| Synchronization of Nonautonomous Chaotic Systems. |
05 DEC 1995 |
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| Authors:
Thomas L. Carroll; Louis M. Pecora; James F. Heagy; DEPARTMENT OF THE NAVY WASHINGTON DC
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 | A cascaded synchronized system includes a nonlinear transmitter, a nonlinear cascaded receiver, a phase-detector/controller coupled to the receiver, and a signal generator also coupled to the receiver. The transmitter is responsive to an externally generated transmitter forcing signal for producing and transmitting a chaotic communications signal containing phase information. The cascaded receiver is responsive to a receiver forcing signal and to the chaotic communications signal for producing a chaotic receiver ... |
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| Control System for Tracking Nonlinear Systems. |
15 AUG 1995 |
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| Authors:
Ira B. Schwartz; Ioana Triandaf; Thomas L. Carroll; Louis M. Pecora; DEPARTMENT OF THE NAVY WASHINGTON DC
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| A control system for tracking the operation of a nonlinear system has two parts: a tracking subsystem and a controlling subsystem. The tracking subsystem generates a parametric signal and the controlling subsystem controls and stabilizes the nonlinear system operating under operating conditions corresponding to that parametric signal. The controlling subsystem includes a modulator responsive to the parametric signal and to a feedback signal for producing and applying an input signal ... |
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| Cascading Synchronized Chaotic Systems. |
03 JAN 1995 |
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| Authors:
Louis M. Pecora; Thomas L. Carroll; DEPARTMENT OF THE NAVY WASHINGTON DC
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| A cascaded synchronized nonlinear system includes a nonlinear transmitter having stable first and second subparts. The first subpart produces a first transmitter signal for driving the second subpart and the second subpart produces a second transmitter signal for driving the first subpart. The nonlinear transmitter transmits the second transmitter signal to a nonlinear cascaded receiver. The receiver, being for producing an output signal in synchronization with the second transmitter signal, ... |
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| System for Producing Synchronized Signals. |
14 SEP 1993 |
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| Authors:
Louis M. Pecora; DEPARTMENT OF THE NAVY WASHINGTON DC
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| A system for producing two synchronized signals comprises a nonlinear dynamical primary system and a nonlinear dynamical secondary response subsystem. The primary system comprises a nonlinear dynamical drive subsystem for producing at least one drive signal, and a nonlinear dynamical primary response subsystem responsive to said at least one drive signal for producing a primary signal, wherein said primary response subsystem has a complete set of at least one primary ... |
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| Method and Apparatus for Pseudoperiodic Drive. |
11 MAY 1992 |
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| Authors:
Thomas L. Carroll; Louis M. Pecora; DEPARTMENT OF THE NAVY WASHINGTON DC
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| A controller is provided for driving at least two systems in synchronization with one another. The controller provides a pseudoperiodic drive to drive the two systems at a desired frequency and to ensure that the two systems are synchronized . The pseudoperiodic drive can be produced by combining a periodic drive with a chaotic drive, noise drive or an incommensurate frequency drive. Any of these types of drives can be ... |
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| Method and Apparatus for Synchronization of Dynamical Physical Systems. |
19 FEB 1991 |
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| Authors:
Louis M. Pecora; Thomas L. Carroll; DEPARTMENT OF THE NAVY WASHINGTON DC
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| A synchronized nonlinear dynamical physical system is composed of first and second parts which produce output responses synchronized with respect to each other. The first part comprises a plurality of interconnected components producing intermediated responses at the junctions between the components; and the second part corresponds to a subpart of the first part selected so that the sub-Lyapunov exponents of the second part are all negative when the second part ... |
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