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Merge pull request #71 from ICRAR/cgray_refactor_phaserotate
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102 changes: 102 additions & 0 deletions
102
src/icrar/leap-accelerate/algorithm/casa/PhaseMatrixFunction.cc
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,102 @@ | ||
| /** | ||
| * ICRAR - International Centre for Radio Astronomy Research | ||
| * (c) UWA - The University of Western Australia | ||
| * Copyright by UWA(in the framework of the ICRAR) | ||
| * All rights reserved | ||
| * | ||
| * This library is free software; you can redistribute it and/or | ||
| * modify it under the terms of the GNU Lesser General Public | ||
| * License as published by the Free Software Foundation; either | ||
| * version 2.1 of the License, or (at your option) any later version. | ||
| * | ||
| * This library is distributed in the hope that it will be useful, | ||
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.See the GNU | ||
| * Lesser General Public License for more details. | ||
| * | ||
| * You should have received a copy of the GNU Lesser General Public | ||
| * License along with this library; if not, write to the Free Software | ||
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | ||
| * MA 02111 - 1307 USA | ||
| */ | ||
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| #include "PhaseMatrixFunction.h" | ||
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| #include <icrar/leap-accelerate/math/math.h> | ||
| #include <icrar/leap-accelerate/math/cpu/vector.h> | ||
| #include <icrar/leap-accelerate/math/casacore_helper.h> | ||
| #include <icrar/leap-accelerate/math/casa/matrix.h> | ||
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| #include <casacore/casa/Arrays/Matrix.h> | ||
| #include <casacore/casa/Arrays/Vector.h> | ||
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| #include <set> | ||
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| using namespace casacore; | ||
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| namespace icrar | ||
| { | ||
| namespace casalib | ||
| { | ||
| std::pair<casacore::Matrix<double>, casacore::Vector<std::int32_t>> PhaseMatrixFunction( | ||
| const casacore::Vector<std::int32_t>& a1, | ||
| const casacore::Vector<std::int32_t>& a2, | ||
| int refAnt) | ||
| { | ||
| if(a1.size() != a2.size()) | ||
| { | ||
| throw std::invalid_argument("a1 and a2 must be equal size"); | ||
| } | ||
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| auto unique = std::set<std::int32_t>(a1.cbegin(), a1.cend()); | ||
| unique.insert(a2.cbegin(), a2.cend()); | ||
| int nAnt = unique.size(); | ||
| if(refAnt >= nAnt - 1) | ||
| { | ||
| throw std::invalid_argument("RefAnt out of bounds"); | ||
| } | ||
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| Matrix<double> A = Matrix<double>(a1.size() + 1, std::max(icrar::ArrayMax(a1), icrar::ArrayMax(a2)) + 1); | ||
| A = 0.0; | ||
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| Vector<int> I = Vector<int>(a1.size() + 1); | ||
| I = -1; | ||
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| int STATIONS = A.shape()[1]; //TODO verify correctness | ||
| int k = 0; | ||
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| for(size_t n = 0; n < a1.size(); n++) | ||
| { | ||
| if(a1(n) != a2(n)) | ||
| { | ||
| if((refAnt < 0) || ((refAnt >= 0) && ((a1(n) == refAnt) || (a2(n) == refAnt)))) | ||
| { | ||
| A(k, a1(n)) = 1.0; // set scalear | ||
| A(k, a2(n)) = -1.0; // set scalear | ||
| I(k) = n; //set scalear | ||
| k++; | ||
| } | ||
| } | ||
| } | ||
| if(refAnt < 0) | ||
| { | ||
| refAnt = 0; | ||
| } | ||
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| A(k, refAnt) = 1; | ||
| k++; | ||
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| auto Atemp = casacore::Matrix<double>(k, STATIONS); | ||
| Atemp = A(Slice(0, k), Slice(0, STATIONS)); | ||
| A.resize(0,0); | ||
| A = Atemp; | ||
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| auto Itemp = casacore::Vector<int>(k); | ||
| Itemp = I(Slice(0, k)); | ||
| I.resize(0); | ||
| I = Itemp; | ||
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| return std::make_pair(A, I); | ||
| } | ||
| } | ||
| } |
51 changes: 51 additions & 0 deletions
51
src/icrar/leap-accelerate/algorithm/casa/PhaseMatrixFunction.h
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,51 @@ | ||
| /** | ||
| * ICRAR - International Centre for Radio Astronomy Research | ||
| * (c) UWA - The University of Western Australia | ||
| * Copyright by UWA(in the framework of the ICRAR) | ||
| * All rights reserved | ||
| * | ||
| * This library is free software; you can redistribute it and/or | ||
| * modify it under the terms of the GNU Lesser General Public | ||
| * License as published by the Free Software Foundation; either | ||
| * version 2.1 of the License, or (at your option) any later version. | ||
| * | ||
| * This library is distributed in the hope that it will be useful, | ||
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.See the GNU | ||
| * Lesser General Public License for more details. | ||
| * | ||
| * You should have received a copy of the GNU Lesser General Public | ||
| * License along with this library; if not, write to the Free Software | ||
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | ||
| * MA 02111 - 1307 USA | ||
| */ | ||
|
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| #pragma once | ||
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| #include <casacore/casa/Arrays/Matrix.h> | ||
| #include <casacore/casa/Arrays/Vector.h> | ||
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| #include <utility> | ||
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| namespace icrar | ||
| { | ||
| namespace casalib | ||
| { | ||
| /** | ||
| * @brief Form Phase Matrix | ||
| * Given the antenna lists from MS and (optionally) RefAnt & Map: | ||
| * If non-negative RefAnt is provided it only forms the matrix for baselines with that antenna. | ||
| * If True Map is provided it returns the index map for the matrix (only useful if RefAnt set). | ||
| * | ||
| * This function generates and returns the linear matrix for the phase calibration (only) | ||
| * @param a1 indexes of 1st antenna of each baselines | ||
| * @param a2 indexes of 2nd antenna of each baselines | ||
| * @param refAnt the reference antenna (0, 1), -1 | ||
| * @return std::pair<casacore::Matrix<double>, casacore::Vector<std::int32_t>> | ||
| */ | ||
| std::pair<casacore::Matrix<double>, casacore::Vector<std::int32_t>> PhaseMatrixFunction( | ||
| const casacore::Vector<std::int32_t>& a1, | ||
| const casacore::Vector<std::int32_t>& a2, | ||
| int refAnt); | ||
| } | ||
| } |
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