高速UWB-PPM信号传输的并行捕获与检测技术

Parallel capture and RF sync detection technology in high-rate UWB-PPM signal transfer

高速(≥100 Mbit/s)超宽带-脉冲位置调制(UWB-PPM)信号传输是实现超宽带(UWB)室内通信的关键技术。文章结合UWB二元脉冲位置调制(PPM)的信号特征,采用多个并行积分器捕获簇脉冲能量取得快速同步,同时完成PPM的射频同步检测。系统传输试验与系统仿真表明,这种检测方式在室内多径信道下有良好的抗码间干扰能力。

High-rate UWB-PPM signal transfer is a key technology for indoor UWB communications. On account of the characteristics of binary UWB PPM signals, quick synchronization of the pulse energy captured by using multiple parallel integrators is achieved and RF sync detection of PPM completed. System transfer tests and simulation show that this detection method has good anti-ISI performance in indoor multi-path channels.