代码搜索：衰落信道
找到约 1,714 项符合「衰落信道」的源代码
代码结果 1,714
www.eeworm.com/read/330110/12916099
m test_rayleigh_pdf.m
function y = test_rayleigh_pdf(r)
%r为信道幅度绝对值！
sigma_u = sqrt(1/2);
figure
%[x,pdf,cdf] = pdf_cdf_gen(abs(r),40);
[x,pdf,cdf] = pdf_cdf_gen(r,80);
pdf_ideal =(x.*(exp(-(x.*x)./(2*sigma_u*si
www.eeworm.com/read/329478/12953408
m creat_channel.m
function[H,H_f] = creat_channel(Mt,Mr,A,N);
% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% A 功率时延谱矢量
% Mt 发送天线数
% Mr 接收天线数
% N 在一个OFDM符号发送天线端的矢量符号数
% 频率选择性瑞利信道，假设复高斯过程在相位和幅度上是独
www.eeworm.com/read/140765/13062592
m test_rayleigh_pdf.m
function y = test_rayleigh_pdf(r)
%r为信道幅度绝对值！
sigma_u = sqrt(1/2);
figure
%[x,pdf,cdf] = pdf_cdf_gen(abs(r),40);
[x,pdf,cdf] = pdf_cdf_gen(r,80);
pdf_ideal =(x.*(exp(-(x.*x)./(2*sigma_u*si
www.eeworm.com/read/316129/13529708
m single_packet.m
function [flag, thres_idx, inf_bits_cnt, inf_bit_errs, raw_bits_cnt, raw_bit_errs] = single_packet(sim_options,snr)
%产生信道冲击响应
cir = get_channel_ir(sim_options);
% 调用transmitter，产生发射信号，返回信息比特和未编码的比特
www.eeworm.com/read/192321/6285139
m test_rayleigh_pdf.m
function y = test_rayleigh_pdf(r)
%r为信道幅度绝对值！
sigma_u = sqrt(1/2);
figure
%[x,pdf,cdf] = pdf_cdf_gen(abs(r),40);
[x,pdf,cdf] = pdf_cdf_gen(r,80);
pdf_ideal =(x.*(exp(-(x.*x)./(2*sigma_u*si
www.eeworm.com/read/492758/6408661
m converpe.m
function[err_rate]=converPe(snr_in_dB,signal)
%噪声功率
E=1;
snr=10^(snr_in_dB/10);
sgma=sqrt((E/snr)/2);
%G,k
G=[1 0 0 1 1;1 1 0 1 1];
k=1;
%编码
u=viterbi_encoder(G,k,signal);
%经信道加高斯燥声
u
www.eeworm.com/read/151957/12158604
m test_rayleigh_pdf.m
function y = test_rayleigh_pdf(r)
%r为信道幅度绝对值！
sigma_u = sqrt(1/2);
figure
%[x,pdf,cdf] = pdf_cdf_gen(abs(r),40);
[x,pdf,cdf] = pdf_cdf_gen(r,80);
pdf_ideal =(x.*(exp(-(x.*x)./(2*sigma_u*si
www.eeworm.com/read/210119/15206375
m qpskdraw.m
%QPSK调制下OFDM系统的误码率
function [ber1] = qpskdraw;
para = 52;%并行信道数
fftlen = 64;%FFT长度
noc = 52;%载波数
nd = 6;%每个仿真循环的OFDM数
m1 = 2;%调制水平：QPSK
gilen = 16;%保护间隔长度
sr = 250000;%OFDM symbol rate (250k
www.eeworm.com/read/438357/1825605
m test_rayleigh_pdf.m
function y = test_rayleigh_pdf(r)
%r为信道幅度绝对值！
sigma_u = sqrt(1/2);
figure
%[x,pdf,cdf] = pdf_cdf_gen(abs(r),40);
[x,pdf,cdf] = pdf_cdf_gen(r,80);
pdf_ideal =(x.*(exp(-(x.*x)./(2*sigma_u*si
www.eeworm.com/read/376218/2711910
m neibianma.m
%tch/fs信道内编码
function u=neibianma(d)
G=[1 0 0 1 1;1 1 0 1 1];
d1=d(1:189);
d2=d(190:267);
k=1;
ch_out=viterbi_encoder(G,k,d1);
u=[ch_out(1:378),d2];