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[RX]

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- added show_H command line switch
[TX]
- added M_QAM command line switch

git-svn-id: http://moon:8086/svn/matlab/trunk@51 801c6759-fa7c-4059-a304-17956f83a07c
This commit is contained in:
jens
2015-05-01 14:47:41 +00:00
parent de0bc4a299
commit 82695cae43
2 changed files with 11 additions and 11 deletions
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ofdm/ofdm_rx.m
+8 -7
View File
@@ -1,8 +1,9 @@
function [sym_out, H, W] = ofdm_rx(filename, foff, SNR, with_cir) function [sym_out, H, W] = ofdm_rx(filename, foff, SNR, with_cir, show_H)
% %
% Example: ofdm_rx('drm-15435-if.wav', -174.65, 400, 0) % [sym_out, H, W] = ofdm_rx(filename, foff, SNR, with_cir, show_H)
% Example: ofdm_rx('xv.wav', 0, 400, 0) % Example: ofdm_rx('drm-15435-if.wav', -174.65, 400, 0, 1)
% or ofdm_rx('yv.wav', 0, 400, 0) % Example: ofdm_rx('xv.wav', 0, 400, 0, 1)
% or ofdm_rx('yv.wav', 0, 400, 0, 1)
close all; close all;
@@ -263,7 +264,7 @@ for k=start:length(Z_)
ZZ = Z_(carrier_indexes, k-symbols_to_delay).'; ZZ = Z_(carrier_indexes, k-symbols_to_delay).';
sym_eq = ZZ ./ H; sym_eq = ZZ ./ H;
sym_out(:, kk) = sym_eq; sym_out(:, kk) = sym_eq;
if 0 if show_H
H_raw(1:2:N) = H_raw(2:2:N); H_raw(1:2:N) = H_raw(2:2:N);
subplot(3, 1, 1) subplot(3, 1, 1)
plot(carriers, abs(H_raw(carrier_indexes)), 'b-', carriers, abs(H), 'r-'); grid; title('abs(H)'); axis([ofdm_spec_occ.kmin ofdm_spec_occ.kmax 0 15+0*max(abs(H))]); title(str); plot(carriers, abs(H_raw(carrier_indexes)), 'b-', carriers, abs(H), 'r-'); grid; title('abs(H)'); axis([ofdm_spec_occ.kmin ofdm_spec_occ.kmax 0 15+0*max(abs(H))]); title(str);
@@ -285,10 +286,10 @@ for k=start:length(Z_)
if (~isempty(fac_c)) if (~isempty(fac_c))
fac_i = fac_c - ofdm_spec_occ.kmin + 1; fac_i = fac_c - ofdm_spec_occ.kmin + 1;
hold on; hold on;
plot(sym_eq(fac_i), '.', 'MarkerSize', 4); plot(sym_eq(fac_i), '+', 'MarkerSize', 4);
pause(0.01); pause(0.01);
grid; title('FAC'); axis([-1 1 -1 1]);
hold off; hold off;
grid; title('FAC'); axis([-1.5 1.5 -1.5 1.5]);
end end
end end
end end
ofdm/ofdm_tx.m
+3 -4
View File
@@ -1,7 +1,7 @@
function [yv xv] = ofdm_tx(mode, bandwidth, N_frames, withData, plot_speed) function [yv xv] = ofdm_tx(mode, bandwidth, N_frames, withData, M_QAM, plot_speed)
% %
% function [yv xv] = ofdm_tx(mode, bandwidth, N_frames, withData, plot_speed) % function [yv xv] = ofdm_tx(mode, bandwidth, N_frames, withData, M_QAM, plot_speed)
% Example : ofdm_tx('B', '10k', 500, 1, 0); % Example : ofdm_tx('B', '10k', 500, 1, 64, 0);
% %
close all; close all;
@@ -14,7 +14,6 @@ WITH_GAIN_REF = 1;
WITH_DATA = withData; WITH_DATA = withData;
DELAY = 100; DELAY = 100;
M_QAM = 64;
RCWIN_ROLLOFF = 0.125; RCWIN_ROLLOFF = 0.125;
% Params % Params