www.gusucode.com > OFDM系统 编码模块的作用是为了提高系统的可靠性，降低接收端的误码率. 数字调制模块可以提高信道的频谱利用率 > OFDM系统 编码模块的作用是为了提高系统的可靠性，降低接收端的误码率. 数字调制模块可以提高信道的频谱利用率/OFDM仿真(matlab)完整可运行/OFDM通信系统/cic_inter.m

    %************************beginning of file*****************************
%cic_inter.m
%发射机的CIC滤波器设计
function dout=cic_inter(din,r)

%插值CIC滤波器通过复制样值实现升采样

%+++++++++++++++++++++++variables++++++++++++++++++++++++++++
% din       输入数据
% r         升采样的插值因子
% dout      输出数据
%++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 

din_1d=[0,din];
diff1=[din,0]-din_1d;
diff1_1d=[0,diff1(1:end-1)];
diff2=[diff1(1:end-1),0]-diff1_1d;
for i=1:r
  temp1(i,:)=diff2(1:end-1);
end
temp2=reshape(temp1,1,length(diff2(1:end-1))*r);
data_int=temp2;
for i=1:length(data_int)
    int1(i)=sum(data_int(1:i));
    int2(i)=sum(int1(1:i));
end
dout=int2;
%************************end of file**********************************