提供了4-psk的matlab源程序包，包括主函数和子函数，可供初学者学习参考。-Provides a 4-psk the matlab source code package, including the main function and Functions for beginners to learn the reference.

提供了使用matlab仿真2FSK误码率的源程序，可供初学者学习参考。-Provided the use of matlab simulation BER 2FSK source for beginners to learn the reference.