GSM TCH全速话音信道仿真（基带）

				%绘制不同信噪比下的误码率曲线
				echo on
				clear all
				close all
				snr_in_DB=0:1:10;
				for i=1:length(snr_in_DB)
				    pr_e_r(i)=PrimePe(snr_in_DB(i));   %未编码
				end
				for i=1:length(snr_in_DB)
				    e_r(i)=PrimePe_eiw(snr_in_DB(i));  %编码
				end
				semilogy(snr_in_DB,e_r,'r*',snr_in_DB,pr_e_r,'b*');
				legend('内外编码交织高斯突发','原始高斯突发');