The Solar Probe Plus Radio Frequency Spectrometer: Measurement requirements, analog design, and digital signal processing

Autor: Milan Maksimovic, N. Carruth, Trevor A. Bowen, D. Seitz, Michel Moncuquet, Keith Goetz, J. C. Martínez-Oliveros, David Sundkvist, Peter Harvey, Marc Pulupa, Pascal Saint-Hilaire, Stuart D. Bale, John W. Bonnell, D. Gordon
Přispěvatelé: Space Sciences Laboratory [Berkeley] (SSL), University of California [Berkeley], University of California-University of California, School of Physics and Astronomy [Minneapolis], University of Minnesota [Twin Cities] (UMN), University of Minnesota System-University of Minnesota System, NASA Goddard Space Flight Center (GSFC), Laboratoire d'études spatiales et d'instrumentation en astrophysique (LESIA), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Swedish Institute of Space Physics [Kiruna] (IRF), University of California [Berkeley] (UC Berkeley), University of California (UC)-University of California (UC)
Rok vydání: 2017
Předmět:
Zdroj: Journal of Geophysical Research Space Physics
Journal of Geophysical Research Space Physics, American Geophysical Union/Wiley, 2017, 122 (3), pp.2836-2854. ⟨10.1002/2016JA023345⟩
Journal of Geophysical Research Space Physics, 2017, 122 (3), pp.2836-2854. ⟨10.1002/2016JA023345⟩
ISSN: 2169-9402
2169-9380
DOI: 10.1002/2016ja023345
Popis: The Radio Frequency Spectrometer (RFS) is a two channel digital receiver and spectrometer, which will make remote sensing observations of radio waves and in situ measurements of electrostatic and electromagnetic fluctuations in the solar wind. A part of the FIELDS suite for Solar Probe Plus (SPP), the RFS is optimized for measurements in the inner heliosphere, where solar radio bursts are more intense and the plasma frequency is higher compared to previous measurements at distances of 1 AU or greater. The inputs to the RFS receiver are the four electric antennas mounted near the front of the SPP spacecraft, and a single axis of the SPP search coil magnetometer (SCM). Each RFS channel selects a monopole or dipole antenna input, or the SCM input, via multiplexers. The primary data products from the RFS are auto and cross spectra from the selected inputs. The spectra are calculated using a polyphase filter bank (PFB), which enables the measurement of low amplitude signals of interest in the presence of high amplitude narrowband noise generated by spacecraft systems. We discuss the science signals of interest driving the RFS measurement objectives, describe the RFS analog design and digital signal processing, and show examples of current performance.
Databáze: OpenAIRE
Externí odkaz: