Revised single‐spacecraft method for determining wave vector k and resolving space‐time ambiguity

A practical method is proposed for determining the wave vector of waves from single‐spacecraft measurements. This wave vector knowledge can then be used to remove the space‐time ambiguity produced by frequency Doppler shift associated with spacecraft motion. The method involves applying the Wiener‐K...

Full description

Saved in:
Bibliographic Details
Published in:Journal of geophysical research. Space physics 2016-09, Vol.121 (9), p.8589-8599
Main Author: Bellan, P. M.
Format: Article
Language:English
Subjects:
Ambiguity
Autocorrelation
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
Doppler effect
Geophysics
k‐vector
Magnetic fields
measurement
Oscillations
Spacecraft
Spacecraft motion
Spacetime
spectrum
turbulence
waves
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A practical method is proposed for determining the wave vector of waves from single‐spacecraft measurements. This wave vector knowledge can then be used to remove the space‐time ambiguity produced by frequency Doppler shift associated with spacecraft motion. The method involves applying the Wiener‐Khinchin theorem to cross correlations of the current and magnetic field oscillations and to autocorrelations of the magnetic field oscillations. The method requires that each wave frequency component map to a unique wave vector, a condition presumed true in many spacecraft measurement situations. Examples validating the method are presented. Key Points I present a method for measuring wave vector using a single spacecraft The method resolves space‐time ambiguity of single space‐craft measurements The plasma‐frame wave frequency can be deduced from a moving spacecraft
ISSN:2169-9380
2169-9402
DOI:10.1002/2016JA022827