fixed units used in controler calculations
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@ -157,20 +157,23 @@ void AcsController::performSafe() {
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guidance.getTargetParamsSafe(sunTargetDir, satRateSafe);
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guidance.getTargetParamsSafe(sunTargetDir, satRateSafe);
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// if MEKF is working
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// if MEKF is working
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double magMomMtq[3] = {0, 0, 0}, errAng = 0.0;
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double magMomMtq[3] = {0, 0, 0}, errAng = 0.0;
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bool magMomMtqValid = false;
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if (result == MultiplicativeKalmanFilter::MEKF_RUNNING) {
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if (result == MultiplicativeKalmanFilter::MEKF_RUNNING) {
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safeCtrl.safeMekf(now, mekfData.quatMekf.value, mekfData.quatMekf.isValid(),
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result = safeCtrl.safeMekf(now, mekfData.quatMekf.value, mekfData.quatMekf.isValid(),
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mgmDataProcessed.magIgrfModel.value, mgmDataProcessed.magIgrfModel.isValid(),
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mgmDataProcessed.magIgrfModel.value,
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susDataProcessed.sunIjkModel.value, susDataProcessed.isValid(),
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mgmDataProcessed.magIgrfModel.isValid(),
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mekfData.satRotRateMekf.value, mekfData.satRotRateMekf.isValid(),
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susDataProcessed.sunIjkModel.value, susDataProcessed.isValid(),
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sunTargetDir, satRateSafe, &errAng, magMomMtq, &magMomMtqValid);
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mekfData.satRotRateMekf.value, mekfData.satRotRateMekf.isValid(),
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sunTargetDir, satRateSafe, &errAng, magMomMtq);
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} else {
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} else {
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safeCtrl.safeNoMekf(
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result = safeCtrl.safeNoMekf(
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now, susDataProcessed.susVecTot.value, susDataProcessed.susVecTot.isValid(),
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now, susDataProcessed.susVecTot.value, susDataProcessed.susVecTot.isValid(),
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susDataProcessed.susVecTotDerivative.value, susDataProcessed.susVecTotDerivative.isValid(),
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susDataProcessed.susVecTotDerivative.value, susDataProcessed.susVecTotDerivative.isValid(),
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mgmDataProcessed.mgmVecTot.value, mgmDataProcessed.mgmVecTot.isValid(),
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mgmDataProcessed.mgmVecTot.value, mgmDataProcessed.mgmVecTot.isValid(),
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mgmDataProcessed.mgmVecTotDerivative.value, mgmDataProcessed.mgmVecTotDerivative.isValid(),
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mgmDataProcessed.mgmVecTotDerivative.value, mgmDataProcessed.mgmVecTotDerivative.isValid(),
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sunTargetDir, satRateSafe, &errAng, magMomMtq, &magMomMtqValid);
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sunTargetDir, satRateSafe, &errAng, magMomMtq);
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}
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if (result == returnvalue::FAILED) {
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// ToDo: this should never ever happen or we are dead. prob add an event at least
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}
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}
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actuatorCmd.cmdDipolMtq(magMomMtq, cmdDipolMtqs);
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actuatorCmd.cmdDipolMtq(magMomMtq, cmdDipolMtqs);
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@ -1,11 +1,3 @@
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/*
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* Detumble.cpp
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*
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* Created on: 17 Aug 2022
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* Author: Robin Marquardt
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*/
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#include "Detumble.h"
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#include "Detumble.h"
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#include <fsfw/globalfunctions/constants.h>
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#include <fsfw/globalfunctions/constants.h>
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@ -31,6 +23,12 @@ ReturnValue_t Detumble::bDotLaw(const double *magRate, const bool magRateValid,
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if (!magRateValid || !magFieldValid) {
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if (!magRateValid || !magFieldValid) {
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return DETUMBLE_NO_SENSORDATA;
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return DETUMBLE_NO_SENSORDATA;
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}
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}
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// change unit from uT to T
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double magFieldT[3] = {0, 0, 0}, magRateT[3] = {0, 0, 0};
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VectorOperations<double>::mulScalar(magField, 1e-6, magFieldT, 3);
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VectorOperations<double>::mulScalar(magRate, 1e-6, magRateT, 3);
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double gain = detumbleParameter->gainD;
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double gain = detumbleParameter->gainD;
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double factor = -gain / pow(VectorOperations<double>::norm(magField, 3), 2);
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double factor = -gain / pow(VectorOperations<double>::norm(magField, 3), 2);
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VectorOperations<double>::mulScalar(magRate, factor, magMom, 3);
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VectorOperations<double>::mulScalar(magRate, factor, magMom, 3);
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@ -32,15 +32,13 @@ ReturnValue_t SafeCtrl::safeMekf(timeval now, double *quatBJ, bool quatBJValid,
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double *magFieldModel, bool magFieldModelValid,
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double *magFieldModel, bool magFieldModelValid,
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double *sunDirModel, bool sunDirModelValid, double *satRateMekf,
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double *sunDirModel, bool sunDirModelValid, double *satRateMekf,
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bool rateMekfValid, double *sunDirRef, double *satRatRef,
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bool rateMekfValid, double *sunDirRef, double *satRatRef,
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double *outputAngle, double *outputMagMomB, bool *outputValid) {
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double *outputAngle, double *outputMagMomB) {
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if (!quatBJValid || !magFieldModelValid || !sunDirModelValid || !rateMekfValid) {
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if (!quatBJValid || !magFieldModelValid || !sunDirModelValid || !rateMekfValid) {
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*outputValid = false;
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return SAFECTRL_MEKF_INPUT_INVALID;
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return SAFECTRL_MEKF_INPUT_INVALID;
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}
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}
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double kRate = 0, kAlign = 0;
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double kRate = safeModeControllerParameters->k_rate_mekf;
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kRate = safeModeControllerParameters->k_rate_mekf;
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double kAlign = safeModeControllerParameters->k_align_mekf;
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kAlign = safeModeControllerParameters->k_align_mekf;
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// Calc sunDirB ,magFieldB with mekf output and model
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// Calc sunDirB ,magFieldB with mekf output and model
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double dcmBJ[3][3] = {{0, 0, 0}, {0, 0, 0}, {0, 0, 0}};
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double dcmBJ[3][3] = {{0, 0, 0}, {0, 0, 0}, {0, 0, 0}};
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@ -49,22 +47,22 @@ ReturnValue_t SafeCtrl::safeMekf(timeval now, double *quatBJ, bool quatBJValid,
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MatrixOperations<double>::multiply(*dcmBJ, sunDirModel, sunDirB, 3, 3, 1);
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MatrixOperations<double>::multiply(*dcmBJ, sunDirModel, sunDirB, 3, 3, 1);
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MatrixOperations<double>::multiply(*dcmBJ, magFieldModel, magFieldB, 3, 3, 1);
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MatrixOperations<double>::multiply(*dcmBJ, magFieldModel, magFieldB, 3, 3, 1);
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double crossSun[3] = {0, 0, 0};
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// change unit from uT to T
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VectorOperations<double>::mulScalar(magFieldB, 1e-6, magFieldB, 3);
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double crossSun[3] = {0, 0, 0};
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VectorOperations<double>::cross(sunDirRef, sunDirB, crossSun);
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VectorOperations<double>::cross(sunDirRef, sunDirB, crossSun);
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double normCrossSun = VectorOperations<double>::norm(crossSun, 3);
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double normCrossSun = VectorOperations<double>::norm(crossSun, 3);
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// calc angle alpha between sunDirRef and sunDIr
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// calc angle alpha between sunDirRef and sunDIr
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double alpha = 0, dotSun = 0;
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double dotSun = VectorOperations<double>::dot(sunDirRef, sunDirB);
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dotSun = VectorOperations<double>::dot(sunDirRef, sunDirB);
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double alpha = acos(dotSun);
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alpha = acos(dotSun);
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// Law Torque calculations
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// Law Torque calculations
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double torqueCmd[3] = {0, 0, 0}, torqueAlign[3] = {0, 0, 0}, torqueRate[3] = {0, 0, 0},
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double torqueCmd[3] = {0, 0, 0}, torqueAlign[3] = {0, 0, 0}, torqueRate[3] = {0, 0, 0},
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torqueAll[3] = {0, 0, 0};
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torqueAll[3] = {0, 0, 0};
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double scalarFac = 0;
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double scalarFac = kAlign * alpha / normCrossSun;
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scalarFac = kAlign * alpha / normCrossSun;
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VectorOperations<double>::mulScalar(crossSun, scalarFac, torqueAlign, 3);
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VectorOperations<double>::mulScalar(crossSun, scalarFac, torqueAlign, 3);
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double rateSafeMode[3] = {0, 0, 0};
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double rateSafeMode[3] = {0, 0, 0};
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@ -82,23 +80,22 @@ ReturnValue_t SafeCtrl::safeMekf(timeval now, double *quatBJ, bool quatBJValid,
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VectorOperations<double>::mulScalar(torqueMgt, 1 / pow(normMag, 2), outputMagMomB, 3);
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VectorOperations<double>::mulScalar(torqueMgt, 1 / pow(normMag, 2), outputMagMomB, 3);
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*outputAngle = alpha;
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*outputAngle = alpha;
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*outputValid = true;
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return returnvalue::OK;
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return returnvalue::OK;
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}
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}
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// Will be the version in worst case scenario in event of no working MEKF (nor GYRs)
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// Will be the version in worst case scenario in event of no working MEKF (nor GYRs)
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void SafeCtrl::safeNoMekf(timeval now, double *susDirB, bool susDirBValid, double *sunRateB,
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ReturnValue_t SafeCtrl::safeNoMekf(timeval now, double *susDirB, bool susDirBValid, double *sunRateB,
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bool sunRateBValid, double *magFieldB, bool magFieldBValid,
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bool sunRateBValid, double *magFieldB, bool magFieldBValid,
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double *magRateB, bool magRateBValid, double *sunDirRef,
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double *magRateB, bool magRateBValid, double *sunDirRef,
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double *satRateRef, double *outputAngle, double *outputMagMomB,
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double *satRateRef, double *outputAngle, double *outputMagMomB) {
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bool *outputValid) {
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// Check for invalid Inputs
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// Check for invalid Inputs
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if (!susDirBValid || !magFieldBValid || !magRateBValid) {
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if (!susDirBValid || !magFieldBValid || !magRateBValid) {
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*outputValid = false;
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return returnvalue::FAILED;
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return;
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}
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}
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// change unit from uT to T
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VectorOperations<double>::mulScalar(magFieldB, 1e-6, magFieldB, 3);
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// normalize sunDir and magDir
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// normalize sunDir and magDir
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double magDirB[3] = {0, 0, 0};
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double magDirB[3] = {0, 0, 0};
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VectorOperations<double>::normalize(magFieldB, magDirB, 3);
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VectorOperations<double>::normalize(magFieldB, magDirB, 3);
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@ -108,13 +105,11 @@ void SafeCtrl::safeNoMekf(timeval now, double *susDirB, bool susDirBValid, doubl
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double cosAngleSunMag = VectorOperations<double>::dot(magDirB, susDirB);
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double cosAngleSunMag = VectorOperations<double>::dot(magDirB, susDirB);
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// Rate parallel to sun direction and magnetic field direction
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// Rate parallel to sun direction and magnetic field direction
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double rateParaSun = 0, rateParaMag = 0;
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double dotSunRateMag = VectorOperations<double>::dot(sunRateB, magDirB);
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double dotSunRateMag = 0, dotmagRateSun = 0, rateFactor = 0;
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double dotmagRateSun = VectorOperations<double>::dot(magRateB, susDirB);
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dotSunRateMag = VectorOperations<double>::dot(sunRateB, magDirB);
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double rateFactor = 1 - pow(cosAngleSunMag, 2);
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dotmagRateSun = VectorOperations<double>::dot(magRateB, susDirB);
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double rateParaSun = (dotmagRateSun + cosAngleSunMag * dotSunRateMag) / rateFactor;
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rateFactor = 1 - pow(cosAngleSunMag, 2);
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double rateParaMag = (dotSunRateMag + cosAngleSunMag * dotmagRateSun) / rateFactor;
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rateParaSun = (dotmagRateSun + cosAngleSunMag * dotSunRateMag) / rateFactor;
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rateParaMag = (dotSunRateMag + cosAngleSunMag * dotmagRateSun) / rateFactor;
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// Full rate or estimate
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// Full rate or estimate
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double estSatRate[3] = {0, 0, 0};
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double estSatRate[3] = {0, 0, 0};
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@ -130,7 +125,7 @@ void SafeCtrl::safeNoMekf(timeval now, double *susDirB, bool susDirBValid, doubl
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* is sufficiently large */
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* is sufficiently large */
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double angleSunMag = acos(cosAngleSunMag);
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double angleSunMag = acos(cosAngleSunMag);
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if (angleSunMag < safeModeControllerParameters->sunMagAngleMin) {
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if (angleSunMag < safeModeControllerParameters->sunMagAngleMin) {
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return;
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return returnvalue::FAILED;
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}
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}
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// Rate for Torque Calculation
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// Rate for Torque Calculation
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@ -138,9 +133,8 @@ void SafeCtrl::safeNoMekf(timeval now, double *susDirB, bool susDirBValid, doubl
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VectorOperations<double>::subtract(estSatRate, satRateRef, diffRate, 3);
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VectorOperations<double>::subtract(estSatRate, satRateRef, diffRate, 3);
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// Torque Align calculation
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// Torque Align calculation
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double kRateNoMekf = 0, kAlignNoMekf = 0;
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double kRateNoMekf = safeModeControllerParameters->k_rate_no_mekf;
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kRateNoMekf = safeModeControllerParameters->k_rate_no_mekf;
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double kAlignNoMekf = safeModeControllerParameters->k_align_no_mekf;
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kAlignNoMekf = safeModeControllerParameters->k_align_no_mekf;
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double cosAngleAlignErr = VectorOperations<double>::dot(sunDirRef, susDirB);
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double cosAngleAlignErr = VectorOperations<double>::dot(sunDirRef, susDirB);
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double crossSusSunRef[3] = {0, 0, 0};
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double crossSusSunRef[3] = {0, 0, 0};
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@ -171,5 +165,5 @@ void SafeCtrl::safeNoMekf(timeval now, double *susDirB, bool susDirBValid, doubl
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std::memcpy(outputMagMomB, magMomB, 3 * sizeof(double));
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std::memcpy(outputMagMomB, magMomB, 3 * sizeof(double));
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*outputAngle = angleAlignErr;
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*outputAngle = angleAlignErr;
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*outputValid = true;
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return returnvalue::OK;
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}
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}
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@ -23,14 +23,12 @@ class SafeCtrl {
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bool magFieldModelValid, double *sunDirModel, bool sunDirModelValid,
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bool magFieldModelValid, double *sunDirModel, bool sunDirModelValid,
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double *satRateMekf, bool rateMekfValid, double *sunDirRef,
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double *satRateMekf, bool rateMekfValid, double *sunDirRef,
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double *satRatRef, // From Guidance (!)
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double *satRatRef, // From Guidance (!)
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double *outputAngle, double *outputMagMomB, bool *outputValid);
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double *outputAngle, double *outputMagMomB);
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void safeNoMekf(timeval now, double *susDirB, bool susDirBValid, double *sunRateB,
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ReturnValue_t safeNoMekf(timeval now, double *susDirB, bool susDirBValid, double *sunRateB,
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bool sunRateBValid, double *magFieldB, bool magFieldBValid, double *magRateB,
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bool sunRateBValid, double *magFieldB, bool magFieldBValid,
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bool magRateBValid, double *sunDirRef, double *satRateRef, double *outputAngle,
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double *magRateB, bool magRateBValid, double *sunDirRef,
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double *outputMagMomB, bool *outputValid);
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double *satRateRef, double *outputAngle, double *outputMagMomB);
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void idleSunPointing(); // with reaction wheels
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protected:
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protected:
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private:
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private:
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