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- cleaned up, removed fc

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git-svn-id: http://moon:8086/svn/matlab/trunk@35 801c6759-fa7c-4059-a304-17956f83a07c
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jens
2015-04-19 19:27:46 +00:00
parent 4b0c3420da
commit f0d05e206c
1 changed files with 3 additions and 7 deletions
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ofdm/ofdm_tx.m
+3 -7
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@@ -3,7 +3,7 @@ function [yv xv] = ofdm_tx(mode, bandwidth, N_frames, withData)
close all; close all;
DO_PLOT = 1; DO_PLOT = 0;
WITH_RCWIN = 1; WITH_RCWIN = 1;
WITH_FREQ_REF = 1; WITH_FREQ_REF = 1;
WITH_TIME_REF = 1; WITH_TIME_REF = 1;
@@ -16,10 +16,7 @@ RCWIN_ROLLOFF = 0.125;
% Params % Params
fa = 48000; fa = 48000;
fc = fa/4; T = 4/fa;
F1 = 750;
F2 = 2250;
F3 = 3000;
[ofdm_params, ofdm_spec_occ] = drm_params(mode, bandwidth); [ofdm_params, ofdm_spec_occ] = drm_params(mode, bandwidth);
@@ -27,7 +24,6 @@ ofdm_params_mode = ofdm_params.mode
ofdm_spec_occ_kmin = ofdm_spec_occ.kmin ofdm_spec_occ_kmin = ofdm_spec_occ.kmin
ofdm_spec_occ_kmax = ofdm_spec_occ.kmax ofdm_spec_occ_kmax = ofdm_spec_occ.kmax
T = 4/fa;
Tu = ofdm_params.nu * T Tu = ofdm_params.nu * T
Tg = ofdm_params.ng * T Tg = ofdm_params.ng * T
Ts = Tu+Tg Ts = Tu+Tg
@@ -111,7 +107,7 @@ grid;
plot(wng); grid; plot(wng); grid;
% Modulate on carrier % Modulate on carrier
yc = exp(j*2*pi.*(0:length(xv)-1)*fc/fa) .* xv; yc = exp(j*2*pi.*(0:length(xv)-1)*0.25) .* xv;
yv = real(yc) + imag(yc); yv = real(yc) + imag(yc);
xv = conj(xv')./abs(max(xv)); xv = conj(xv')./abs(max(xv));