| 摘要 |
PURPOSE:To obtain diversity effect by a simple method by providing several antennas to either a transmitter or reciver, by changing over connections between antennas and the transmitter or receiver synchronizing with a transmission rate, and then by mixing bit signals by adding after reception. CONSTITUTION:The number of antennas 1 and 2 or 10 and 11 of transmitter 4 or receiver 7 is made plural and respective antennas 1 and 2, and 10 and 11 are connected to transmitter 4 and receiver 7 by way of antenna switch 3. Synchronizing with a transmission rate, this switch 3 is changed over by data transmitting terminal 5 or data receiving terminal 8 controlling the operation of transmitter 4 or receiver 7 to transmit or receiver data. After being demodulated by receiving terminal 8, received bit data are sampled and held, and then added and decoded, thereby obtaining diversity effect by a simple method. |
