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Limitations of Constrained CRB and an Alternative Bound
2018 IEEE Statistical Signal Processing Workshop (SSP), 2018The constrained Cramer-Rao bound (CCRB) is a mean-squared-error (MSE) lower bound for non-Bayesian constrained parameter estimation under some unbiasedness conditions. In this paper, we demonstrate limitations of this bound in the case of nonlinear parametric constraints. We consider the problem of constant modulus signal estimation.
Eyal Nitzan +2 more
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Alloy Digest, 1979
Abstract CARPENTER CRB-7 is a corrosion-resistant, wear-resistant and secondary-hardening steel for high-temperature bearings. It has high quenched-and-tempered hardness and maintains high hardness at elevated temperatures. CRB-7 is a martensitic type of stainless steel.
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Abstract CARPENTER CRB-7 is a corrosion-resistant, wear-resistant and secondary-hardening steel for high-temperature bearings. It has high quenched-and-tempered hardness and maintains high hardness at elevated temperatures. CRB-7 is a martensitic type of stainless steel.
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Journal of Financial Research, 1990
AbstractThis study provides a valuation model to price Commodity Research Bureau Index futures contracts, now traded at the New York Futures Exchange. An empirical analysis suggests that substantial mispricing was exhibited during the early months of trading in an unseasoned Commodity Research Bureau Index futures market.
Michael C. Ehrhardt, Alan L. Tucker
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AbstractThis study provides a valuation model to price Commodity Research Bureau Index futures contracts, now traded at the New York Futures Exchange. An empirical analysis suggests that substantial mispricing was exhibited during the early months of trading in an unseasoned Commodity Research Bureau Index futures market.
Michael C. Ehrhardt, Alan L. Tucker
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A tenfold twin of the CrB structure type
Acta Crystallographica Section A Foundations and Advances, 2018NiZr crystallized from an amorphous matrix or solidified from an undercooled melt exhibits a tenfold twinned microstructure, which is explained by an ideal twin model utilizing special geometric properties of the CrB structure type. The model is unique in several ways: (i) it contains no adjustable parameters other than a scaling factor accounting for ...
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All data, analysis code, and materials for the manuscript: "Stop the Count!” – How Reporting Partial Election Results Fuels Beliefs in Election Fraud (Psychological Science)
Alves, Hans +2 more
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Alves, Hans +2 more
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Effects of anchor placement on mean-CRB for localization
2011 The 10th IFIP Annual Mediterranean Ad Hoc Networking Workshop, 2011In this paper we discuss the lower bound i.e. the Cramer-rao-bound (CRB) on the accuracy of localization of nodes in a wireless network. We investigate the effects of anchor (or base station) placement on optimal target node positioning. The optimal and worst anchor positions are determined through extended simulation by comparing their mean CRB ...
Naveed Salman +3 more
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On AR modulated harmonics: CRB and parameter estimation
1996 IEEE International Conference on Acoustics, Speech, and Signal Processing Conference Proceedings, 2002The problem of estimation of harmonics with randomly time-varying amplitude is addressed. We deduce closed forms of the Cramer-Rao bounds by modeling these fluctuations by a Gaussian or non-Gaussian AR process. For the frequency estimation, the paper compares a parametric approach based on the ARMA representation of the signal and a non-parametric ...
Mounir Ghogho, Bernard Garel
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Periodic CRB for non-Bayesian parameter estimation
2011 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2011In many practical parameter estimation problems, the appropriate criterion is periodic in the parameter space. This paper considers the mean square periodic error (MSPE) criterion combined with periodic unbiasedness for which the conventional Cramer-Rao bound (CRB) does not provide a valid bound.
Tirza Routtenberg, Joseph Tabrikian
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2019
Une collection vivante d'espèces sauvages de Coffea est localisée à La Réunion, sur le site de Bassin Martin près de Saint-Pierre, sur une superficie d'un hectare sous ombrage de Grevillea robusta. Elle a été mise en place par l'IRD entre 2004 et 2010 grâce au soutien de l'Union européenne et de la Région Réunion. Cette collection a été constituée à la
Dussert, Stéphane +2 more
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Une collection vivante d'espèces sauvages de Coffea est localisée à La Réunion, sur le site de Bassin Martin près de Saint-Pierre, sur une superficie d'un hectare sous ombrage de Grevillea robusta. Elle a été mise en place par l'IRD entre 2004 et 2010 grâce au soutien de l'Union européenne et de la Région Réunion. Cette collection a été constituée à la
Dussert, Stéphane +2 more
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Contracts of employment and CRB checks
Nursing and Residential Care, 2012Colin godfrey talks through the benefts of supplying written contracts to avoid disputes should conficts arise between workers and employers, and to establish the obligations and duties of staff
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