Articles | Volume 22, issue 5
https://doi.org/10.5194/angeo-22-1687-2004
https://doi.org/10.5194/angeo-22-1687-2004
08 Apr 2004
 | 08 Apr 2004

Time resolution of cosmic noise observations with acorrelation experiment

E. Nielsen, F. Honary, and M. Grill

Abstract. A radio wave correlation experiment using a Mills Cross technique can be used to observe the cosmic noise intensity from the ground for the purpose of determining the absorption in the ionosphere. To ensure a time resolution of 10 to 20s of the absorption observations, it is necessary that the autocorrelation function of the signal received within a wanted spatial resolution and in a given receiver is >8% of the total signal amplitude incident on that receiver.

Key words. Radio Science (Instruments and techniques; Interferometry; Ionospheric physics)