DVB-S2信号基于波形特征的载波搜索研究

Research of Carrier Searching Based on Spectrum Characteristic of DVB-S2 Signals

为了便于从未解调载波入手找出频谱分析方法,从系统角度对卫星DVB信号的传送过程进行了Simulink仿真,得到了接收端未解调解码的多载波信号频谱,并使用基于波形特征的方法对载波频率进行提取。

In order to find the analysis methods of carrier spectrum, the transmitted satellite Digital Video Broadcasting （DVB） signals are simulated, and the received muhicarrier signal spectrum without demodulating and decoding is obtained. And then, the carrier frequency is get based on the method of spectrum characteristic.