dc.date.accessioned 2016-08-24T17:54:14Z en dc.date.available 2016-08-24T17:54:14Z en dc.date.issued 2001-08-21 en dc.identifier.uri http://hdl.handle.net/10919/72434 en dc.description.abstract A computationally efficient method for calculating near-optimal solutions to the three-objective, linear control allocation problem is disclosed. The control allocation problem is that of distributing the effort of redundant control effectors to achieve some desired set of objectives. The problem is deemed linear if control effectiveness is affine with respect to the individual control effectors. The optimal solution is that which exploits the collective maximum capability of the effectors within their individual physical limits. Computational efficiency is measured by the number of floating-point operations required for solution. The method presented returned optimal solutions in more than 90% of the cases examined; non-optimal solutions returned by the method were typically much less than 1% different from optimal and the errors tended to become smaller than 0.01% as the number of controls was increased. The magnitude of the errors returned by the present method was much smaller than those that resulted from either pseudo inverse or cascaded generalized inverse solutions. The computational complexity of the method presented varied linearly with increasing numbers of controls; the number of required floating point operations increased from 5.5 i, to seven times faster than did the minimum-norm solution (the pseudoinverse), and at about the same rate as did the cascaded generalized inverse solution. The computational requirements of the method presented were much better than that of previously described facet-searching methods which increase in proportion to the square of the number of controls. en dc.format.mimetype application/pdf en dc.language.iso en_US en dc.publisher United States Patent and Trademark Office en dc.title Computationally efficient control allocation en dc.type Patent en dc.identifier.url http://pimg-fpiw.uspto.gov/fdd/08/789/062/0.pdf en dc.date.accessed 2016-08-19 en dc.type.dcmitype Text en dc.contributor.assignee Virginia Tech Intellectual Properties, Inc. en dc.contributor.inventor Durham, Wayne en dc.date.filed 2000-08-10 en dc.identifier.applicationnumber 9635684 en dc.subject.uspc 318/567 en dc.subject.uspcother 318/568.11 en dc.subject.uspcother 318/568.2 en dc.subject.uspcother 342/90 en dc.subject.uspcother 342/96 en dc.subject.uspcother 700/262 en dc.subject.uspcother 700/1 en dc.subject.uspcother 700/245 en dc.subject.uspcother 700/251 en dc.subject.uspcother 700/252 en dc.subject.uspcother 701/23 en dc.subject.uspcother 901/30 en dc.subject.cpc G05B13/02 en dc.subject.cpc G05B2219/39258 en dc.type.patenttype utility en dc.identifier.patentnumber 6278908 en
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