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一、引言单路单载波数字卫星通信系统,是用数字技术实现在同一信道中传输话音和数据的预分配卫星通信系统。该系统的特点是,每路话占用一个独立的载波。因此,它易于实现多址通信,同时也适于话音“激活”技术。其工作方式有“连续”和“激活”两种。在“激活”工作方式下,输入到解调器的信号是调制的突发信号,且突发信号的间隔又是随机的。其
I. INTRODUCTION Single-channel single-carrier digital satellite communication system is a pre-distribution satellite communication system that uses digital technology to transmit voice and data in the same channel. The characteristic of this system is that each way occupies an independent carrier. Therefore, it is easy to achieve multiple access communication, but also suitable for voice “activation” technology. Its working methods are “continuous” and “activated” two. In the “active” mode of operation, the signal input to the demodulator is a modulated burst signal and the burst interval is random again. its