zero-baseline analysis of galileo data from multi-gnss experiment
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Zero-Baseline Analysis of Galileo Data from Multi-GNSS ExperimentTRANSCRIPT
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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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3ESPACE Master$s %ollo&uiu', "eorgia (atsigianni, 2015
Motivation
#he "oal Perio3ical Patterns in ero-/aseline #est M" +tations )* "alileo +atellites peri'ents Hypotheses 4 planations
+atellite Positioning %on3ucting Differences inear co'binations ero-/aselines 6for' of DD7
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4ESPACE Master$s %ollo&uiu', "eorgia (atsigianni, 2015
1.1 "O# Galileo Satellites
Satellite Galileo "O# P$% &aunched Cloc's Status
P(M )GS*T+1+1, 11 21 )ct. 2011 PHM )perational
(M )GS*T+1+, 12 21 )ct. 2011 PHM )perational
(M- )GS*T+1+-, 18 12 )ct. 2012 PHM )perational
(M )GS*T+1+, 20 12 )ct. 2012 9!:+ Unavailable
Or/it Spacecra0t
"nclination 5o Di'ensions 2.;1.11.2'
Or/it %ircular +olar !rray +pan 1
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5ESPACE Master$s %ollo&uiu', "eorgia (atsigianni, 2015
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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6ESPACE Master$s %ollo&uiu', "eorgia (atsigianni, 2015
1. MGE3 %et2or'
6"+, 20107
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7ESPACE Master$s %ollo&uiu', "eorgia (atsigianni, 2015
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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8ESPACE Master$s %ollo&uiu', "eorgia (atsigianni, 2015
1.- 4ero 5 6aseline Test
+ingle Difference
li'ination of satellite cloc> error @oise increase3 6f. 7
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9ESPACE Master$s %ollo&uiu', "eorgia (atsigianni, 2015
1.- 4ero 5 6aseline Test
Double Difference
li'ination of satellite cloc> errors, receiver
cloc> errors @oise increase3 6f. 27
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10ESPACE Master$s %ollo&uiu', "eorgia (atsigianni, 2015
1.- 4ero 5 6aseline Test
ero /aseline Difference
li'ination of satellite cloc> errors, receiver
cloc> errors, geo'etrical 3istance,
tropospheric 3elays, ionospheric 3elays,
'ultipath, biases. @oise increase3 6f. 27
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11ESPACE Master$s %ollo&uiu', "eorgia (atsigianni, 2015
.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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12ESPACE Master$s %ollo&uiu', "eorgia (atsigianni, 2015
.1 E7peri8ent Settings
Using Doppler +hift Measure'ents
%orrecte3 %o3e an3 Phase Measure'ents
Chere , 3oppler shift
, satellite receiver e'itte3 fre&uencies ra3ial velocity as seen fro' the receiver avelength e'itte3 fro' receiver
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13ESPACE Master$s %ollo&uiu', "eorgia (atsigianni, 2015
.1 E7peri8ent Settings
CO%
GOP
9T4
S%
%6
S"%
6"+, 20107
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14ESPACE Master$s %ollo&uiu', "eorgia (atsigianni, 2015
.1 E7peri8ent Settings
+tation Pair %loc>s 9eceiver 1 fre&. 5 fre&. )ther fre&. Doppler
")Pternal %esiu'
%! "91200G"@++ %1, 1 %5, 5 %;, ;, %=, = D1
")P; E!*!D #9I" +ynchroniFation ith /9@+ softare
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15ESPACE Master$s %ollo&uiu', "eorgia (atsigianni, 2015
. 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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16ESPACE Master$s %ollo&uiu', "eorgia (atsigianni, 2015
. E7peri8ent 1
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17ESPACE Master$s %ollo&uiu', "eorgia (atsigianni, 2015
. 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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18ESPACE Master$s %ollo&uiu', "eorgia (atsigianni, 2015
.- E7peri8ent
Station Pair ;O E7peri8ent =
33
%onclusion
Perio3ic pheno'ena are the sa'e
+a'e perio3 for satellites 11412 for 1 an3 5a
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34ESPACE Master$s %ollo&uiu', "eorgia (atsigianni, 2015
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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35ESPACE Master$s %ollo&uiu', "eorgia (atsigianni, 2015
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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36ESPACE Master$s %ollo&uiu', "eorgia (atsigianni, 2015
$e0erences
%onstellation nfor'ation, uropean "@++ +ervice %entre 6"+%7, 2015
.gsc-europa.eu4syste'-status4%onstellation-nfor'ation. N!ccesse3 2015O
E. Hahn, "alileo )* - +! "alileo Proect, Dubai, 201ing @etor>, "+, 2010.
http44igscb.pl.nasa.gov4netor>4netin3e.ht'l. N!ccesse3 2015O.
PHK+%P+-nterference beats an3 #artini tones, U@+C-+chool of Physics
+y3ney, !ustralia, http44.ani'ations.physics.uns.e3u.au44beats.ht'.
N!ccesse3 2015O.
* ' l d t
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37ESPACE Master$s %ollo&uiu', "eorgia (atsigianni, 2015
SPEC"*& TI*%KS TO M'
*3 ra3ial velocity
*s L
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E7tra Slides