Time resolution of cosmic noise observations with acorrelation experiment
1Max Planck Institute for Aeronomy, 37191 Katlenburg-Lindau, Germany
2Communications Research center, Faculty of Applied Sciences, Lancaster University, Lancaster, UK
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)
Nielsen, E., Honary, F., and Grill, M.: Time resolution of cosmic noise observations with acorrelation experiment, Ann. Geophys., 22, 1687-1689, doi:10.5194/angeo-22-1687-2004, 2004.