DTMT编码和解码程序。可以把电话号码先编码成为wav文件，再通过解码把它恢复原来的号码-DTMT encoding and decoding process. Phone numbers can be encoded into wav files first, and then put it through the decoder to restore the original number

在matlab软件平台上，仿真通信传输系统中的DPSK编码过程。-On matlab software platform, simulation communication DPSK transmission system encoding process.