Results 11 to 20 of about 192,438 (227)

CHARACTERISTICS OF THE SHORT WAVE PROPAGATION FROM TOKYO TO SYOWA STATION, ANTARCTICA

Antarctic Record, 1968
Measurements of the field intensity of 6055 KHz (NSB, Nippon Short Wave Broadcasting), 9595 KHz (NSB) and 15300 KHz (NHK, Radio Japan) were made at Syowa Station in Antarctica, from April 1966 to January 1967.
Sadao HASEGAWA, Tetsuo TAKEUCHI, Takeshi ISOBE   +2 more
doaj   +1 more source

A Comprehensive Survey on Millimeter Wave Communications for Fifth-Generation Wireless Networks: Feasibility and Challenges

IEEE Access, 2020
Fifth-generation (5G) cellular networks will almost certainly operate in the high-bandwidth, underutilized millimeter-wave (mmWave) frequency spectrum, which offers the potentiality of high-capacity wireless transmission of multi-gigabit-per-second (Gbps)
Anthony Ngozichukwuka Uwaechia, Nor Muzlifah Mahyuddin   +1 more
doaj   +1 more source

Analysis on the Influence of the Height of Tower on Passive Interference in shortwave

E3S Web of Conferences, 2018
The passive interference of transmission lines to nearby radio stations may affect the effective reception and transmission of radio station signals. Therefore, the accurate calculation of the electromagnetic scattering of transmission lines under the ...
Lu Ying, Zhao Zhibin, Zhang Jian gong, Gan Zheyuan   +3 more
doaj   +1 more source

Analysis on the Influence of Transmission Lines span on Passive Interference in Shortwave

E3S Web of Conferences, 2018
The passive interference of transmission lines to nearby radio stations may affect the effective reception and transmission of radio station signals. Therefore, the accurate calculation of the electromagnetic scattering of transmission lines under the ...
Lu Ying, Zhao Zhibin, Zhang Jian gong, Gan Zheyuan   +3 more
doaj   +1 more source

Impact of Overlapped AoAs on the Achievable Uplink Rate of Hybrid Beamforming for Massive MIMO mm-Wave Systems for Industrial Environments

IEEE Access, 2019
In this paper, we develop novel precoder and combiner schemes for multi-user hybrid digital-to-analog (D-A) beamforming for uplink massive multiple-input multiple-output millimeter wave (mm-Wave) systems, where the number of radio frequency chains is ...
Osama Alluhaibi, Erik Kampert, Paul A. Jennings, Matthew D. Higgins   +3 more
doaj   +1 more source

Influence of heating experiments on parameters of Schumann resonances

E3S Web of Conferences, 2017
Recently the significant increase in intensity of researches in the field of the fissile impact on geophysical processes in various environments is noted.
Agranat Irina, Sivokon Vladimir
doaj   +1 more source

Ionospheric effects of the solar flares of September 23, 1998 and July 29, 1999 as deduced from global GPS network data [PDF]

, 2000
This paper presents data from first GPS measurements of global response of the ionosphere to solar flares of September 23, 1998 and July 29, 1999. The analysis used novel technology of a global detection of ionospheric effects from solar flares (GLOBDET)
A.T. Altyntsev, Afraimovich, Afraimovich, Afraimovich, Afraimovich, Afraimovich, Calais, Calais, Calais, Davies, Donnelly, Donnelly, Donnelly, E.A. Kosogorov, E.L. Afraimovich, Fitzgerald, Hofmann-Wellenhof, Kelley, Klobuchar, L.A. Leonovich, Livingston, Mannucci, Mendillo, Mendillo, N.S. Larina, Saito, Thome, Vanderveen   +27 more
core   +2 more sources

Astrometry and geodesy with radio interferometry: experiments, models, results

, 1997
Summarizes current status of radio interferometry at radio frequencies between Earth-based receivers, for astrometric and geodetic applications. Emphasizes theoretical models of VLBI observables that are required to extract results at the present ...
Aoki, S., Argus, D. F., Argus, D. F., Argus, D. F., Baader, H.-R., Bare, C., Bartel, N., Bassiri, S., Batty, M. J., Bolton, J. G., Bowring, B. R., Brosche, P., Brosche, P., Brosche, P., Brosche, P., Broten, N. W., Burke, B. F., Carr, T. D., Carter, W. E., Cartwright, D. E., Chao, B. F., Chao, B. F., Charlot, P., Charlot, P., Charlot, P., Chen, G., Christopher S. Jacobs, Clark, T. A., Clark, T. A., Cohen, M. H., Cohen, M. H., Davidson, J. M., Davis, J. L., DeMets, C., DeMets, C., Dreyer, J. L. E., Edge, D. O., Einstein, A., Einstein, A., Elgered, G., Fairhead, L., Fallon, F. W., Fang, M., Fey, A. L., Fich, M., Folkner, W. M., Freedman, A. P., Fu, L. L., Fukushima, T., Fukushima, T., Gardner, C. S., Gardner, C. S., Gaspar, P., Gilbert, F., Gipson, J. M., Gross, R. S., Gwinn, C. R., Gwinn, C. R., Haas, R., Hartmann, T., Hartmann, T., Hartmann, T., Hellings, R. W., Henstock, D. R., Herring, T. A., Herring, T. A., Herring, T. A., Herring, T. A., Hinteregger, H. F., Hjellming, R. M., Ho, C. M., Hosokawa, M., Hubble, E. P., Jacobs, C. S., Jansky, K. G., Jansky, K. G., John L. Fanselow, Johnston, K. J., Kellermann, K. I., Kerr, F. J., Kinoshita, H., Kinoshita, H., Kogut, A., Kovalevsky, J., Le Provost, C., Lebach, D. E., Lestrade, J.-F., Lestrade, J.-F., Lieske, J. H., Linfield, R. P., Ma, C., Ma, C., MacDoran, P. F., MacMillan, D. S., MacMillan, D. S., MacMillan, D. S., Marcaide, J. M., Marini, J. W., Mathews, P. M., Mathews, P. M., Mathews, P. M., May, J., Minster, J. B., Mitrovica, J. X., Moran, J. M., Morgan, P. J., Moyer, T. D., Napier, P. J., Naudet, C. J., Niell, A. E., Ojars J. Sovers, Ong, K. M., Pagiatakis, S. D., Patnaik, A., Peltier, W. R., Piner, B. G., Polatidis, A. G., Pyne, T., Rabbel, W., Ray, J. R., Ray, J. R., Ray, R. D., Reber, G., Reber, G., Reid, M. J., Rius, A., Robertson, D. S., Robertson, D. S., Robertson, D. S., Robertson, D. S., Robertson, D. S., Rogers, A. E. E., Rogers, A. E. E., Rosen, R. D., Scherneck, H. G., Schmidt, M., Seidelmann, P. K., Seiler, U., Shahid-Saless, B., Shapiro, I. I., Shapiro, I. I., Smith, E. K., Sonett, C. P., Souchay, J., Sovers, O. J., Sovers, O. J., Sovers, O. J., Standish, E. M., Taylor, G. B., Teitelbaum, L. P., Thakkar, D. D., Thayer, G. D., Treuhaft, R. N., Treuhaft, R. N., Tushingham, A. M., van Dam, T. M., van Dam, T. M., van Vleck, J. H., Vigue, Y., Wade, C. M., Wade, C. M., Wahr, J. M., Wahr, J. M., Walter, H. G., Walter, H. G., Ward, S. N., Watkins, M. M., Webb, F. H., Williams, J. G., Williams, J. G., Williams, J. G., Wilson, B. D., Yahil, A., Yoder, C. F., Zebker, H. A., Zhu, S. Y., Zhu, S. Y.   +176 more
core   +2 more sources

Insights and approaches for low-complexity 5G small-cell base-station design for indoor dense networks [PDF]

, 2015
This paper investigates low-complexity approaches to small-cell base-station (SBS) design, suitable for future 5G millimeter-wave (mmWave) indoor deployments.
Arshad, Kamran, Imran, Muhammad Ali, Muirhead, David   +2 more
core   +1 more source

Observation of Interplanetary Scintillation with Single-Station Mode at Urumqi

, 2010
The Sun affects the Earth's physical phenomena in multiple ways, in particular the material in interplanetary space comes from coronal expansion in the form of inhomogeneous plasma flow (solar wind), which is the primary source of the interplanetary ...
Bo Peng, Jian-Bin Li, Li-Jia Liu, Ma, Manoharan, P. K Manoharan, Purvis, Scott, Swarup, Tokumaru, Vitkevich, Wang, Xi-Zhen Zhang, Ye, Zhang, Zhi-Yong Liu   +15 more
core   +1 more source