Accession Number : ADA265354


Title :   Pulse Formation and Spectral Shaping in Chaotic Systems


Descriptive Note : Final rept. Dec 1992-Jan 1993


Corporate Author : ARMY RESEARCH LAB ADELPHI MD


Personal Author(s) : Hayes, Scott


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a265354.pdf


Report Date : May 1993


Pagination or Media Count : 22


Abstract : The control of chaos using tiny perturbations for the formation of time-limited waveforms(pulses) and the synthesis of desired spectral characteristics is discussed. A technique for doing this using a symbolic dynamical system model is developed. This report is intended to demonstrate that the highly successful methods for controlling chaos with microscopic control signals might be used to form pulses and to control the power spectrum of a signal source such as a microwave power source or a laser. Since the control circuitry in a physical system would need to deliver only tiny low-power control perturbations, the realization of this technique in a high-power source would allow for the formation of shaped pulses with the source running in a highly efficient nonlinear chaotic mode. Shaping the power spectrum is of interest for the practical problem of delivering the energy to a band-limited transmission line or to an antenna.


Descriptors :   *CHAOS , *POWER SPECTRA , *SPECTRAL ENERGY DISTRIBUTION , HIGH POWER , LOW POWER , ENERGY , TRANSMISSION LINES , SPECTRA , SIGNALS , PERTURBATIONS , A BAND , POWER , ANTENNAS , PULSES , LASERS , MICROWAVES , WAVEFORMS , MODELS , DYNAMICS


Subject Categories : Numerical Mathematics
      Theoretical Mathematics


Distribution Statement : APPROVED FOR PUBLIC RELEASE