Title : 
Control of inhomogeneous ensembles in the presence of a random periodic drift
         
        
            Author : 
Owrutsky, P. ; Khaneja, N.
         
        
            Author_Institution : 
Sch. of Eng. & Appl. Sci., Harvard Univ., Cambridge, MA, USA
         
        
        
        
        
        
            Abstract : 
This paper motivates control of systems with random yet periodic drift. Numerous physical systems conform to such a model, perhaps the best known is solid state nuclear magnetic resonance experiments in which periodic sample rotation is used to average random affects. We present a control design method that allows for robust selective excitation in the presence of such random, periodic drift.
         
        
            Keywords : 
NMR spectroscopy; control system synthesis; control design; inhomogeneous ensembles; periodic sample rotation; physical systems; random periodic drift; robust selective excitation; solid state nuclear magnetic resonance experiments; Approximation methods; Dispersion; Educational institutions; Nuclear magnetic resonance; Radiation effects; Radio frequency; Trajectory; Ensemble Control; Nuclear Magnetic Resonance; Solid State Spectroscopy;
         
        
        
        
            Conference_Titel : 
American Control Conference (ACC), 2012
         
        
            Conference_Location : 
Montreal, QC
         
        
        
            Print_ISBN : 
978-1-4577-1095-7
         
        
            Electronic_ISBN : 
0743-1619
         
        
        
            DOI : 
10.1109/ACC.2012.6315563