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Models and Predictions of Scattered Radio Waves on Rough Surfaces
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- Chen, Ming, 1972 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Viberg, Mats, 1961 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
- Felter, Stefan, 1970 (author)
- (creator_code:org_t)
- 2007
- 2007
- English.
- In: IEEE ICASSP 2007 (Honolulu, Hawaii, USA, 2007). ; 3, s. 785-788
- Conference paper (peer-reviewed)
Abstract
Subject headings
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- 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.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Annan elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Other Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
Keyword
- Prediction methods
- Adaptive Kalman filtering
- Rayleigh channels
- Wave propagation
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- ref (subject category)
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