-
1دورية أكاديمية
المؤلفون: Warrington, E. M., Bourdillon, A., Benito, E., Bianchi, C., Monilie, J. P., Muriuki, M., Pietrella, M., Rannou, V., Rothkaehl, H., Saillant, S., Sari, O., Stocker, A. J., Tulunay, E., Tulunay, Y., Zaalov, N. Y.
المساهمون: Warrington, E. M., Department of Engineering, University of Leicester, UK, Bourdillon, A., IETR, Université de Rennes 1, France, Benito, E., Electromagnetism and Radar Department, Onera, Palaiseau, France, Bianchi, C., Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia, Monilie, J. P., Muriuki, M., Pietrella, M., Rannou, V., Rothkaehl, H., Space Research Centre PAS 00-716 Warsaw, Poland, Saillant, S., Sari, O., Aselsan A.S., Macunkoy, Ankara, Turkey, Stocker, A. J., Tulunay, E., ODTÜ/METU, Department of Electrical and Electronics Engineering, Ankara, Turkey, Tulunay, Y., ODT /METU, Department of Aerospace Engineering, Ankara, Turkey, Zaalov, N. Y.
مصطلحات موضوعية: Ionospheric propagation, mid-latitude trough, radiolocation, propagation modelling, backscatter sounding, 01. Atmosphere::01.02. Ionosphere::01.02.05. Wave propagation
العلاقة: Annals of Geophysics; 4/52 (2009); BATES, H.F. and R.D. HUNSUCKER (1974): Quiet and disturbed electron-density profiles in auroral zone ionosphere, Radio Science, 9 (4), 455-467. BILITZA, D. (ed.) (1990): International Reference Ionosphere 1990, NSSDC 90-22, (Greenbelt, Maryland, USA). BILITZA, D. (2001): International Reference Ionosphere 2000, Radio Science, 36 (2), 261-275. BRADLEY, P.A. and J.R. DUDENEY (1973): A simple model of the vertical distribution of electron concentration in the ionosphere, Journal of Atmospheric and Terrestrial Physics, 35, 2131-2146. BUCHAU, J., B.W. RENISCH, E.J. WEBER and J.G. MOORE (1983): Structure and dynamics of the winter polar cap F region, Radio Science, 18, 995-1010. CARLSON, H.C. JR., V.B. WICKWAR, E.J. WEBER, J. BUCHAU, J.G. MOORE and W. WHITING (1984): Plasma characteristics of polar cap F layer arcs, GeophysicalResearch Letters, 11, 895-898. CANNON, P.S., M.J. ANGLING and N.J. DAVIES (2000): DAMSON HF Channel Characterisation - A review, 21st Century Military Communications Conference Proceedings, 1 (2), 59-64. CCIR (1966): Atlas of ionospheric characteristics, Report 340-1, ITU, (Geneva, Switzerland). COLEMAN, C.J. (1998): A ray-tracing formulation and its application to some problems in over-the-horizon radar, Radio Science, 33 (4), 1187-1197. DYSON, P.L. and P.A. BENNETT (1988): A model of vertical distribution of the electron concentration in the ionosphere and its application to oblique propagation studies, Journal of Atmospheric and Terrestrial Physics, 50 (3), 251-262. GOLDBERG, D.E. (1989): Genetic algorithms in search, optimization and machine learning, edited by Addison- Wesley Publishing Company. HALCROW, B.W. and J.S. NISBET (1977): A model of the F2 peak electron densities in the main trough region of the ionosphere, Radio Science, 12, 815-820. HAYDON, G.W. and D.L. LUCAS (1968): Predicting ionosphere electron density profiles, Radio Science, 3 (13), 111-119. ITU (INTERNATIONAL TELECOMMUNICATIONS UNION) (1997): Standardized procedure for comparing predicted and observed HF sky-wave signal intensities and the presentation of such comparisons, ITU-R Recommendation P1148-1. JODALEN, V., T. BERGSVIK, P.S. CANNON and P.C. ARTHUR (2001): Performance of HF modems on high-latitude paths using multiple frequencies, Radio Science, 36 (6), 1687-1698. JONES, R.M. and J.J. STEPHENSON (1975): A Versatile Three-Dimensional Ray Tracing Computer Program for Radio Waves in the Ionosphere, Office of Telecommunications, OT 75-76, (U.S Department of Commerce, Washington, USA). KIRKPATRICK, S., C.D. GELATT, Jr. and M.P. VECCHI (1983): Optimisation by Simulated Annealing, Science, 220 (4598), 671-680. LANDEAU, T., F. GAUTHIER and N. RUELLE (1997): Further improvements to the inversion of elevation-scan backscatter sounding data, Journal of Atmospheric and Solar-Terrestrial Physics, 59 (1), 125-138. NATO (2000): STANAG 4538 Technical Standards for an Automatic Radio Control System (ARCS) for HF communication links, (NATO Military Agency for Standardisation). NGDC (2008): National Geophysical Data Centre, Boulder, Colorado USA, ftp://ftp.ngdc.noaa.gov/STP/SOLAR_ DATA/SUNSPOT_NUMBERS/2008 NORMAN, R.J., J.A. BENNETT, P.L. DYSON and J.A. NGUYEN (1994): HIRT: homing-in ray tracing program, research report, School of Physics., (La Trobe University, Bundoora, Victoria, Australia). NORMAN, R.J. and P.S. CANNON (1997): A two-dimensional analytic ray tracing technique accommodating horizontal gradients, Radio Science, 32 (2), 387-396. NORMAN, R.J. and P.S. CANNON (1999): An evaluation of a new two-dimensional analytic ionospheric ray-tracing technique: Segmented method for analytic ray tracing (SMART), Radio Science, 34 (2), 489-499. PIETRELLA, M., E.M. WARRINGTON, A.J. STOCKER and C. BIANCHI (2009): Time of flight measurements over a radio-link from Uppsala to Bruntingthorpe and their application to testing predictions methods that approximate the ray tracing technique, Advances in Space Research, doi:10.1016/j.asr.2008.09.038. ROGERS, N.C., E.M. WARRINGTON and T.B. JONES (1997): Large HF bearing errors for propagation paths tangential to the auroral oval, IEE Proceedings on Microwaves, Antennas and Propagation, 144 (2), 91-96. SARI, M.O. (2006): A New Approach For The Assessment of HF Channel Availability Under Ionospheric Disturbances, MS Thesis, Electrical and Electronics Eng., (Middle East Technical Univ., Ankara, Turkey). SIDDLE, D.R., A.J. STOCKER and E.M. WARRINGTON (2004a): The time-of-flight and direction of arrival of HF radio signals received over a path along the mid-latitude trough: observations, Radio Science, 39 (4), RS4008, doi:10.1029/2004RS003049. SIDDLE, D.R., A.J. STOCKER and E.M. WARRINGTON (2004b): The time-of-flight and direction of arrival of HF radio signals received over a path along the mid-latitude trough: theoretical considerations, Radio Science, 39 (4), RS4009, doi:10.1029/2004RS003052. STOCKER, A.J., E.M. WARRINGTON and T.B. JONES (2003): A comparison of observed and modelled deviations from the great circle direction for a 4490 km HF propagation path along the mid-latitude ionospheric trough, Radio Science, 38 (3), 1045, doi:10.1029/2002RS002781. STOCKER, A.J., N.Y. ZAALOV, E.M. WARRINGTON and D.R. SIDDLE (2009): Observations of HF propagation on a path aligned along the mid-latitude trough, Advances in Space Research, 44 (1), 64-71, doi:10.1016/j.asr.2009.03.07. STEWART, F.G (undated): ICEPAC (Ionospheric Communications Enhanced Profile Analysis and Circuit analysis program) Technical Manual, (available for download at http://www.greg-hand.com/manuals/icepac_tech_manualTest. pdf). TARANTOLA, A. (1987): Inverse Problem Theory, Methods for data fitting and model parameter estimation, edited by Elsevier Science. WARRINGTON, E.M. and A.J. STOCKER (2003): Measurements of the Doppler and multipath spread of HF signals received over a path oriented along the mid-latitude trough, Radio Science, 38 (5), 1080, doi:10.1029/2002RS002815. WEBER, E.J., J. BUCHAU, J.G. MOORE, J.R. SHARBER, J.D. LIVINGSTON, J.D. WINNINGHAM and B.W. REINISCH (1984): F layer ionization patches in the polar cap, Journal of Geophysical Research, 89, 1683-1694. ZAALOV, N.Y., E.M. WARRINGTON and A.J. STOCKER (2003): The simulation of off-great circle HF propagation effects due to the presence of patches and arcs of enhanced electron density within the polar cap ionosphere, Radio Science, 38 (3), 1052, doi:10.1029/2002RS002798. ZAALOV, N.Y., E.M. WARRINGTON and A.J. STOCKER (2005): A ray-tracing model to account for off-great circle HF propagation over northerly paths, Radio Science, 40 (4), RS4006, doi:10.1029/2004RS003183. ZOLESI, B., L.R. CANDER and G. DE FRANCESCHI (1993): Simplified ionospheric regional model for telecommunication application, Radio Science, 28 (4), 603-612. ZOLESI, B., L.R. CANDER and G. DE FRANCESCHI (1996): On the potential applicability of the simplified ionospheric regional model to different mid-latitude areas, Radio Science, 31 (3), 547-552.; http://hdl.handle.net/2122/5242Test
-
2دورية أكاديمية
المؤلفون: Kersley, L.
المصدر: Annals of Geophysics; V. 48 N. 3 (2005) ; Annals of Geophysics; Vol. 48 No. 3 (2005) ; 2037-416X ; 1593-5213
مصطلحات موضوعية: ionospheric tomography, total electron content, ionospheric propagation, ionospheric modeling, 01.02.05. Wave propagation
وصف الملف: application/pdf
العلاقة: https://www.annalsofgeophysics.eu/index.php/annals/article/view/3218/3263Test; https://www.annalsofgeophysics.eu/index.php/annals/article/view/3218Test
الإتاحة: https://doi.org/10.4401/ag-3218Test
https://www.annalsofgeophysics.eu/index.php/annals/article/view/3218Test -
3دورية أكاديمية
المؤلفون: Kersley, L.
المساهمون: Kersley, L., Radio and Space Physics Group, Department of Physics, University of Wales, Aberystwyth, U.K.
مصطلحات موضوعية: ionospheric tomography, total electron content, ionospheric propagation, ionospheric modeling, 01. Atmosphere::01.02. Ionosphere::01.02.05. Wave propagation
وصف الملف: 1728332 bytes; application/pdf
العلاقة: Annals of Geophysics; 3/48 (2005); http://hdl.handle.net/2122/921Test
الإتاحة: http://hdl.handle.net/2122/921Test
-
4دورية أكاديمية
المؤلفون: Bradley, P. A.
المصدر: Annals of Geophysics; V. 45 N. 1 (2002) ; Annals of Geophysics; Vol. 45 No. 1 (2002) ; 2037-416X ; 1593-5213
مصطلحات موضوعية: ionosphere, ionospheric propagation, 01.02.05. Wave propagation
وصف الملف: application/pdf
العلاقة: https://www.annalsofgeophysics.eu/index.php/annals/article/view/3493/3538Test; https://www.annalsofgeophysics.eu/index.php/annals/article/view/3493Test
الإتاحة: https://doi.org/10.4401/ag-3493Test
https://www.annalsofgeophysics.eu/index.php/annals/article/view/3493Test -
5دورية أكاديمية
المؤلفون: Bradley, P. A.
المساهمون: Bradley, P. A., Pandora, Farnham Common, Slough, Berks, U.K
مصطلحات موضوعية: ionosphere, ionospheric propagation, 01. Atmosphere::01.02. Ionosphere::01.02.05. Wave propagation
وصف الملف: 57224 bytes; application/pdf
العلاقة: Annals of Geophysics; 1/45 (2002); http://hdl.handle.net/2122/672Test
الإتاحة: http://hdl.handle.net/2122/672Test
-
6دورية أكاديمية
المؤلفون: Yampolski, Yuri M
المساهمون: UKRAINIAN ACADEMY OF SCIENCES KHARKOV INST OF RADIO ASTRONOMY
المصدر: DTIC
مصطلحات موضوعية: Radiofrequency Wave Propagation, IONOSPHERIC PROPAGATION, ANTARCTIC REGIONS, HIGH FREQUENCY, HIGH TEMPERATURE, TRANSMITTANCE, UKRAINE, WAVEGUIDES, MICTROSTRUCTURAL CHARACTERIZATION, PE61102F
وصف الملف: text/html
-
7دورية أكاديمية
المؤلفون: Makela, Jonathan
المساهمون: ILLINOIS UNIV AT URBANA-CHAMPAIGN
المصدر: DTIC
مصطلحات موضوعية: Atmospheric Physics, Information Science, Radiofrequency Wave Propagation, ALGORITHMS, IONOSPHERIC DISTURBANCES, NIGHT SKY, CLASSIFICATION, IMAGES, AUTOMATION, IONOSPHERIC PROPAGATION, SOLAR CYCLE, GRAVITY WAVES, LIGHTNING, SEASONAL VARIATIONS, DATA BASES, CLIMATOLOGY, COUPLING(INTERACTION), NEW MEXICO, DYNAMICS, IONOSPHERIC IRREGULARITIES, AUTOMATED CLASSIFICATION, TRANS-IONOSPHERIC RADIO WAVE PROPAGATION, SPATIAL PROPERTIES, DYNAMIC PROPERTIES, COLLOCATED RADIO MEASUREMENTS
وصف الملف: text/html
-
8دورية أكاديمية
المساهمون: NORTHWEST RESEARCH ASSOCIATES INC REDMOND WA
المصدر: DTIC
مصطلحات موضوعية: Atmospheric Physics, Test Facilities, Equipment and Methods, Active & Passive Radar Detection & Equipment, Radiofrequency Wave Propagation, Meteorology, RADIO WAVES, IONOSPHERIC SCINTILLATION, TOMOGRAPHY, PLASMAS(PHYSICS), INCOHERENT SCATTERING, POSITION(LOCATION), AIR FORCE, ENVIRONMENTS, AIR FORCE RESEARCH, MODELS, OBSERVATION, ALASKA, ELECTROMAGNETIC WAVE PROPAGATION, ELECTRONS, GLOBAL POSITIONING SYSTEM, CHAINS, IMAGES, AURORAE, RADIO TRANSMISSION, F REGION, SCINTILLATION, LATITUDE, IONOSPHERIC DISTURBANCES, IONOSPHERIC PROPAGATION
وصف الملف: text/html
-
9دورية أكاديمية
المؤلفون: Oughstun, Kurt E.
المساهمون: VERMONT UNIV BURLINGTON COLL OF ENGINEERING AND MATHEMATICS
المصدر: DTIC
مصطلحات موضوعية: Numerical Mathematics, Radiofrequency Wave Propagation, Electromagnetic Pulses, ELECTROMAGNETIC WAVE PROPAGATION, ELECTROMAGNETIC PULSES, OPTICAL COMMUNICATIONS, RADAR, ASYMPTOTIC SERIES, DISPERSIONS, IONOSPHERIC PROPAGATION, INTEGRATED OPTICS, UNDERWATER COMMUNICATIONS, STEALTH TECHNOLOGY, ATTENUATION, BURIED OBJECTS, LAND MINES, REMOTE DETECTION, ASYMPTOTICS, PE61103F, WUAFRL5094BS
وصف الملف: text/html
-
10دورية أكاديمية
المؤلفون: Wang, Dong, Lu, Huchuan, Li, Xuelong
مصطلحات موضوعية: Pca, 2dpca, Principal Components, Two Dimensional Principal Components, Natural Images, Computer Science, Science & Technology, Technology, LOCAL BINARY PATTERNS, TEXTURE CLASSIFICATION, FACE RECOGNITION, REPRESENTATION, FEATURES, STATISTICS, Artificial Intelligence, radio wave propagation, cumulants, propagation of radio waves, interplanetary scintillation, ionospheric scintillation, earth-ionosphere waveguide, hf radio propagation, hf propagation, high-frequency radio propagation, ionospheric electromagnetic wave propagation, ionospheric propagation, polar cap absorption, scintillation, ionospheric, microwave propagation
العلاقة: NEUROCOMPUTING; http://ir.opt.ac.cn/handle/181661/19878Test; http://www.sciencedirect.com/science/article/pii/S0925231211003092Test
الإتاحة: https://doi.org/10.1016/j.neucom.2011.03.047Test
http://ir.opt.ac.cn/handle/181661/19878Test
http://www.sciencedirect.com/science/article/pii/S0925231211003092Test