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Models and Predictions of Scattered Radio Waves on Rough Surfaces

Ming Chen (Institutionen för signaler och system, Signalbehandling) ; Mats Viberg (Institutionen för signaler och system, Signalbehandling) ; Stefan Felter
IEEE ICASSP 2007 (Honolulu, Hawaii, USA, 2007) Vol. 3 (2007), p. 785-788.
[Konferensbidrag, refereegranskat]

Scattering of radio waves on rough surfaces is investigated using ray tracing techniques, which results in a sinusoidal model with time varying amplitudes. An AR(d) model with nonzero mean is proposed to characterize and predict the time variation of the amplitudes. A covariance sequence based method is proposed to estimate the autoregressive coefficients from the channel observations. An adaptive channel predictor using a Kalman filter is proposed to predict the complex amplitudes of the scattering signal. The proposed method outperforms other sinusoidal modeling based channel predictors and Linear Predictors with single scattering scenarios.

Nyckelord: Adaptive Kalman filtering, Wave propagation, Rayleigh channels, Prediction methods



Denna post skapades 2007-01-15. Senast ändrad 2014-09-02.
CPL Pubid: 22667

 

Institutioner (Chalmers)

Institutionen för signaler och system, Signalbehandling (1900-2017)

Ämnesområden

Elektroteknik

Chalmers infrastruktur

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