mirror of https://github.com/PentHertz/srsLTE.git
34 lines
670 B
Matlab
34 lines
670 B
Matlab
function [ fs ] = check_pss( x, N_id_2, threshold)
|
|
%CHECK_PSS Summary of this function goes here
|
|
% Detailed explanation goes here
|
|
flen=9600;
|
|
n=length(x);
|
|
nf=floor(n/flen);
|
|
|
|
xf=reshape(x(1:nf*flen),flen,[]);
|
|
|
|
fs=zeros(nf,1);
|
|
cfo=zeros(nf,1);
|
|
cfo2=zeros(nf,1);
|
|
m_p=zeros(nf,1);
|
|
for i=1:nf
|
|
[fs(i) cfo(i) m_p(i)]=find_pss(xf(:,i),N_id_2,false, threshold);
|
|
end
|
|
|
|
fs=fs+960;
|
|
[sfo sfo_v]=srslte_sfo_estimate(fs, 5/1000);
|
|
|
|
subplot(1,3,1)
|
|
plot(1:nf,fs)
|
|
subplot(1,3,2)
|
|
plot(1:nf, cfo)
|
|
if (nf > 0)
|
|
axis([0 nf -0.5 0.5])
|
|
end
|
|
subplot(1,3,3)
|
|
plot(m_p)
|
|
fprintf('cfo_mean=%g Hz, cfo_std=%g Hz, m_p=%g sfo=%g Hz\n',15000*nanmean(cfo),15000*nanstd(cfo), nanmean(m_p), sfo)
|
|
end
|
|
|
|
|