sig.m

该程序实现了A律13折线量化编码过程。包括两种译码方法：1手工译码法

function y=Sig(u)
codebook=[-126 -122 -118 -114 -110 -106 -102 -98 -94 -90 -86 -82 -78 -74 -70 -66 -63 -61 -59 -57 -55 -53 -51 -49 -47 -45 -43 -41 -39 -37 -35 -33 -31.5 -30.5 -29.5 -28.5 -27.5 -26.5 -25.5 -24.5 -23.5 -22.5 -21.5 -20.5 -19.5 -18.5 -17.5 -16.5 -15.75 -15.25 -14.75 -14.25 -13.75 -13.25 -12.75 -12.25 -11.75 -11.25 -10.75 -10.25 -9.75 -9.25 -8.75 -8.25 -7.875 -7.625 -7.375 -7.125 -6.875 -6.625 -6.375 -6.125 -5.875 -5.625 -5.375 -5.125 -4.875 -4.625 -4.375 -4.125 -3.9375 -3.8125 -3.6875 -3.5625 -3.4375 -3.3125 -3.1875 -3.0625 -2.9375 -2.8125 -2.6875 -2.5625 -2.4375 -2.3125 -2.1875 -2.0625 -1.96875 -1.90625 -1.84375 -1.78125 -1.71875 -1.65625 -1.59375 -1.53125 -1.46875 -1.40625 -1.34375 -1.28125 -1.21875 -1.15625 -1.09375 -1.03125 -.96875 -.90625 -.84375 -.78125 -.71875 -.65625 -.59375 -.53125 -.46875 -.40625 -.34375 -.28125 -.21875 -.15625 -.09375 -.03125 .03125 .09375 .15625 .21875 .28125 .34375 .40625 .46875 .53125 .59375 .65625 .71875 .78125 .84375 .90625 .96875 1.03125 1.09375 1.15625 1.21875 1.28125 1.34375 1.40625 1.46875 1.53125 1.59375 1.65625 1.71875 1.78125 1.84375 1.90625 1.96875 2.0625 2.1875 2.3125 2.4375 2.5625 2.6875 2.8125 2.9375 3.0625 3.1875 3.3125 3.4375 3.5625 3.6875 3.8125 3.9375 4.125 4.375 4.625 4.875 5.125 5.375 5.625 5.875 6.125 6.375 6.625 6.875 7.125 7.375 7.625 7.875 8.25 8.75 9.25 9.75 10.25 10.75 11.25 11.75 12.25 12.75 13.25 13.75 14.25 14.75 15.25 15.75 16.5 17.5 18.5 19.5 20.5 21.5 22.5 23.5 24.5 25.5 26.5 27.5 28.5 29.5 30.5 31.5 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 66 70 74 78 82 86 90 94 98 102 106 110 114 118 122 126];
predictor=[0 1];
y=dpcmdeco(u,codebook,predictor);