基于状态机伪码快速捕获的研究

在扩频通信系统中,长伪码序列的快速捕获是一个关键问题。针对传统捕获方法捕获速度慢、消耗资源多的缺点,提出一种基于状态机的新型伪码快速捕获方法,介绍了状态机伪码快速捕获方法的原理并在FPGA上实现了快速捕获。仿真结果表明,和传统的串行捕获方法相比,该算法在不降低捕获速度的基础上消耗更少的资源。

Research on Fast Acquisition Method Based on State Machine Pseudo Code

The fast acquisition of long pseudo code sequence is a key problem in spread spectrum communication system. A new pseudo code fast acquisition method based on state machine is proposed for solving the slow acquisition speed and more resource consumption of the conventional acquisition method.The acquisition principle,the design and FPGA implementation of the new acquisition method are introduced.The experimental results show that the method has faster acquisition speed and less resource consumption.