Zero-Baseline Analysis of Galileo Data from Multi-GNSS Experiment

7/17/2019 Zero-Baseline Analysis of Galileo Data from Multi-GNSS Experiment

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Zero-Baseline Analysis of Galileo

Data from Multi-GNSS Experiment

Munich, May 2015

Masters Course in Earth Oriented Space Science and TechnologySupervisor:

IAPG

ESPACE

Univ.-Prof. Dr.phil.nat. Urs Hugentobler

!P"-#UM

Georgia Katsigianni

Master$s %ollo&uiu'


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2ESPACE Master$s %ollo&uiu', "eorgia (atsigianni, 2015

Presentation Contents

Motivation

1. Theoretical Part

. Practical Part

Conclusions ! Suggestions

)* "alileo +atellites

M" +tations ero-/aseline test

peri'ent +ettings

peri'ents


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Motivation

#he "oal Perio3ical Patterns in ero-/aseline #est M" +tations )* "alileo +atellites peri'ents Hypotheses 4 planations

+atellite Positioning %on3ucting Differences inear co'binations ero-/aselines 6for' of DD7


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1.1 "O# Galileo Satellites

Satellite Galileo "O# P$% &aunched Cloc's Status

P(M )GS*T+1+1, 11 21 )ct. 2011 PHM )perational

(M )GS*T+1+, 12 21 )ct. 2011 PHM )perational

(M- )GS*T+1+-, 18 12 )ct. 2012 PHM )perational

(M )GS*T+1+, 20 12 )ct. 2012 9!:+ Unavailable

Or/it Spacecra0t

"nclination 5o Di'ensions 2.;1.11.2'

Or/it %ircular +olar !rray +pan 1


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1. MGE3 %et2or'

#he"GS 6nternational "@++ +ervice7 foun3e3 in 188B has as goals

High-&uality "@++ 3ata 4 pro3ucts 4 services Corl3i3e )pen access

%onsists of

? 220 agencies A institutions


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1. MGE3 %et2or'

6"+, 20107


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1.- 4ero 5 6aseline Test

#he "@++ 'easure'ent 'o3el

Chere geo'etrical 3istance , receiver 4 satellite cloc> offsets , tropospheric 4 ionospheric 3elay , 'ultipath errors , internal 3elays , noise phase a'biguity


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+ingle Difference

li'ination of satellite cloc> error @oise increase3 6f. 7


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Double Difference

li'ination of satellite cloc> errors, receiver

cloc> errors @oise increase3 6f. 27


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ero /aseline Difference

li'ination of satellite cloc> errors, receiver

cloc> errors, geo'etrical 3istance,

tropospheric 3elays, ionospheric 3elays,

'ultipath, biases. @oise increase3 6f. 27


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.1 E7peri8ent Settings

%loc> +ynchroniFation

:ro' #aylor pansion

Chere

range 3ifference at t/ , range 'easure'ents at t/ range 3ifference 6to epochs7

range at epoch tnG1 respective range at epoch tn range velocity ti'e 3ifference


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Using Doppler +hift Measure'ents

%orrecte3 %o3e an3 Phase Measure'ents

Chere , 3oppler shift

, satellite receiver e'itte3 fre&uencies ra3ial velocity as seen fro' the receiver avelength e'itte3 fro' receiver


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CO%

GOP

9T4

S%

%6

S"%

6"+, 20107


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+tation Pair %loc>s 9eceiver 1 fre&. 5 fre&. )ther fre&. Doppler

")Pternal %esiu'

%! "91200G"@++ %1, 1 %5, 5 %;, ;, %=, = D1

")P; E!*!D #9I" +ynchroniFation ith /9@+ softare


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. E7peri8ent 1

peri'ent "oal

"eneral vie of results %hec> pseu3oranges an3 phase Main tren3s 4 cases #i'e 1 'onth 6Ean. 201B7 !ll stations

+tation Pair 1 fre&. 5 fre&. +atellites

")P %1, 1 %5, 511412

")P; %1, 1 %5, 5

%)@ %1, 1 %5, 511412

%)@ %1%, 1% %5, 5

U+@B %1%, 1% %5, 511412

U+@5 %1%, 1% %5, 5

U@/+ %1%, 1% %5, 511412

U@/D %1, 1 %5, 5

C#2 %1%, 1% %5, 512418

C#< %1, 1 %5, 5

+@0 %1, 1 %5, 5 11412+@1 %1, 1 %5, 5


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. E7peri8ent 1


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. E7peri8ent 1

+tation Pair 1 fre&. 5 fre&. +atellites

")P %1, 1 %5, 511412

")P; %1, 1 %5, 5

%)@ %1, 1 %5, 511412

%)@ %1%, 1% %5, 5

U+@B %1%, 1% %5, 511412

U+@5 %1%, 1% %5, 5

U@/+ %1%, 1% %5, 511412

U@/D %1, 1 %5, 5

C#2 %1%, 1% %5, 512418

C#< %1, 1 %5, 5

+@0 %1, 1 %5, 5 11412+@1 %1, 1 %5, 5

peri'ent "oal

"eneral vie of results %hec> pseu3oranges an3 phase Main tren3s 4 cases #i'e 1 'onth 6Ean. 201B7 !ll stations

%onclusion

+a'e oscillations 4 behavior 3uring

this one 'onth perio3

Perio3ical Pattern 6


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.- E7peri8ent

Station Pair ;O E7peri8ent =

33

%onclusion

Perio3ic pheno'ena are the sa'e

+a'e perio3 for satellites 11412 for 1 an3 5a


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Conclusions F Suggestions

%onclusions

"alileo can be teste3 through )* 3ata available fro' M".

ero baseline test #his 3ifference has the i3entity that it is a geo'etry-free

an3 ionosphere-free co'bination. !ll error sources are eli'inate3 ecept

fro' the noise an3 the integer 'ultiple of the carrier avelength.

#he behavior of each station is stea3y over ti'e, a pattern 6beat signal7 is

observe3 for 11412 satellite co'bination.

)scillations 11


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Conclusions F Suggestions

+uggestions

ero-baseline test ith several receivers 6of the sa'e type 'o3el or3ifferent7 on or3er to ea'ine an3 co'pare the results ith the M"

netor> 'easure'ent 3ata..

Perfor'ing 3ifferences ith M" stations that are connecte3 to the sa'e

type 'o3el 4 6")P an3 %)@7 stations

!nalysis of "@++ 3ata fro' :)% satellites, here4if possible

:ourier #ransfor'ations for a longer perio3 6e.g. 1-2 years7 an3 fro' 'any

stations

$ 0


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$e0erences

%onstellation nfor'ation, uropean "@++ +ervice %entre 6"+%7, 2015

.gsc-europa.eu4syste'-status4%onstellation-nfor'ation. N!ccesse3 2015O

E. Hahn, "alileo )* - +! "alileo Proect, Dubai, 201ing @etor>, "+, 2010.

http44igscb.pl.nasa.gov4netor>4netin3e.ht'l. N!ccesse3 2015O.

PHK+%P+-nterference beats an3 #artini tones, U@+C-+chool of Physics

+y3ney, !ustralia, http44.ani'ations.physics.uns.e3u.au44beats.ht'.

N!ccesse3 2015O.

* ' l d t


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SPEC"*& TI*%KS TO M'

*3 ra3ial velocity

*s L


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Zero-Baseline Analysis of Galileo Data from Multi-GNSS Experiment