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Continuous-time bli...
Continuous-time blind channel deconvolution using Laguerre shifts
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- Hansson, Anders (författare)
- KTH,Signaler, sensorer och system
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- Wahlberg, Bo, 1959- (författare)
- KTH,Signaler, sensorer och system
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(creator_code:org_t)
- 2000
- 2000
- Engelska.
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Ingår i: Mathematics of Control, Signals, and Systems. - 0932-4194 .- 1435-568X. ; 13:4, s. 333-346
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Abstract
Ämnesord
Stäng
- The objective of this paper is to study the problem of continuous-time blind deconvolution of a pulse amplitude modulated signal propagated over an unknown channel and perturbed by additive noise. The main idea is to use so-called Laguerre filters to estimate a continuous-time model of the channel. Laguerre-filter-based models can be viewed as an extension of finite-impulse-response (FIR) models to the continuous-time case, and lead to compact and parsimonious linear-in-the-parameters models. Given an estimate of the channel, different symbol estimation techniques are possible. Here, the shift property of Laguerre filters is used to derive a minimum mean square error estimator to recover the transmitted symbols. This is done in a way that closely resembles recent FIR-based schemes for the corresponding discrete-time case. The advantage of this concept is that physical a priori information can be incorporated in the model structure, like the transmitter pulse shape.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Reglerteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Control Engineering (hsv//eng)
Nyckelord
- Communication channels (information theory)
- Equalizers
- Error analysis
- FIR filters
- Intersymbol interference
- Mathematical models
- Perturbation techniques
- Spurious signal noise
- Continuous-time blind channel deconvolution
- Laguerre shifts
- Signal filtering and prediction
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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