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根据PPM调制方式的特点和实际接收到的超宽带脉冲信号波形的特征,采用基于能量检测的接收机方案,用门控能量检测电路,将射频检测与同步捕获相结合实现快速捕获同步。实测数据验证了此接收机方案能在100 Mbit/s高传输速率的情况下能取得较好的超宽带信号接收效果。
According to the characteristics of the PPM modulation scheme and the characteristics of the received ultra-wideband pulse signal waveform, a receiver scheme based on energy detection is adopted. A gated energy detection circuit is used to combine the RF detection with the synchronization acquisition to achieve fast acquisition synchronization. The measured data verify that the receiver scheme can achieve good UWB signal reception under the condition of a high transmission rate of 100 Mbit / s.