Multipath time-delay detection and estimation
نویسندگان
چکیده
منابع مشابه
Multipath time-delay estimation
A transmitted and known signal is observed at the receiver through more than one path in additive noise. The problem is to estimate the number of paths and for each of them the associated attenuation and delay. It is a frequent problem in sonar, radar and geophysics. We propose an algorithm that is easy to implement, that has a reasonable computational load and seems to be able to solve the pro...
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A transmitted and known signal is observed at the receiver through more than one path in additive noise. The problem is to estimate the number of paths and, for each of them, the associated attenuation and delay. We propose a deconvolution approach with an additive regularization term built around an `1 norm. The underlying optimization problem is transformed into a quadratic program and is, th...
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Passive time delay estimation in multipath environments is studied in this paper. A novel restrained maximum likelihood (ML) estimator is proposed to estimate the multiple time delays. Unlike traditional ML function which has P global maximum values, restraint conditions limit the ML function of P paths time delays signal with only one global maximum value. Markov chain Monte Carlo (MCMC) algor...
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Line-of-sight (LOS) delay estimation in multipath scenarios is a central problem in global navigation satellite systems (GNSS). Deterministic channel models can be used to describe the multipath environment, but this usually requires the estimation of several nuisance parameters. In order to avoid this effort, stochastic channel models can be used. In this case the multipath statistics have to ...
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Multipath propagation is common in sonar and radar, and it has made the task of time delay estimation much more dif-cult. In this paper, an adaptive algorithm based on a generalized equalization approach is proposed which provides spontaneous measurements of the diierence in arrival times of a signal received at two separated sensors as well as the multipath channel characteristics. The method ...
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ژورنال
عنوان ژورنال: IEEE Transactions on Signal Processing
سال: 1999
ISSN: 1053-587X
DOI: 10.1109/78.738263