Class information for:
Level 1: PISTON ERROR//SPARSE APERTURE//SPARSE OPTICAL SYNTHETIC APERTURE

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
21070 434 15.4 40%


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
10 4 OPTICS//PHYSICS, PARTICLES & FIELDS//PHYSICS, MULTIDISCIPLINARY 1131262
217 3       OPTICS//APPLIED OPTICS//OPTICAL ENGINEERING 50829
1405 2             SITE TESTING//ATMOSPHERIC EFFECTS//INSTRUMENTATION ADAPTIVE OPTICS 8044
21070 1                   PISTON ERROR//SPARSE APERTURE//SPARSE OPTICAL SYNTHETIC APERTURE 434

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 PISTON ERROR authKW 409346 2% 73% 8
2 SPARSE APERTURE authKW 383052 2% 78% 7
3 SPARSE OPTICAL SYNTHETIC APERTURE authKW 225141 1% 80% 4
4 MIRROR DEFORMATIONS authKW 211071 1% 100% 3
5 SPACE TELESCOPE COST MODEL authKW 211071 1% 100% 3
6 PARAMETRIC COST MODEL authKW 158302 1% 75% 3
7 SYNTHETIC APERTURE OPTICS authKW 158302 1% 75% 3
8 TELESCOPE MIRRORS authKW 158302 1% 75% 3
9 ASTRON OPT RUMENT GRP address 140714 0% 100% 2
10 CO PHASING DETECTION authKW 140714 0% 100% 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 Optics 15220 77% 0% 333
2 Spectroscopy 1790 18% 0% 78
3 Engineering, Aerospace 172 3% 0% 14
4 Astronomy & Astrophysics 97 8% 0% 33
5 Instruments & Instrumentation 71 5% 0% 21
6 Physics, Multidisciplinary 16 5% 0% 20
7 Multidisciplinary Sciences 6 1% 0% 4
8 Computer Science, Artificial Intelligence 6 2% 0% 7
9 Telecommunications 6 2% 0% 7
10 Automation & Control Systems 3 1% 0% 4

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 ASTRON OPT RUMENT GRP 140714 0% 100% 2
2 ASTRONAUT GRP DEV OPT IL 70357 0% 100% 1
3 COST ESTIMATING ANAL DIRECTORATE 70357 0% 100% 1
4 ELE OOPT SYST INC 70357 0% 100% 1
5 GOVT PROD 70357 0% 100% 1
6 INSU 2 70357 0% 100% 1
7 JIANGSU MODERN OPT TECHNOL 70357 0% 100% 1
8 NEW TELESCOPE TECHNOL GRP 70357 0% 100% 1
9 NEW TELESCOPE TECHNOL PROGRAM 70357 0% 100% 1
10 SENSORS ANAL C3 70357 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 PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS 67892 17% 1% 72
2 OPTICAL ENGINEERING 20841 15% 0% 64
3 APPLIED OPTICS 18632 22% 0% 96
4 JOURNAL OF ASTRONOMICAL TELESCOPES INSTRUMENTS AND SYSTEMS 17939 1% 5% 5
5 JOURNAL OF MODERN OPTICS 3592 4% 0% 18
6 COMPTES RENDUS HEBDOMADAIRES DES SEANCES DE L ACADEMIE DES SCIENCES SERIE B 2050 0% 1% 2
7 SHARP TECHNICAL JOURNAL 1757 0% 3% 1
8 JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION 1592 3% 0% 15
9 PURE AND APPLIED OPTICS 1477 0% 1% 2
10 JOURNAL OF OPTICS-NOUVELLE REVUE D OPTIQUE 967 1% 0% 3

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 PISTON ERROR 409346 2% 73% 8 Search PISTON+ERROR Search PISTON+ERROR
2 SPARSE APERTURE 383052 2% 78% 7 Search SPARSE+APERTURE Search SPARSE+APERTURE
3 SPARSE OPTICAL SYNTHETIC APERTURE 225141 1% 80% 4 Search SPARSE+OPTICAL+SYNTHETIC+APERTURE Search SPARSE+OPTICAL+SYNTHETIC+APERTURE
4 MIRROR DEFORMATIONS 211071 1% 100% 3 Search MIRROR+DEFORMATIONS Search MIRROR+DEFORMATIONS
5 SPACE TELESCOPE COST MODEL 211071 1% 100% 3 Search SPACE+TELESCOPE+COST+MODEL Search SPACE+TELESCOPE+COST+MODEL
6 PARAMETRIC COST MODEL 158302 1% 75% 3 Search PARAMETRIC+COST+MODEL Search PARAMETRIC+COST+MODEL
7 SYNTHETIC APERTURE OPTICS 158302 1% 75% 3 Search SYNTHETIC+APERTURE+OPTICS Search SYNTHETIC+APERTURE+OPTICS
8 TELESCOPE MIRRORS 158302 1% 75% 3 Search TELESCOPE+MIRRORS Search TELESCOPE+MIRRORS
9 CO PHASING DETECTION 140714 0% 100% 2 Search CO+PHASING+DETECTION Search CO+PHASING+DETECTION
10 COMPASS GRADIENT EDGE MASKS 140714 0% 100% 2 Search COMPASS+GRADIENT+EDGE+MASKS Search COMPASS+GRADIENT+EDGE+MASKS

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 WANG, SQ , RAO, CH , JIANG, WH , (2008) DIFFRACTION-LIMITED PERFORMANCE AND ABERRATION TOLERANCE OF A SPARSE OPTICAL SYNTHETIC APERTURE IMAGING SYSTEM WITH FOUR SUB-APERTURES.JOURNAL OF MODERN OPTICS. VOL. 55. ISSUE 11. P. 1771 -1785 12 92% 3
2 YAN, ZJ , CHEN, XY , ZHENG, LX , DING, YY , ZHU, NH , (2016) ZERO CO-PHASING REFERENCE CALIBRATION METHOD BASED ON DISPERSED INTERFEROGRAM FOR SEGMENTED MIRROR TELESCOPE.ACTA PHYSICA SINICA. VOL. 65. ISSUE 19. P. - 10 83% 0
3 YAN, ZJ , CHEN, XY , YANG, PQ , ZHOU, D , ZHENG, LX , ZHU, NH , (2015) CO-PHASING DETECTING METHOD BASED ON GRATING DISPERSED FRINGE FOR FIZEAU OPTICAL INTERFEROMETRIC TELESCOPE.ACTA PHYSICA SINICA. VOL. 64. ISSUE 14. P. - 8 100% 1
4 MACMARTIN, DG , THOMPSON, PM , COLAVITA, MM , SIROTA, MJ , (2014) DYNAMIC ANALYSIS OF THE ACTIVELY-CONTROLLED SEGMENTED MIRROR OF THE THIRTY METER TELESCOPE.IEEE TRANSACTIONS ON CONTROL SYSTEMS TECHNOLOGY. VOL. 22. ISSUE 1. P. 58 -68 9 90% 2
5 HUGOT, E , FERRARI, M , RICCARDI, A , XOMPERO, M , LEMAITRE, GR , ARSENAULT, R , HUBIN, N , (2011) STRESS POLISHING OF THIN SHELLS FOR ADAPTIVE SECONDARY MIRRORS APPLICATION TO THE VERY LARGE TELESCOPE DEFORMABLE SECONDARY.ASTRONOMY & ASTROPHYSICS. VOL. 527. ISSUE . P. - 10 83% 1
6 SABATKE, EE , BURGE, JH , HINZ, P , (2006) OPTICAL DESIGN OF INTERFEROMETRIC TELESCOPES WITH WIDE FIELDS OF VIEW.APPLIED OPTICS. VOL. 45. ISSUE 31. P. 8026 -8035 9 100% 14
7 LIU, L , JIANG, YS , WANG, HY , HE, YT , (2011) NOVEL ARRAY CONFIGURATION AND ITS OPTIMIZATION FOR SPARSE APERTURE IMAGING SYSTEMS.OPTICAL ENGINEERING. VOL. 50. ISSUE 5. P. - 9 90% 0
8 SCHIPANI, P , NOETHE, L , MAGRIN, D , KUIJKEN, K , ARCIDIACONO, C , ARGOMEDO, J , CAPACCIOLI, M , DALL'ORA, M , D'ORSI, S , FARINATO, J , ET AL (2016) ACTIVE OPTICS SYSTEM OF THE VLT SURVEY TELESCOPE.APPLIED OPTICS. VOL. 55. ISSUE 7. P. 1573 -1583 10 67% 1
9 HUGOT, E , LEMAITRE, GR , FERRARI, M , (2008) ACTIVE OPTICS: SINGLE ACTUATOR PRINCIPLE AND ANGULAR THICKNESS DISTRIBUTION FOR ASTIGMATISM COMPENSATION BY ELASTICITY.APPLIED OPTICS. VOL. 47. ISSUE 10. P. 1401 -1409 9 90% 3
10 HARVEY, JE , FTACLAS, C , (1995) FIELD-OF-VIEW LIMITATIONS OF PHASED TELESCOPE ARRAYS.APPLIED OPTICS. VOL. 34. ISSUE 25. P. 5787-5798 12 100% 19

Classes with closest relation at Level 1


Rank Class id link
1 13123 INSTRUMENTATION HIGH ANGULAR RESOLUTION//CORONAGRAPH//INSTRUMENTATION ADAPTIVE OPTICS
2 19442 SKEW RAY TRACING//OFF AXIAL OPTICAL SYSTEM//ABERRATION FUNCTIONS
3 5300 ADAPTIVE OPTICS//AD T OPT//SHACK HARTMANN WAVEFRONT SENSOR
4 20049 INSTRUMENTATION SPECTROGRAPHS//ASTRON RUMENT GRP//FOUR MIRROR
5 7544 TECHNIQUES INTERFEROMETRIC//INSTRUMENTATION INTERFEROMETERS//STARS INDIVIDUAL BETELGEUSE
6 28801 LIQUID MIRRORS//CHEM POB 653//METAL LIQUID LIKE FILMS
7 34397 REFLECTIVE TOMOGRAPHY//SYNTHETIC APERTURE IMAGING LADAR//SPACE LASER COMMUN DETECT TECHNOL
8 12108 SITE TESTING//ATMOSPHERIC EFFECTS//SEEING
9 34431 RISLEY PRISM//INFRARED COUNTERMEASURES//REFRACTIVE INDEX MATCHING LIQUID
10 14505 ABSOLUTE TEST//SUBAPERTURE STITCHING//OPTICAL TESTING

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