Toplam kayıt 415, listelenen: 411-415
Adaptive Kalman receiver for OFDM systems with transmit diversity in mobile wireless channels
(Fachverlag Schiele Schon, 2004-12)
A new joint channel tracking and symbol detection scheme is proposed in this paper for pilot symbol assisted transmit diversity OFDM systems by exploiting the correlation of the adjacent subchannels. Modelling the channel ...
Tip singularity of the electromagnetic field at the apex of a material cone
(SPRINGER-VERLAG BERLIN, 2004)
The tip Singularity of the electromagnetic field at the apex of a cone is investigated in its most general framework. To this end one considers, without loss of generality, a circularly symmetric cone which separates two ...
Non-data aided EM-based channel estimation for OFDM systems with time-varying fading channels
(KLUWER ACADEMIC PUBLISHERS, 2002)
In this paper, a computationally efficient algorithm is presented for maximum a posteriori (MAP) channel estimation for OFDM systems employing M-PSK modulation scheme with additive Gaussian noise, based on the Expectation ...
Measurement and Assessment of Fatigue Life of Spot-Weld Joints
(ASME-AMER SOC MECHANICAL ENG, 2009-01)
Spot-weld joints are commonly used to fasten together metal sheets. Because fatigue fracture is the most critical failure mode for these joints under fluctuating loads, understanding their fatigue failure behavior and ...
Tunneling Rates of Single Electrons on Liquid Helium in an Extracting Field
(SPRINGER/PLENUM PUBLISHERS, 2009-07)