公开(公告)号：US20020025782A1

公开(公告)日：2002-02-28

申请号：US09934870

申请日：2001-08-21

申请人： Yoji MAKISHIMA

发明人： Masaki Tatemori ,  Yoji Makishima

IPC分类号： H04B001/68

CPC分类号： H04B1/0092 ,  H03D1/24 ,  H04B1/005 ,  H04B1/302 ,  H04B1/68

摘要： An SSB radio communication system and radio apparatus applicable to ultra high frequencies such as a VHF band and UHF band. In the transmitting side, a carrier wave is amplitude modulated by modulation input signals which comprise a constant amplitude, sine wave shaped reference pulse having a predetermined width and period and a sine wave shaped modulation pulse signal having an amplitude representing two- or multi-value digital values having the same width as the reference pulse signal and which are formed based on the amplitude of the reference pulse signal, and the modulated pulse signals are transmitted on a single side band, while in its receiving side the gain of received signals is automatically adjusted based on the reference pulse signal that is the value of the peak of the received signals. Further, in the transmitting side, the period or frequency of the reference pulse signal is also formed in synchronism with the carrier wave frequency, and in the receiving side, a local carrier wave frequency to be given to a demodulator is determined based on the period of frequency of the reference pulse signal.

摘要翻译： 适用于超高频（如VHF频带和UHF频段）的SSB无线电通信系统和无线电设备。 在发送侧，载波通过调制输入信号进行幅度调制，该调制输入信号包括具有预定宽度和周期的恒定振幅正弦波形参考脉冲和具有表示二值或多值的振幅的正弦波形调制脉冲信号 具有与参考脉冲信号相同的宽度并且基于参考脉冲信号的幅度形成的数字值，并且调制的脉冲信号在单个边带上发送，而在其接收侧中，接收信号的增益被自动地 基于作为接收信号的峰值的参考脉冲信号进行调整。 此外，在发送侧，参考脉冲信号的周期或频率也与载波频率同步地形成，并且在接收侧中，基于周期来确定给予解调器的本地载波频率 的参考脉冲信号的频率。