二阶锁相环Matlab仿真代码，如入两路信号和信噪比，输出锁相以后的信号。可以仿真初始频差，和频率斜升的情况-second-order PLL Matlab simulation code, such as two-way signals and signal to noise ratio, the output signal after the lock-in. Simulation can initial frequency difference, and frequency ramp-up

数字通信中的锁相环（PLL）完整程序，包括噪声处理，可用于GPS的的跟踪和捕获-the matlab code of PLL ,including how to deal with the noise ,which can be used to acquiring and tracking on GPS

pll simulink model. noise and system model

调频电路的matlab simulink 仿真-The objectives of this laboratory are: To investigate frequency modulation characteristics in the frequency domain. To implement a classical double-tuned FM demodulator and measure its characteristics. To implement a mod