amr是一种优秀的变速率语音编码技术，这篇文档介绍了amr中用到的两种帧结构。-amr is outstanding variable-rate speech coding technology, This document describes the amr which use the two frame structure.

amrwb适用于3G系统的变速率语音编码技术，这篇文档介绍了amrwb中的帧结构。-amrwb applicable to the 3G system variable-rate speech coding technology, This document describes the amrwb the frame structure.

A 2by3 MIMO model using Simulink. The decoder uses zero forcing algorithm. Set in the workspace the modulation order (QAM modulation), Doppler shift, SNR in dB, bit rate, sample per frame, max number of bits and max number of errors before running th