ivpr team meeting 21 sep 2000 3d visualization techniques in support of remote sensing of space...
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IVPR IVPR Team Team MeetinMeetingg
21 Sep 21 Sep 20002000
3D Visualization Techniques in Support of Remote Sensing of Space PlasmaIvan A. Galkin
UMASS Lowell
IVPR IVPR Team Team MeetinMeetingg
21 Sep 21 Sep 20002000
Contents
IntroductionBackground: Radio Plasma ImagerData management scenario2D solutions: BinBrowser3D solutions: Viz-a-VizOther work
IVPR IVPR Team Team MeetinMeetingg
21 Sep 21 Sep 20002000
Introduction
Irkutsk
• BS in Radiophysics, Irkutsk State University, 1983• MS in Electrical Engineering, UMASS Lowell, 1995• Doctorate studies in Computer Science, UMASS Lowell, 1998-…
IVPR IVPR Team Team MeetinMeetingg
21 Sep 21 Sep 20002000
Background
IMAGE orbit
Magnetosphere
IVPR IVPR Team Team MeetinMeetingg
21 Sep 21 Sep 20002000
Remote Sensing of Plasma
Conditions for RPI signal to return to receiver: Incidence angle
normal to the density gradient
Signal frequency equal to the local plasma cutoff frequency
IVPR IVPR Team Team MeetinMeetingg
21 Sep 21 Sep 20002000
RPI Plasmagram: simulation
IVPR IVPR Team Team MeetinMeetingg
21 Sep 21 Sep 20002000
RPI Plasmagram: actual data
IVPR IVPR Team Team MeetinMeetingg
21 Sep 21 Sep 20002000
Targets of Opportunity
1. Magnetopause
3. Plasmapause,nightside
2. Plasmapause, dayside
IVPR IVPR Team Team MeetinMeetingg
21 Sep 21 Sep 20002000
RPI Direction Finding
y'
x'
EQ=E (t=/2) EI=E (t=)
kR = ±EI x EQ
EI x EQ
a
b
RPI Orthogonal Antenna System Wave Normal as Direction ofArrival, with -ambiguity
IVPR IVPR Team Team MeetinMeetingg
21 Sep 21 Sep 20002000
-ambiguity
z
x
y
Reflection point
Ghost point
Reflection pointm apped to
RPI echom ap
R
R
Ghost echom apped to
RPI echom ap
OrbitalplaneR
R
IVPR IVPR Team Team MeetinMeetingg
21 Sep 21 Sep 20002000
RPI Echomap: actual data
IVPR IVPR Team Team MeetinMeetingg
21 Sep 21 Sep 20002000
RPI Measurement is a Cube
IVPR IVPR Team Team MeetinMeetingg
21 Sep 21 Sep 20002000
RPI Databin Contents
LTD(Time domain)
SSD(Spectral domain)
IVPR IVPR Team Team MeetinMeetingg
21 Sep 21 Sep 20002000
RPI Databin Contents ( cont. )
SMD(Spectral peaks only)
TTD(Time domain, thermal noise)
IVPR IVPR Team Team MeetinMeetingg
21 Sep 21 Sep 20002000
Data Management Scenario
L0
DSN
DHDS
L0.5
UDF L1CDF
To general publicand NSSDC
To Instrument Leads
BP
WWW
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