// the measurement covariance matrix -> put the "real" variance
RealMatrix R = new Array2DRowRealMatrix(new double[] { measurementNoise * measurementNoise });
final ProcessModel pm = new DefaultProcessModel(A, B, Q, x0, P0);
final MeasurementModel mm = new DefaultMeasurementModel(H, R);
final KalmanFilter filter = new KalmanFilter(pm, mm);
final List<Number> xAxis = new ArrayList<Number>();
final List<Number> realVoltageSeries = new ArrayList<Number>();
final List<Number> measuredVoltageSeries = new ArrayList<Number>();