RADIO ANTENNAS AND PROPAGATION pot
RADIO ANTENNAS AND PROPAGATION pot
... certain direction, towards a known location 14 Radio Antennas and Propagation |,,,, ,,,,= , ,,, , i Table 1.1 The radio bands ,, i i Name of band Extra High Frequency, EHF Super High Frequency, ... warships, both surface and submarine, and the command and control of military aircraft. In the second quarter of the twentieth century radio navigation systems, which en...
Ngày tải lên: 29/06/2014, 10:20
ULTRA WIDEBAND COMMUNICATIONS: NOVEL TRENDS – ANTENNAS AND PROPAGATION ppt
... bandwidth". 30 Ultra Wideband Communications: Novel Trends – Antennas and Propagation Ultra-Wideband (UWB) Communications Channel – Theory and Measurements 11 UWB (52) UWB (57) Narrowband (16) Narrowband (16) Parameters ... Wideband Communications: Novel Trends – Antennas and Propagation, Edited by Mohammad A. Matin p. cm. ISBN 978-953-307-452-8 Ultra Wideband Communi...
Ngày tải lên: 29/06/2014, 13:20
Báo cáo sinh học: "Radio wave propagation in curved rectangular tunnels at 5.8 GHz for metro applications, simulations and measurements" pot
... targeted handover times, etc. Consequently, metro operators and industries need efficient radio engineering tools to model the electromagnetic propagation in tunnels for radio planning and network ... control- command and train operation and exploitation. Driverless underground systems are one of the best examples of the use of such wireless radio system deployments based...
Ngày tải lên: 18/06/2014, 22:20
Báo cáo khoa học: "A Comparison of Loopy Belief Propagation and Dual Decomposition for Integrated CCG Supertagging and Parsing" potx
... (DD) or belief propagation (BP) for k iterations, evaluated by labelled and unlabelled F-score (LF/UF) and supertag accuracy (ST). We compare against the previous best result of Clark and Curran ... introduction to conditional random fields. arXiv:stat.ML/1011.4088. J. Yedidia, W. Freeman, and Y. Weiss. 2001. Generalized belief propagation. In Proc. of NIPS. 480 2 CCG and Supertag...
Ngày tải lên: 23/03/2014, 16:20
Electronics Technician Volume 7 Antennas and Wave Propagation
... digital data systems and includes discussions about SNAP II, laptop computers, and desktop computers. Volume 7, Antennas and Wave Propagation, is an introduction to wave propagation, as it pertains ... possible and allowances for fluctuations must be made. Eleven-Year Cycle Sunspots can occur unexpectedly, and the life span of individual sunspots is variable. The ELEVEN-YEAR SUN...
Ngày tải lên: 27/05/2014, 02:43
Báo cáo toán học: " Protection of primary users in dynamically varying radio environment: practical solutions and challenges" pot
... narrowband PUs, e.g., program making and special events (PMSE) devices such as professional wireless microphones with bandwidth of 200 kHz. Note that an explanation of the wideband and narrowband ... ,−8}∪{9, ,50}. • Scenario 3 : Outer wide-band PUs (DVB-T) are detected and two narrow-band PU using and non-contiguous bands (PMSE devices) inside the SU’s band. The indices of the SU’s u...
Ngày tải lên: 20/06/2014, 20:20
Micowave and Millimeter Wave Technologies Modern UWB antennas and equipment Part 9 potx
... spacing, IRE Transactions on Antennas and Propagation, Vol. 9, No. 2, (Mar. 1961) 187-192, ISSN 0096-1973 Microwave and MillimeterWaveTechnologies:ModernUWB antennas and equipment234 0 10 ... 243 Millimeter-wave Radio over Fiber System for Broadband Wireless Communication HaoshuoChen,RujianLin and JiajunYe x Millimeter-wave Radio over Fiber System for Broadban...
Ngày tải lên: 21/06/2014, 11:20
Micowave and Millimeter Wave Technologies Modern UWB antennas and equipment Part 10 potx
... (T) ( C20 o ) and (b) Real and Imaginary parts of relative permittivity r . 90 and all 90 and 1 cos )1( 90 and 2,,0 cos mL Nm vTN L Nm vT m ... measurements. Measurement and modelingofrainintensity and attenuationforthedesign and evaluationofmicrowave and millimeter-wavecommunicationsystems...
Ngày tải lên: 21/06/2014, 11:20
Micowave and Millimeter Wave Technologies Modern UWB antennas and equipment Part 14 pot
... circuits covering the Ka, V and W bands are presented and analyzed. In addition, a Ka band demodulator and a W-band radar sensor prototype are presented. Present and future works are focused ... circuits covering the Ka, V and W bands are presented and analyzed. In addition, a Ka band demodulator and a W-band radar sensor prototype are presented. Present and future works...
Ngày tải lên: 21/06/2014, 11:20
ADVANCED RADIO FREQUENCY IDENTIFICATION DESIGN AND APPLICATIONS potx
... definition of an input current and of a terminal voltage, and a 6 Advanced Radio Frequency Identification Design and Applications Design and Fabrication of Miniaturized Fractal Antennas for Passive UHF ... IEEE Antennas and Propagation S ociety International Symposium, pp. 1011–1014, Jul. 2006. [20] Nikitin, P. & Rao, K. (2006). Theory and measurement of backscattering...
Ngày tải lên: 26/06/2014, 23:21