TY - CONF AU - Belső, Zoltán AU - Szilágyi, Tamás AU - Pap, László AU - Elek, Kálmán AU - Koller, István TI - Joint Application of Spread Spectrum and OFDM modulation for Microwave Radio Communication Used for Unmanned Aerial Vehicle T2 - IEE VTC2011-Spring PY - 2011 UR - https://m2.mtmt.hu/api/publication/2680300 ID - 2680300 LA - English DB - MTMT ER - TY - CHAP AU - Belső, Zoltán AU - Tamás, Szilágyi AU - Pap, László AU - Elek, Kálmán AU - Koller, István ED - Hanzo, L. TI - Joint application of spread spectrum and OFDM modulation for microwave radio communication used for Unmanned Aerial Vehicle T2 - 2011 IEEE 73rd Vehicular Technology Conference (VTC Spring) PB - IEEE CY - New York, New York SN - 1424483328 PY - 2011 DO - 10.1109/VETECS.2011.5956330 UR - https://m2.mtmt.hu/api/publication/1608727 ID - 1608727 LA - English DB - MTMT ER - TY - JOUR AU - Levendovszky, János AU - Elek, Kálmán AU - Gaál, József TI - Adaptív jelfeldolgozási algoritmusok a kommunikációs technológiákban JF - HIRADÁSTECHNIKA (1962) J2 - HIRADÁSTECHNIKA VL - 64 PY - 2009 IS - Klnsz SP - 96 EP - 102 PG - 7 SN - 0018-2028 UR - https://m2.mtmt.hu/api/publication/2652291 ID - 2652291 LA - Hungarian DB - MTMT ER - TY - BOOK AU - Elek, Kálmán AU - Kovács, Lóránt TI - Híradástechnika példatár ET - 0 PB - Műegyetemi Kiadó CY - Budapest PY - 2004 SP - 134 UR - https://m2.mtmt.hu/api/publication/2619107 ID - 2619107 LA - Hungarian DB - MTMT ER - TY - CHAP AU - Elek, Kálmán AU - Pfliegel, Péter ED - Čmejla, R ED - Pollák, P ED - Prokš, J TI - On Implementation of a MUlticarrieer Modem with Ortogonal Frequency Division Multiplexing T2 - Proceedings of the Polish-Hungarian-Czech Workshop on Circuit Theory, Signal Processing, and Applications PB - Czech Technical University in Prague CY - Prague SN - 8001028259 PY - 2003 SP - 71 EP - 76 PG - 6 UR - https://m2.mtmt.hu/api/publication/2606478 ID - 2606478 AB - The paper describes a multicarrieer digital modem implemented on Texas Instruments TMS320C5402 DSP board. Message symbols are segmented into dibits transmitted in parallel via several adjacent narrow-band channels by differential quadrature phase-shift keying (DQPSK). Algorithms used for symbol synchronization and elimination of channel interference are discussed. LA - English DB - MTMT ER - TY - JOUR AU - Elek, Kálmán AU - Gaál, József AU - Koller, István AU - Visky, K AU - Rabata, J TI - Universal QAM demodulator with automatic modulation identification (AMI) JF - JOURNAL ON COMMUNICATIONS (BUDAPEST) J2 - J COMMUN (BP) VL - 47 PY - 1996 IS - 9 SP - 27 EP - 31 PG - 5 SN - 0866-5583 UR - https://m2.mtmt.hu/api/publication/2644374 ID - 2644374 LA - English DB - MTMT ER - TY - JOUR AU - Elek, Kálmán AU - Gál, Zoltán AU - Phan, L H AU - Szabó, Csaba Attila TI - ATM LAN Network Design JF - JOURNAL ON COMMUNICATIONS (BUDAPEST) J2 - J COMMUN (BP) VL - 47 PY - 1996 IS - 1-2 SP - 17 EP - 23 PG - 7 SN - 0866-5583 UR - https://m2.mtmt.hu/api/publication/2612783 ID - 2612783 LA - English DB - MTMT ER - TY - JOUR AU - Elek, Kálmán AU - Gaál, József TI - Implementation of trellis coded modems JF - JOURNAL ON COMMUNICATIONS (BUDAPEST) J2 - J COMMUN (BP) VL - 45 PY - 1994 IS - 3 SP - 23 EP - 29 PG - 7 SN - 0866-5583 UR - https://m2.mtmt.hu/api/publication/2652292 ID - 2652292 LA - English DB - MTMT ER - TY - CONF AU - Elek, Kálmán AU - Gaál, József AU - Koller, István AU - Pfliegel, Péter TI - PCDSP: A TMS320C25-based Multiprocessor Board T2 - Czech-Polish-Hungarian Workshop On Circuit Theory and Applications PB - Czech Technical University in Prague PY - 1993 SP - 69 EP - 73 PG - 5 UR - https://m2.mtmt.hu/api/publication/2606470 ID - 2606470 AB - The paper describes a digital signal processing board designed at the Dept. Of Telecommunication, TUB. The board is a plug-in used in IBM PC/AT and compatibles. The board is easy to handle and can be well used as an evaluation module and as a general purpose DSP module. LA - English DB - MTMT ER - TY - JOUR AU - Elek, Kálmán AU - Granát, János AU - Pfliegel, Péter TI - Complex Young's Modulus Of Annular Discs JF - PERIODICA POLYTECHNICA-ELECTRICAL ENGINEERING J2 - PERIOD POLYTECH ELECTR ENG VL - 24 PY - 1980 IS - 1-2 SP - 77 EP - 90 PG - 14 SN - 0324-6000 UR - https://m2.mtmt.hu/api/publication/2606463 ID - 2606463 AB - Modulus of elasticity of materials is usually measured on specimens of simple shape, e.g. bars, plates. It is often required to determine the Young's modulus on various products of specific shapes. This is, for example the case of grinding wheels. Fortunately, they have a fairly simple shape and therefore can be used as specimens. Vibration of thin homogeneous circular plates has been described previously in several papers, however, the material of the plates was considered as lossless. This paper describe the solution of the wave equation of lossy, thin annular discs in flexural vibration and derive relationships between the complex Young's modulus and the complex eigenfrequency of the disc. LA - English DB - MTMT ER -