Backscattered Spectra from Rotating and Vibrating Short Wires and Their Relation to the Identification Problem PDF Download

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Backscattered Spectra from Rotating and Vibrating Short Wires and Their Relation to the Identification Problem

Backscattered Spectra from Rotating and Vibrating Short Wires and Their Relation to the Identification Problem PDF Author: Ronald G. Newburgh
Publisher:
ISBN:
Category : Backscattering
Languages : en
Pages : 40

Book Description
In the report Rayleigh scattering for a short wire is examined for two simple motions, rotation and vibration. Rotation of the wire causes an amplitude modulation and vibration causes a phase modulation. Each of these modulations influences the backscattered spectra so that the characteristic frequency of the periodic motion appears. For the rotating wire, it is twice the rotation frequency. From the spectra it is possible to recognize the type of motion responsible. The study therefore serves as a first step in the development of models for complicated motions of actual objects such as tanks and trucks, thereby leading to possible vehicle signature classification schemes. The appendices include: a brief discussion of the formalism of polarization scattering matrices; a short examination of the relation between the scattered spectra due to periodic motions and the conventional Doppler effect; and an examination of the analogy between the rotating and vibrating wires and molecules as conventional Raman scatters, including a brief section on the energetics of the scattering process.
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