Esempio n. 1
0
        public /*synchronized*/ void processAcc(float[] acc, long sensorTimeStamp)
        {
            mz.set(acc[0], acc[1], acc[2]);

            if (sensorTimeStampAcc != 0L)
            {
                accObservationFunctionForNumericalJacobian(so3SensorFromWorld, mNu);

                double eps = 1.0E-07D;
                for (int dof = 0; dof < 3; dof++)
                {
                    Vector3d delta = processAccVDelta;
                    delta.setZero();
                    delta.setComponent(dof, eps);

                    So3Util.sO3FromMu(delta, processAccTempM1);
                    Matrix3x3d.mult(processAccTempM1, so3SensorFromWorld, processAccTempM2);

                    accObservationFunctionForNumericalJacobian(processAccTempM2, processAccTempV1);

                    Vector3d withDelta = processAccTempV1;

                    Vector3d.sub(mNu, withDelta, processAccTempV2);
                    processAccTempV2.scale(1.0D / eps);
                    mH.setColumn(dof, processAccTempV2);
                }

                mH.transpose(processAccTempM3);
                Matrix3x3d.mult(mP, processAccTempM3, processAccTempM4);
                Matrix3x3d.mult(mH, processAccTempM4, processAccTempM5);
                Matrix3x3d.add(processAccTempM5, mRaccel, mS);

                mS.invert(processAccTempM3);
                mH.transpose(processAccTempM4);
                Matrix3x3d.mult(processAccTempM4, processAccTempM3, processAccTempM5);
                Matrix3x3d.mult(mP, processAccTempM5, mK);

                Matrix3x3d.mult(mK, mNu, mx);

                Matrix3x3d.mult(mK, mH, processAccTempM3);
                processAccTempM4.setIdentity();
                processAccTempM4.minusEquals(processAccTempM3);
                Matrix3x3d.mult(processAccTempM4, mP, processAccTempM3);
                mP.set(processAccTempM3);

                So3Util.sO3FromMu(mx, so3LastMotion);

                Matrix3x3d.mult(so3LastMotion, so3SensorFromWorld, so3SensorFromWorld);

                updateCovariancesAfterMotion();
            }
            else
            {
                So3Util.sO3FromTwoVec(down, mz, so3SensorFromWorld);
            }
            sensorTimeStampAcc = sensorTimeStamp;
        }