资源简介

本程序是MIMO-OFDM 系统的信道估计程序,包括导频设计,信道建模和常见的信道估计方法,对初学者有用 (This program is a channel estimation program for MIMO-OFDM system, including pilot design, channel modeling and common channel estimation methods, useful for beginners)

资源截图

代码片段和文件信息

function C=adaptive(HNR)
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% 功能:   自适应的比特分配:按照信道响应降序排列子载波间争夺比特和功率
%         步长为2
% 输入:   H为信道的参数
%         N为子载波数
% 输出:   C得到的比特分配
% 作者:郭莹,2004.3
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

dex=zeros(N1);
x=zeros(N1);
H=abs(H);
for a=1:N
   x(a)=sum((H>H(a)))+1;
   for t=1:20
   if dex(x(a))~=0
       x(a)=x(a)+1;
   else break
   end
  end
   dex(x(a))=a;
end

C=R/N*ones(N1);
for m=1:N-1
    for n=N:-1:m+1
        if C(dex(m))>3
            break
        end
        if C(dex(n))==0
           continue
        end
        a=H(dex(m))^2;
        b=H(dex(n))^2; 
        switch (C(dex(n)))
          case 1 
             if a>2*b
              C(de

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     文件        1093  2004-03-11 11:02  adaptive.m
     文件        1144  2004-03-12 09:53  adaptive_power.m
     文件         909  2004-04-15 07:40  adaptive_power1.m
     文件        1796  2004-06-11 11:32  add_freqdomain_reponse.m
     文件        4388  2004-05-26 15:42  add_training.m
     文件        6175  2004-05-26 09:47  adpt_mod_para.m
     文件         437  2000-03-03 23:08  bin_state.m
     文件        1273  2004-06-10 14:04  BLAST_decode.m
     文件      107336  2005-01-12 11:29  ce_txdiv.mat
     文件        2753  2004-05-29 14:56  channel.m
     文件        1890  2004-06-14 16:03  channel_coding.m
     文件        2993  2004-06-14 11:32  channel_decoding.m
     文件        9994  2004-12-23 11:09  channel_estimator.m
     文件        4538  2004-06-23 13:07  channel_gen.m
     文件        1229  2004-04-05 20:07  coarse_freq_syn.m
     文件        1491  2004-06-05 13:38  decode1.m
     文件         831  2004-06-10 13:10  decode_MMSE.m
     文件        3006  2004-03-11 23:08  demod_sym.m
     文件        3207  2004-06-10 15:20  demodu_sym.m
     文件        1377  2004-06-10 15:20  demodulator.m
     文件        1134  2000-03-03 23:08  demultiplex.m
     文件         653  2000-03-03 23:08  encode_bit.m
     文件        1780  2004-06-10 17:58  encoderm.m
     文件        5529  2004-07-29 13:54  estimator_linear_comb.m
     文件        2635  2004-06-08 23:22  estimator_ls.m
     文件        1839  2004-12-06 12:02  estimator_ls_txdiv.m
     文件        2177  2004-06-08 14:11  estimator_mmse.m
     文件     1003568  2004-12-24 15:39  fading_jakes.mat
     文件        1335  2004-04-05 19:32  fine_freq_syn.m
     文件        4918  2004-12-24 15:42  frame_timing.m
     文件        2569  2004-12-24 15:18  framing.m
............此处省略38个文件信息

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