International Journal of Antennas and Propagation

Research Article

A New Approach to Investigation of the Relationship of VLF Signals by Using Longitudinal Analysis Models

Table 4

Covariance matrix of the two stations.
Day1st2nd3rd4th
1st288.47347.93131.34372.24
2nd—421.20158.76450.25
3rd——60.088169.83
4th———482.29