| 摘要 |
PURPOSE:To prevent disappearance of a desired signal wave and to eliminate a wide- band interference wave and the multipath distortion by giving a delay time difference to transmission symbols between diversity routes to transmit them from the transmission side and equalizing a synthesized signal, which is generated by synthetic diversity, by a matching filter and a discrimination feedback equalizer on the reception side. CONSTITUTION:This system consists of multipliers 101 and 102 a subtractor 104, AGC amplifiers 105, 108, and 109, correlators 106 and 107, a changeover switch 110, a matching filter 111, a discrimination feedback equalizer 112, a delay element 113, and transmiters 114 and 115. A prescribed time difference is given to first and second transmission signals and they are transmitted, and a first reception signal consisting of the first transmission signal and an interference wave and a second reception signal consisting of the second transmission signal and the interference wave are subjected to diversity synthesis so that phases of first and second interference waves are opposite, and the synthesized signal is equalized through an adaptive receiver consisting of the matching filter 111 and the discrimination feedback equalizer 112. Thus, disappearance of the desired signal wave due to interference wave elimination is prevented, and the wide-bank interference wave and the multipath distortion are eliminated. |
