论文部分内容阅读
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,为了在超宽带通信中,简单、快速地接收信号,文章采用基于能量检测的接收机方案,用门控能量检测电路来代替时域相关器,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在100Mbps高传输速率的情况下能取得较好的超宽带信号接收效果。该方法在提供了良好的超宽带信号接收效果的同时,简化了接收机射频端电路的复杂度,减少了接收机同步捕获所需的时间。
According to the characteristics of PPM modulation mode and the characteristics of the received ultra-wideband pulse signal waveform, in order to receive signals easily and quickly in UWB communication, the receiver based on energy detection is adopted in this paper. Instead of time-domain correlators, RF detection and synchronization acquisition are combined to achieve fast acquisition synchronization. The measured data verify that the receiver scheme can achieve good ultra-wideband signal reception under the condition of a high transmission rate of 100 Mbps. The method not only provides good ultra-wideband signal reception, but also simplifies the complexity of the RF circuit of the receiver and reduces the time required for the receiver to capture synchronously.