| 摘要 |
<p>PURPOSE:To prevent the degradation of communication quality by eliminating the influence of the fluctuation of the power source voltage of a transmitter in an arbitrary period in a receiver even if a transmission signal level fluctuates by the influence. CONSTITUTION:A time division 62 is performed for communication data in the period according to the period of the fluctuation of power source voltage on a transmission side, a speed conversion to a high speed side is performed for the communication data within each division section in the section and the plural same communication data is multiplexed 63 with synchronizing signals and the data is transmitted 64. In a reception side, the level fluctuation of a reception signal is detected 65, the division section on the transmission side is extracted 66 based on the cycle of the level fluctuation and the synchronizing signal in the reception signal, communication data which is little affected by the level fluctuation of the same plural communication data within each division is extracted 65 and time series communication data on an original transmission side is obtained 67 based on the extraction. For instance, even when the level of the transmission signal of radio equipment such as the rotor modulation in the digital radio equipment for mounting on a helicopter periodically fluctuates by the fluctuation of power source voltage, communication quality is not degraded.</p> |
