%% Specify Bounding Ellipse as Lower Bound
% Create a requirement object, and specify the bounding ellipse as a lower bound. Use default values for the location of the center, radii, and rotation of the bounding ellipse.

Requirement = sdo.requirements.PhasePlaneEllipse('Type','>=');

% The requirement object specifies that the phase plane trajectory of test signals should lie outside the ellipse.
% Copyright 2012 The MathWorks, Inc.