System behavior modification for maintenance of chaos
AssigneeThe United States of America as represented by the Secretary of the Navy
InventorsMark L. Spano, William L. Ditto, Visarath In
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Abstract
An accessible parameter of a chaos embodying system of a physical or biological type is monitored by extraction of measurement data and recordation thereof on a return map as a dynamic representation of the system activity, from which the magnitude and timing of intervention is determined and applied to the system in order to sustain chaos behavior.
Claims10
A method of modifying activity of a system within which chaos occurs intermittently by intervention, including the steps of:
- recording said activity of the system in terms of a time-dependent parameter thereof:
- plotting the recording of said parameter as measurement points on a return map to form a dynamic representation of the system activity;
- identifying a chaos regime of said activity by monitoring variations in the plotted parameter;
- and instituting said intervention to the activity of the system following said identification of the chaos regime for maintenance thereof.
A method of modifying activity of a system intervention, including the steps of:
- measuring a parameter of said activity in terms of time-dependent data;
- recording said time-dependent data to form a dynamic representation of said activity;
- monitoring changes in the data recorded on said dynamic representation to identify approach and departure of the activity from a chaos regime;
- and instituting said intervention in the activity in response to the monitoring of said departure from the chaos regime to restore and maintain the chaos regime.
In an anticontrol method of maintaining chaos within a system by perturbation of an accessible parameter of the system to interrupt progression thereof to periodic behavior, the improvement residing in the steps of:
- formulating a dynamic representation of the system reflecting variation of said parameter by measurement points on a return map;
- locating a loss region of measurement points on the return map along a path of said progression to the periodic behavior;
- generating a behavior modifying signal to divert the measurement points from said path;
- and applying said behavior modifying signal to the system for said perturbation of the parameter during said progression thereof along said path from the loss region.
Dependencies are inferred from the claim text.