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使用正交模拟锁相环路对无载波的脉冲无线电系统实现多径捕获和同步提取。首先给出脉冲信号在正交正弦信号分解的结果特性,得出锁相接收的可能性。然后给出了使用正交模拟锁相环路实现多径捕获和同步提取的方法和步骤,讨论了锁相环路的性能和关键参数,给出了在实际信道数据下的模拟结果。结果表明该方法优于现有的多径捕获和同步方法,且结构简单易于实现。
Using Orthogonal Analog Phase - Locked Loop to Realize Multipath Acquisition and Synchronization Extraction for Carrierless Pulsed Radio System. First of all, the result of the characterization of the pulse signal in the orthogonal sinusoidal signal decomposition is given, and the possibility of phase-locked reception is obtained. Then, the method and the steps of multipath acquisition and synchronization extraction using orthogonal analog PLL are given. The performance and key parameters of the PLL are discussed. The simulation results under the actual channel data are given. The results show that this method is superior to the existing multi-path acquisition and synchronization method, and the structure is simple and easy to implement.