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powersas.m/util/findCommonPoints.m

90 lines
3.8 KiB

function [tt,sc1x,sc2x]=findCommonPoints(tt1,sc1,tt2,sc2,tt)
% Regulate two series with different time steps tt1/tt2 to the same time steps tt
%
% FUNCTION findCommonPoints
%
% Author: Rui Yao <ruiyao@ieee.org>
%
% Copyright (C) 2021, UChicago Argonne, LLC. All rights reserved.
%
% OPEN SOURCE LICENSE
%
% Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
%
% 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
% 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
% 3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
%
%
% ******************************************************************************************************
% DISCLAIMER
%
% THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED
% WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
% PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY
% DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
% PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
% CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
% OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
% ***************************************************************************************************
%
% INPUT
% tt1 - Time series 1
% sc1 - State series corresponding to time steps tt1
% tt2 - Time series 2
% sc2 - State series corresponding to time steps tt2
% tt - Regulated time series
%
% OUTPUT
% tt - Regulated time series
% sc1x - Regulated state series 1
% sc2x - Regulated state series 2
%
sc1x=zeros(size(sc1,1),size(tt,2));
sc2x=zeros(size(sc2,1),size(tt,2));
tth=1e-8;
for i=1:size(tt,2)
idxttst=find(tt>=tt(i),1);
idxtten=find(tt<=tt(i),1,'last');
idx1st=find(tt1<=tt(i),1,'last');
idx1en=find(tt1>=tt(i),1);
if idx1st==idx1en
sc1x(:,i)=sc1(:,idx1st);
else
if abs(tt1(idx1en)-tt1(idx1st))<tth
if idxttst==idxtten
sc1x(:,i)=(sc1(:,idx1st)+sc1(:,idx1en))/2;
else
idx1streal=min([idx1st,idx1en]);
idx1enreal=max([idx1st,idx1en]);
sc1x(:,i)=sc1(:,idx1streal+round((i-idxttst)*(idx1enreal-idx1streal)/(idxtten-idxttst)));
end
else
sc1x(:,i)=(sc1(:,idx1st)*(tt1(idx1en)-tt(i))+sc1(:,idx1en)*(tt(i)-tt1(idx1st)))/...
(tt1(idx1en)-tt1(idx1st));
end
end
idx2st=find(tt2<=tt(i),1,'last');
idx2en=find(tt2>=tt(i),1);
if idx2st==idx2en
sc2x(:,i)=sc2(:,idx2st);
else
if abs(tt2(idx2en)-tt2(idx2st))<tth
if idxttst==idxtten
sc2x(:,i)=(sc2(:,idx2st)+sc2(:,idx2en))/2;
else
idx2streal=min([idx2st,idx2en]);
idx2enreal=max([idx2st,idx2en]);
sc2x(:,i)=sc2(:,idx2streal+round((i-idxttst)*(idx2enreal-idx2streal)/(idxtten-idxttst)));
end
else
sc2x(:,i)=(sc2(:,idx2st)*(tt2(idx2en)-tt(i))+sc2(:,idx2en)*(tt(i)-tt2(idx2st)))/...
(tt2(idx2en)-tt2(idx2st));
end
end
end
end