Statistics – Computation
Scientific paper
May 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990sppi.rept...51n&link_type=abstract
In ESA, Space Plasma Physics Investigation by Cluster and Regatta p 51-55 (SEE N91-10417 01-46)
Statistics
Computation
Cluster Mission, Computational Astrophysics, Linear Filters, Magnetohydrodynamic Waves, Phased Arrays, Plasma Waves, Space Plasmas, Spacecraft Configurations, Telescopes, Data Processing, European Space Programs, Mathematical Models, Mission Planning, Spaceborne Astronomy
Scientific paper
The use of the four satellite configuration of the Cluster mission as a frequency dependent phased array is proposed in order to obtain not only a frequency spectrum of complex electromagnetic plasma wave fields in the magnetosphere, magnetosheath, and solar wind but also directional information and mode discrimination. This formulation is shown to be equivalent to a most general linear filter formulation described by a suitable set of transfer functions. The combination of the four satellites and an appropriate set of transfer functions is called a wave telescope. A transmission function to characterize a telescope is introduced. As an example, a special filter to separate waves propagating parallel and antiparallel to a background magnetic field is designed. Application to a complex simulated magnetohydrodynamic wave field illustrates the wave telescope.
Dunlop Malcolm W.
Glassmeier Karl-Heintz
Neubauer Fritz Manfred
Walter Robert
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