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- plot df_track

git-svn-id: http://moon:8086/svn/matlab/trunk@53 801c6759-fa7c-4059-a304-17956f83a07c
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jens
2015-05-02 08:59:03 +00:00
parent 42cf28baf6
commit 1992026489
1 changed files with 6 additions and 1 deletions
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ofdm/ofdm_rx.m
+6 -1
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@@ -244,6 +244,7 @@ H_pilots = [];
sym_out = []; sym_out = [];
kk = 1; kk = 1;
H_ = []; H_ = [];
df_track_ = [];
for k=start:length(Z_) for k=start:length(Z_)
%shifted symbol index %shifted symbol index
@@ -255,7 +256,8 @@ for k=start:length(Z_)
carrier_gain_bins = c2i(N, carrier_gain); carrier_gain_bins = c2i(N, carrier_gain);
if ~isempty(H_pilots) if ~isempty(H_pilots)
delta_freq_offset = fs/(2*pi*N)*angle( H_pilots * conj(H2_)) df_track = fs/(2*pi*N)*angle( H_pilots * conj(H2_));
df_track_ = [df_track_ df_track];
end end
H2_ = H_; H2_ = H_;
H_= Z_(carrier_gain_bins, k)./(mag_gain.*exp(j*2*pi*phi_gain/1024)).'; H_= Z_(carrier_gain_bins, k)./(mag_gain.*exp(j*2*pi*phi_gain/1024)).';
@@ -307,5 +309,8 @@ for k=start:length(Z_)
end end
figure;
plot(df_track_); grid; title('df_{track}');
function Y = spec_order(N, X) function Y = spec_order(N, X)
Y = [X(N/2+1:N)' X(1:N/2)']'; Y = [X(N/2+1:N)' X(1:N/2)']';