QAM ...\QAM ...\...\my_bi2de.m ...\...\my_de2bi.m ...\...\my_qamdemod.m ...\...\my_qammod.m ...\...\my_rrc.m ...\...\my_rrcosflt.m ...\...\my_speech.m ...\...\my_speech.wav ...\...\scatter_plot.m ...\...\tfplot.m