UPC-RapidNetwork: STEC Computation

Once the Kalman filter tomography is solved, the latest estimation for every transmitter-receiver phase-continuous arc (typically the best estimated) is subtracted to every corresponding ionospheric combination of carrier phases. In this way one individual Slant Total Electron Content (STEC) is estimated from every transmitter-receiver available at any given measurements time, after applying a wind-up correction and a physical scaling factor.