The frequency-response masking (FRM) technique is an efficient method for realizing sharp one-dimensional (1-D) filters. Sharp 1-D filters realized using the FRM technique have considerably lower complexity than those realized in the direct form. In this paper, we present an extension of the FRM technique to the synthesis of sharp two-dimensional (2-D) diamondshaped (DS) filters. The new techni...

The frequency-response-masking (FRM) technique proposed by Lim has proven effectiveness for the design of very sharp digital filters with reduced implementation complexity compared to other options. In this paper, we propose a constrained optimization method for the design of basic and multistage FRM filters where the prototype filters are of infinite-impulse response (IIR) with prescribed pole...

A computationally efficient method is presented - 'fast rotational matching' or FRM - that significantly accelerates the search of the three rotational degrees of freedom (DOF) in biomolecular matching problems. This method uses a suitable parametrization of the three-dimensional rotation group along with spherical harmonics, which allows efficient computation of the Fourier Transform of the ro...

Secondary organic aerosol (SOA) in the southeastern US is investigated by analyzing the spatial-temporal distribution of water-soluble organic carbon (WSOC) and other PM2.5 components from 900 archived 24-h Teflon filters collected at 15 urban or rural EPA Federal Reference Method (FRM) network sites throughout 2007. Online measurements of WSOC at an urban/rural-paired site in Georgia in the su...

FRM is an experimental, knowledge-based system that assists in the judgmental aspects of budget planning and financial resource management. Problem solving in this domain requires many kinds of knowledge from many sources. We represent domain knowledge uniformly as constraints and view resource management and planning problems as constraint satisfaction and resolution tasks. We sketch here the ...

Critical infrastructure (CI) networks are essential for the survival and functionality of society economy. Disruptions to CI services cascading effects these disruptions not currently included in flood risk management (FRM). The work presented this study integrates into every step FRM, including analysis, mitigation communication. A network modelling technique enables consequences be quantified...

FREQUENCY-RESPONSE MASKING TECHNIQUE Miguel B. Furtado Jr., Paulo S. R. Diniz, and Sergio L. Netto Programa de Engenharia Elétrica, COPPE/EPoli/UFRJ PO BOX 68504, Rio de Janeiro, RJ, 21945-970, BRAZIL furtado, diniz, sergioln @lps.ufrj.br ABSTRACT The frequency-response masking (FRM) method allows the design of selective prototype filters for cosine-modulated filter banks (CMFBs) with a reduced...

Introduction....................................................................................................................1 Fluid Losses ...................................................................................................................2 Voluntary/Involuntary Dehydration...............................................................................3 Hypohydration/Dehydrati...