The computational efficiency of the proposed method with both
diagonalisation algorithms is investigated, comparing the execution
times required in MATLAB for the evaluation of RFs with the
corresponding FD simulations, neglecting the calculation time of
the pul parameters. The results are summarised in Table 5 for the
derivation of the first aerial and coaxial RF in the 10 km
open-circuited case of Figs. 4 and 6, respectively. It is evident that
the proposed method with both diagonalisation algorithms is more
time-efficient than the FD model, which requires the analytical
modelling and simulation of the examined configuration.
Moreover, the QR algorithm is faster than the LM diagonalisation
procedure, which however is compensated when more than one
RFs need to be examined.