仿真了锁相环工作到一定时间后达到锁定状态的过程，程序采用的是一阶RC低通滤波器即二阶一型环

仿真了锁相环工作到一定时间后达到锁定状态的过程，程序采用的是一阶RC低通滤波器即二阶一型环-Simulation of the PLL to work until after a certain period of time to achieve lock-state process, the procedure is used first-order RC low-pass filter that is second-order on

本程序用matlab m文件仿真rc二阶环，对于通信领域研究人员来说，同步问题非常重要，工程常用二阶环对于初学者大有裨益。(This procedure uses Matlab m file simulation RC two level ring, for the field of communication researchers, synchronization is very important, the project com