reconstructing during reception three baseband source signals (D1,D2,D3) modulated (tx1,tx2,tx3) at high frequency and transmitted isofrequential and co-polar on a short-range radio link comprising three pairs of transmitting/receiving antennas (AT1-AR1;AT2-AR2;AT3-AR3) for each transmission polarization, wherein each of said receiving antennas (AR1,AR2,AR3) is able to receive a respective high-frequency signal (rxl,rx2,rx3) consisting of a primary component, corresponding to the signal transmitted by the respective transmitting antenna, and an interfering component, consisting of a combination of the signals transmitted by the other two transmitting antennas, the method comprising the following steps:
- calculating the complex conjugate signal (rx2*) of the signal (rx2) received by the second antenna (AR2);
- phase-shifting said complex conjugate signal (rx2*) by an amount equal to the first phase shift ±, resulting in a phase-shifted complex conjugate signal (rx2*exp(j±));
- subtracting the said complex conjugate signal (rx2*exp(j±)) phase-shifted by ± from the signal (rx1) received by the first receiving antenna (AR1) with generation of a reconstructed signal ( tx3 ):
- subtracting the said complex conjugate signal (rx2*exp(j±)) phase-shifted by ± from the signal (rx3) received by the third antenna with generation of a reconstructed signal (tx1) ;
- estimating (D1^) the value of the signal transmitted (D1,tx1) by the first transmitting antenna (AT1) on the basis of the reconstructed signal ( tx1 ):
- estimating (D3^) the value of the signal transmitted (D3,tx3) by the third transmitting antenna (AT3) on the basis of the reconstructed signal ( tx3 ):
- subtracting from the signal (rx2) received by the second receiving antenna (AR2) the sum of said estimation signals (D1^,D3^), with reconstruction ( tx2 ) of the signal (D2,tx2) transmitted by the second transmitting antenna (AT2). |
