Results 11 to 20 of about 205,865 (354)

Comprehensive Design and Propagation Study of a Compact Dual Band Antenna for Healthcare Applications [PDF]

Journal of Sensor and Actuator Networks, 2015
In this paper, a dual band planar inverted F antenna (PIFA) has been investigated for cooperative on- and off-body communications. Free space and on-body performance parameters like return loss, bandwidth, radiation pattern and efficiency of this antenna
Mohammad Monirujjaman Khan, Qammer H. Abbasi, Ratil Hasnat Ashique   +2 more
doaj   +4 more sources

Practical challenges in data‐driven interpolation: Dealing with noise, enforcing stability, and computing realizations

International Journal of Adaptive Control and Signal Processing, EarlyView., 2023
Summary In this contribution, we propose a detailed study of interpolation‐based data‐driven methods that are of relevance in the model reduction and also in the systems and control communities. The data are given by samples of the transfer function of the underlying (unknown) model, that is, we analyze frequency‐response data.
Quirin Aumann, Ion Victor Gosea
wiley   +1 more source

Data‐driven performance metrics for neural network learning

International Journal of Adaptive Control and Signal Processing, EarlyView., 2023
Summary Effectiveness of data‐driven neural learning in terms of both local mimima trapping and convergence rate is addressed. Such issues are investigated in a case study involving the training of one‐hidden‐layer feedforward neural networks with the extended Kalman filter, which reduces the search for the optimal network parameters to a state ...
Angelo Alessandri, Mauro Gaggero, Marcello Sanguineti   +2 more
wiley   +1 more source

Frequency selective reconfigurable microstrip antenna for cognitive radio applications

Advanced Electromagnetics, 2022
For the efficient utilization of electromagnetic radio spectrum cognitive radio communication system is employed, which deals with the spectrum scarcity. An efficient antenna is essential for the appropriate selection of the available frequencies.
D. S. Aldar
doaj   +1 more source

ETSI-Standard Reconfigurable Mobile Device With an Opportunistic Multi-Antenna System Based on Radio and Non-Radio Contexts

IEEE Access, 2020
In state-of-the-art mobile devices (MDs), non-radio contexts (i.e., non-real-time data) provided by various sensors have been excluded in determining the modem configuration because of the problems in applying them in real-time modem operations.
Heungseop Ahn, Daejin Kim, Seungwon Choi, Markus Mueck, Vladimir Ivanov   +4 more
doaj   +1 more source

A novel reverse design method of tag antenna based on image analysis

Journal of Algorithms & Computational Technology, 2020
Since the working efficiency of the entire radio frequency identification system depends on the performance of the radio frequency identification tag antenna, the research and design of the tag antenna have received attention, especially for radio ...
Zhenlu Liu, Zhimin Zhao, Xiaolei Yu, Mengjie Liu, Rendong Ji   +4 more
doaj   +1 more source

Calibration of the Logarithmic-Periodic Dipole Antenna (LPDA) Radio Stations at the Pierre Auger Observatory using an Octocopter [PDF]

, 2017
An in-situ calibration of a logarithmic periodic dipole antenna with a frequency coverage of 30 MHz to 80 MHz is performed. Such antennas are part of a radio station system used for detection of cosmic ray induced air showers at the Engineering Radio ...
Aab, A., Abreu, P., Aglietta, M., Albuquerque, I. F. M., Allekotte, I., Almela, A., Alvarez-Muñiz, J., Anastasi, G. A., Anchordoqui, L., Andrada, B., Andringa, S., Anjos, R. C. dos, Aramo, C., Arqueros, F., Arsene, N., Asorey, H., Assis, P., Aublin, J., Avila, G., Awad, A. Kuotb, Badescu, A. M., Balaceanu, A., Barbato, F., Beatty, J. J., Becker, K. H., Bellido, J. A., Berat, C., Berg, A. M. van den, Berisso, M. Gómez, Bertaina, M. E., Bertou, X., Biermann, P. L., Billoir, P., Biteau, J., Blaess, S. G., Blanco, A., Blazek, J., Bleve, C., Boháčová, M., Boncioli, D., Bonifazi, C., Borodai, N., Botti, A. M., Brack, J., Brancus, I., Bravo, O. Martínez, Bretz, T., Bridgeman, A., Briechle, F. L., Buchholz, P., Bueno, A., Buitink, S., Buscemi, M., Caballero-Mora, K. S., Caccianiga, L., Cancio, A., Canfora, F., Caramete, L., Caruso, R., Casado, A. López, Castellina, A., Castillo, J. Alvarez, Castro, M. L. Díaz, Cataldi, G., Cazon, L., Chavez, A. G., Chinellato, J. A., Chudoba, J., Clay, R. W., Cobos, A., Colalillo, R., Coleman, A., Collica, L., Coluccia, M. R., Conceição, R., Consolati, G., Contreras, F., Cooper, M. J., Coutu, S., Covault, C. E., Cronin, J., Cárdenas, B. Vargas, D'Amico, S., D'Olivo, J. C., Daniel, B., Dasso, S., Daumiller, K., Dawson, B. R., de Almeida, R. M., de Carvalho, W. Rodrigues, de Jong, S. J., De Mauro, G., De Mitri, I., de Oliveira, J., de Oliveira, M. A. Leigui, de Souza, V., Debatin, J., Deligny, O., Di Giulio, C., Di Matteo, A., Diogo, F., Dobrigkeit, C., Dorosti, Q., Dova, M. T., Dundovic, A., Durán, M. Suarez, Ebr, J., Elipe, G. Torralba, Engel, R., Erdmann, M., Erfani, M., Escobar, C. O., Espadanal, J., Etchegoyen, A., Falcke, H., Farrar, G., Fauth, A. C., Fazzini, N., Fenu, F., Fernandez, G. Rodriguez, Fick, B., Figueira, J. M., Filipčič, A., Fratu, O., Freire, M. M., Fujii, T., Fuster, A., Gaior, R., Galicia, J. F. Valdés, Garcia-Pinto, D., García, B., Gaté, F., Gemmeke, H., Gherghel-Lascu, A., Ghia, P. L., Giaccari, U., Giammarchi, M., Giller, M., Glaser, C., Golup, G., González, N., Gorgi, A., Gorham, P., Greus, F. Salesa, Grillo, A. F., Grubb, T. D., Guarino, F., Guedes, G. P., Głas, D., Hampel, M. R., Hansen, P., Harari, D., Harrison, T. A., Harton, J. L., Haungs, A., Hebbeker, T., Heck, D., Heimann, P., Herve, A. E., Hill, G. C., Hojvat, C., Holt, E., Homola, P., Horvath, P., Hrabovský, M., Huege, T., Hulsman, J., Hörandel, J. R., Insolia, A., Isar, P. G., Jandt, I., Jansen, S., Johnsen, J. A., Josebachuili, M., Kambeitz, O., Kampert, K. H., Katkov, I., Keilhauer, B., Kemmerich, N., Kemp, E., Kemp, J., Kieckhafer, R. M., Klages, H. O., Kleifges, M., Kleinfeller, J., Krause, R., Krohm, N., Kuempel, D., Kunka, N., Kääpä, A., LaHurd, D., Lauscher, M., Legumina, R., Letessier-Selvon, A., Lhenry-Yvon, I., Link, K., Lopes, L., Luce, Q., Lucero, A., Luz, R. J. Barreira, López, R., Malacari, M., Mallamaci, M., Mandat, D., Mantsch, P., Mariazzi, A. G., Mariş, I. C., Marsella, G., Martello, D., Martinez, H., Mathes, H. J., Mathys, S., Matthews, J., Matthews, J. A. J., Matthiae, G., Mayotte, E., Mazur, P. O., Medina, C., Medina-Tanco, G., Melo, D., Menshikov, A., Merenda, K. -D., Meza, J. J. Masías, Mezek, G. Kukec, Micheletti, M. I., Middendorf, L., Minaya, I. A., Miramonti, L., Mitrica, B., Mockler, D., Mollerach, S., Montanet, F., Morello, C., Mostafá, M., Muller, M. A., Mussa, R., Müller, A. L., Müller, G., Müller, S., Naranjo, I., Nellen, L., Neto, J. R. T. de Mello, Nguyen, P. H., Niculescu-Oglinzanu, M., Niechciol, M., Niemietz, L., Niggemann, T., Nitz, D., Nosek, D., Novotny, V., Nožka, H., Núñez, L. A., Ochilo, L., Oikonomou, F., Olinto, A., Palatka, M., Pallotta, J., Papenbreer, P., Parente, G., Parra, A., Paul, T., Pech, M., Pedreira, F., Peixoto, C. J. Todero, Pelayo, R., Pereira, L. A. S., Perlín, M., Perrone, L., Peters, C., Petrera, S., Peña-Rodriguez, J., Phuntsok, J., Piegaia, R., Pierog, T., Pieroni, P., Pimenta, M., Pirronello, V., Platino, M., Plum, M., Porowski, C., Prado, R. R., Presti, D. Lo, Privitera, P., Prouza, M., Pękala, J., Quel, E. J., Querchfeld, S., Quinn, S., Quispe, I. D. Vergara, Ramos-Pollan, R., Rautenberg, J., Ravignani, D., Revenu, B., Ridky, J., Risse, M., Ristori, P., Rizi, V., Rogozin, D., Rojo, J. Rodriguez, Roncoroni, M. J., Roth, M., Roulet, E., Rovero, A. C., Ruehl, P., Saffi, S. J., Saftoiu, A., Salamida, F., Salazar, H., Saleh, A., Salina, G., Samarai, I. Al, Sanchez-Lucas, P., Santos, E., Santos, E. M., Sarazin, F., Sarmento, R., Sarmiento, C. A., Sato, R., Schauer, M., Scherini, V., Schieler, H., Schimp, M., Schmidt, D., Scholten, O., Schovánek, P., Schröder, F. G., Schulz, A., Schumacher, J., Sciutto, S. J., Segreto, A., Settimo, M., Shadkam, A., Shellard, R. C., Sigl, G., Silli, G., Sima, O., Snow, G. R., Sommers, P., Sonntag, S., Sorokin, J., Squartini, R., Stanca, D., Stanič, S., Stasielak, J., Stassi, P., Strafella, F., Suarez, F., Sudholz, T., Suomijärvi, T., Supanitsky, A. D., Swain, J., Szadkowski, Z., Sánchez, F., Taboada, A., Taborda, O. A., Tapia, A., The Pierre Auger Collaboration, Theodoro, V. M., Timmermans, C., Tomankova, L., Tomé, B., Travnicek, P., Trini, M., Ulrich, R., Unger, M., Urban, M., Valiño, I., Valore, L., van Aar, G., van Bodegom, P., van Vliet, A., Varela, E., Varner, G., Veberič, D., Verzi, V., Vicha, J., Villaseñor, L., Vitale, P. F. Gómez, Vorobiov, S., Vázquez, R. A., Wahlberg, H., Wainberg, O., Walz, D., Watson, A. A., Weber, M., Weindl, A., Wiencke, L., Wilczyński, H., Winchen, T., Wirtz, M., Wittkowski, D., Wundheiler, B., Yang, L., Yelos, D., Yushkov, A., Zas, E., Zavrtanik, D., Zavrtanik, M., Zepeda, A., Zimmermann, B., Ziolkowski, M., Zong, Z., Zuccarello, F., Śmiałkowski, A., Šmída, R.   +404 more
core   +3 more sources

CREATION AND APPROBATION OF A LOW-FREQUENCY RADIO ASTRONOMY ANTENNA FOR STUDIES OF OBJECTS OF THE UNIVERSE FROM THE MOON'S FARSIDE [PDF]

Radio Physics and Radio Astronomy, 2021
Purpose: Theoretical and experimental studies of the active antenna – an element of the low-frequency radio telescope antenna array for the future observatory on the farside of the Moon.
I. N. Bubnov, O. O. Konovalenko, P. L. Tokarsky, O. M. Korolev, S. M. Yerin, L. O. Stanislavsky   +5 more
doaj   +1 more source

Experimental study of on-body radio channel performance of a compact ultra wideband antenna [PDF]

, 2015
In this paper, on-body radio channel performance of a compact ultra wideband (UWB) antenna is investigated for body-centric wireless communications.
Abbasi, Qammer H., Ashique, Ratil Hasnat, Khan, Mohammad Monirujjaman, Rahman, Mirazur   +3 more
core   +1 more source

Energy efficiency of transmit diversity systems under a realistic power consumption model [PDF]

, 2013
We compare the downlink energy efficiency of spatial diversity multiple transmit antenna schemes. We determine the minimum required transmit power for a given outage probability.
Brante, G., Imran, M.A., Kakitani, M.T., Souza, R.D.   +3 more
core   +1 more source