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Commit before first big baudrate sweep

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This commit is contained in:
Silas Labor Zizou
2024-10-24 19:41:59 +02:00
parent cfd1bdb513
commit bafc7f12b7
11 changed files with 588 additions and 318 deletions
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14
Classes/00_signals/Signal.m
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@@ -510,7 +510,7 @@ classdef Signal
end
%%
function [obj,S] = tsynch(obj,options)
function [obj,S,isFlipped] = tsynch(obj,options)
% time sync and cut
arguments
obj Signal
@@ -525,14 +525,16 @@ classdef Signal
q = obj.fs/options.fs_ref;
b = options.reference.resample("fs_in",options.fs_ref,"fs_out",obj.fs).normalize("mode","oneone").signal;
max_occurences = floor(length(a)/length(b));
%estimate delay between signals
[co,lags] = xcorr(a,b);
[~,pos] = max(co);
[~,pos] = max(abs(co));
D = lags(pos);
%estimate start pos of signal
maxpeaknum = floor(length(a)/length(b));
[pks,pkpos] = findpeaks(co./max(co),'MinPeakDistance',length(b)/2,'MinPeakHeight',0.2,'NPeaks',maxpeaknum);
[pks,pkpos] = findpeaks(abs(co./max(co)),'MinPeakDistance',length(b)/2,'MinPeakHeight',0.2,'NPeaks',maxpeaknum);
shifts = lags(pkpos);
%Cut occurences of ref signal from signal (only positive shifts)
@@ -543,6 +545,12 @@ classdef Signal
S{end+1,1} = sig;
end
%
isFlipped=0;
if all(sign(co(pkpos)))
isFlipped = 1;
end
%return/keep the sinal with the highest correlation (only within positive shifts)
[~,idx]=max(pks(shifts>0));
obj.signal = S{idx}.signal;