Class information for:
Level 1: GBAS//RELATIVISTIC POSITIONING SYSTEMS//GDOP

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
28002 216 19.9 31%


Bar chart of Publication_year

Last years might be incomplete

Hierarchy of classes
The table includes all classes above and classes immediately below the current class.


Cluster id Level Cluster label #P
4 4 ENVIRONMENTAL SCIENCES//GEOSCIENCES, MULTIDISCIPLINARY//METEOROLOGY & ATMOSPHERIC SCIENCES 1766162
488 3       JOURNAL OF GEODESY//GRACE//GPS SOLUTIONS 23184
2576 2             GPS SOLUTIONS//JOURNAL OF GEODESY//PRECISE POINT POSITIONING 3678
28002 1                   GBAS//RELATIVISTIC POSITIONING SYSTEMS//GDOP 216

Terms with highest relevance score


rank Term termType Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 GBAS authKW 1069085 5% 69% 11
2 RELATIVISTIC POSITIONING SYSTEMS authKW 848205 3% 100% 6
3 GDOP authKW 532841 3% 54% 7
4 GAST D authKW 424103 1% 100% 3
5 COMPOSITE PROTECTION LEVEL authKW 282735 1% 100% 2
6 CONSPIRING BIAS authKW 282735 1% 100% 2
7 RADIAL PROTECTION LEVEL authKW 282735 1% 100% 2
8 SATELLITE NAVIGATION authKW 248843 6% 14% 13
9 LAAS authKW 226183 2% 40% 4
10 GROUND BASED AUGMENTATION SYSTEM GBAS authKW 188489 1% 67% 2

Web of Science journal categories


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 Engineering, Aerospace 9551 32% 0% 69
2 Remote Sensing 3771 18% 0% 39
3 Telecommunications 2586 29% 0% 63
4 Engineering, Marine 2456 6% 0% 13
5 Engineering, Electrical & Electronic 618 32% 0% 70
6 Astronomy & Astrophysics 306 17% 0% 36
7 Oceanography 135 6% 0% 13
8 Geochemistry & Geophysics 96 6% 0% 14
9 Physics, Particles & Fields 85 7% 0% 16
10 Meteorology & Atmospheric Sciences 78 6% 0% 13

Address terms


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 PILOT ASSISTANCE 188489 1% 67% 2
2 RADAR SIGNAL ANAL 188489 1% 67% 2
3 3G PLICAT 141368 0% 100% 1
4 AIR NAV RADIO AIDS 141368 0% 100% 1
5 AU ENGN AUTONOMOUS 141368 0% 100% 1
6 AUTOMAT SAFETY ROBOT 141368 0% 100% 1
7 COMMUN NAV SURVEILLANCE 141368 0% 100% 1
8 COMMUN SATELLITE NAV 141368 0% 100% 1
9 COMMUN SPACE COMM SEC 2 141368 0% 100% 1
10 CONNECT DEV TEAM 141368 0% 100% 1

Journals


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 NAVIGATION-JOURNAL OF THE INSTITUTE OF NAVIGATION 108010 4% 8% 9
2 GPS SOLUTIONS 96986 9% 4% 19
3 IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC SYSTEMS 29688 14% 1% 30
4 JOURNAL OF NAVIGATION 23080 6% 1% 13
5 CHINESE JOURNAL OF AERONAUTICS 4073 3% 0% 6
6 SPACE COMMUNICATIONS 3791 1% 1% 2
7 CHINESE JOURNAL OF ELECTRONICS 2744 3% 0% 7
8 TELECOMMUNICATION JOURNAL 1989 0% 1% 1
9 RADIO SCIENCE 1959 4% 0% 8
10 PROCEEDINGS OF THE IEEE 1185 3% 0% 6

Author Key Words


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class		 LCSH search Wikipedia search
1 GBAS 1069085 5% 69% 11 Search GBAS Search GBAS
2 RELATIVISTIC POSITIONING SYSTEMS 848205 3% 100% 6 Search RELATIVISTIC+POSITIONING+SYSTEMS Search RELATIVISTIC+POSITIONING+SYSTEMS
3 GDOP 532841 3% 54% 7 Search GDOP Search GDOP
4 GAST D 424103 1% 100% 3 Search GAST+D Search GAST+D
5 COMPOSITE PROTECTION LEVEL 282735 1% 100% 2 Search COMPOSITE+PROTECTION+LEVEL Search COMPOSITE+PROTECTION+LEVEL
6 CONSPIRING BIAS 282735 1% 100% 2 Search CONSPIRING+BIAS Search CONSPIRING+BIAS
7 RADIAL PROTECTION LEVEL 282735 1% 100% 2 Search RADIAL+PROTECTION+LEVEL Search RADIAL+PROTECTION+LEVEL
8 SATELLITE NAVIGATION 248843 6% 14% 13 Search SATELLITE+NAVIGATION Search SATELLITE+NAVIGATION
9 LAAS 226183 2% 40% 4 Search LAAS Search LAAS
10 GROUND BASED AUGMENTATION SYSTEM GBAS 188489 1% 67% 2 Search GROUND+BASED+AUGMENTATION+SYSTEM+GBAS Search GROUND+BASED+AUGMENTATION+SYSTEM+GBAS

Core articles
The table includes core articles in the class. The following variables is taken into account for the relevance score of an article in a cluster c:
(1) Number of references referring to publications in the class.
(2) Share of total number of active references referring to publications in the class.
(3) Age of the article. New articles get higher score than old articles.
(4) Citation rate, normalized to year.


Rank Reference # ref.
in cl.		 Shr. of ref. in
cl.		 Citations
1 COLL, B , FERRANDO, JJ , MORALES-LLADOSA, JA , (2012) POSITIONING SYSTEMS IN MINKOWSKI SPACE-TIME: BIFURCATION PROBLEM AND OBSERVATIONAL DATA.PHYSICAL REVIEW D. VOL. 86. ISSUE 8. P. - 19 100% 6
2 RIFE, JH , (2013) THE EFFECT OF UNCERTAIN COVARIANCE ON A CHI-SQUARE INTEGRITY MONITOR.NAVIGATION-JOURNAL OF THE INSTITUTE OF NAVIGATION. VOL. 60. ISSUE 4. P. 291 -303 12 92% 2
3 PUCHADES, N , SAEZ, D , (2012) RELATIVISTIC POSITIONING: FOUR-DIMENSIONAL NUMERICAL APPROACH IN MINKOWSKI SPACE-TIME.ASTROPHYSICS AND SPACE SCIENCE. VOL. 341. ISSUE 2. P. 631-643 13 87% 1
4 COLL, B , FERRANDO, JJ , MORALES-LLADOSA, JA , (2010) POSITIONING IN A FLAT TWO-DIMENSIONAL SPACE-TIME: THE DELAY MASTER EQUATION.PHYSICAL REVIEW D. VOL. 82. ISSUE 8. P. - 14 82% 1
5 SONG, JC , XUE, GX , KANG, YN , (2016) A NOVEL METHOD FOR OPTIMUM GLOBAL POSITIONING SYSTEM SATELLITE SELECTION BASED ON A MODIFIED GENETIC ALGORITHM.PLOS ONE. VOL. 11. ISSUE 3. P. - 9 75% 2
6 COLL, B , FERRANDO, JJ , MORALES-LLADOSA, JA , (2009) FOUR CAUSAL CLASSES OF NEWTONIAN FRAMES.FOUNDATIONS OF PHYSICS. VOL. 39. ISSUE 11. P. 1280 -1295 10 91% 1
7 XUE, R , WANG, ZL , (2013) A NOVEL LAAS PSEUDO-RANGE ERROR OVER-BOUND METHOD BASED ON IMPROVED PSEUDO-RANGE ERROR DISTRIBUTION MODEL.CHINESE JOURNAL OF AERONAUTICS. VOL. 26. ISSUE 3. P. 638-645 8 100% 4
8 PUCHADES, N , SAEZ, D , (2014) RELATIVISTIC POSITIONING: ERRORS DUE TO UNCERTAINTIES IN THE SATELLITE WORLD LINES.ASTROPHYSICS AND SPACE SCIENCE. VOL. 352. ISSUE 1. P. 307-320 10 77% 0
9 DELVA, P , KOSTIC, U , CADEZ, A , (2011) NUMERICAL MODELING OF A GLOBAL NAVIGATION SATELLITE SYSTEM IN A GENERAL RELATIVISTIC FRAMEWORK.ADVANCES IN SPACE RESEARCH. VOL. 47. ISSUE 2. P. 370 -379 11 69% 8
10 TARTAGLIA, A , RUGGIERO, ML , CAPOLONGO, E , (2011) A NULL FRAME FOR SPACETIME POSITIONING BY MEANS OF PULSATING SOURCES.ADVANCES IN SPACE RESEARCH. VOL. 47. ISSUE 4. P. 645-653 9 82% 5

Classes with closest relation at Level 1


Rank Class id link
1 4840 GPS SOLUTIONS//PRECISE POINT POSITIONING//AMBIGUITY RESOLUTION
2 35494 2 D RADARS//GEOMETRIC HEIGHT//2 D SEARCH RADAR
3 25560 MAP MATCHING//MAGNETOQUASISTATICS//HEIGHT AIDING
4 36497 VIDEO SYNCHRONIZATION//VIDEO ALIGNMENT//SPATIOTEMPORAL ALIGNMENT
5 13950 UNAMBIGUOUS TRACKING//CODE TRACKING LOOP//CODE TRACKING
6 528 INDOOR LOCALIZATION//TIME OF ARRIVAL TOA//RECEIVED SIGNAL STRENGTH
7 14513 TOTAL LEAST SQUARES//STRUCTURED TOTAL LEAST SQUARES//GEODETIC SURVEYS
8 32358 GEODETIC COORDINATES//ELLIPSOIDAL NORMAL//VECTOR METHODS
9 24361 X RAY PULSAR//X RAY PULSAR BASED NAVIGATION//PULSAR NAVIGATION
10 33038 HUMAN INFORMATION SENSOR//PYROELECTRIC ARRAY DETECTOR//SURFACE DIFFERENTIATION

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