 |
| Titel |
High-resolution wave number spectrum using multi-point measurements in space – the Multi-point Signal Resonator (MSR) technique |
| VerfasserIn |
Y. Narita, K.-H. Glassmeier, U. Motschmann |
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| ISSN |
0992-7689
|
| Digitales Dokument |
URL |
| Erschienen |
In: Annales Geophysicae ; 29, no. 2 ; Nr. 29, no. 2 (2011-02-21), S.351-360 |
| Datensatznummer |
250016974
|
| Publikation (Nr.) |
 copernicus.org/angeo-29-351-2011.pdf |
|
|
|
|
|
| Zusammenfassung |
| A new analysis method is presented that provides
a high-resolution power spectrum in a broad wave number domain
based on multi-point measurements. The analysis technique is referred
to as the Multi-point Signal Resonator (MSR) and it benefits from
Capon's minimum variance method for obtaining the proper power
spectral density of the signal as well as the MUSIC algorithm
(Multiple Signal Classification) for considerably reducing the noise part
in the spectrum. The mathematical foundation of the analysis method is
presented and it is applied to synthetic data as well as Cluster
observations of the interplanetary magnetic field. Using the MSR technique
for Cluster data we find a wave in the solar wind
propagating parallel to the mean magnetic field
with relatively small amplitude, which is not identified by the Capon spectrum.
The Cluster data analysis shows the potential of the MSR technique
for studying waves and turbulence using multi-point measurements. |
| |
|
| Teil von |
|
|
|
|
|
|
|