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3D Visualization Techniques in Support of Remote Sensing of Space PlasmaIvan A. Galkin

UMASS Lowell

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Contents

IntroductionBackground: Radio Plasma ImagerData management scenario2D solutions: BinBrowser3D solutions: Viz-a-VizOther work

IVPR IVPR Team Team MeetinMeetingg

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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

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Background

IMAGE orbit

Magnetosphere

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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

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RPI Plasmagram: simulation

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RPI Plasmagram: actual data

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Targets of Opportunity

1. Magnetopause

3. Plasmapause,nightside

2. Plasmapause, dayside

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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

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-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

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RPI Echomap: actual data

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RPI Measurement is a Cube

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RPI Databin Contents

LTD(Time domain)

SSD(Spectral domain)

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RPI Databin Contents ( cont. )

SMD(Spectral peaks only)

TTD(Time domain, thermal noise)

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Data Management Scenario

L0

DSN

DHDS

L0.5

UDF L1CDF

To general publicand NSSDC

To Instrument Leads

BP

WWW

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