Phase, Phase Signatures, and Simple Inverse Properties of Backscattered Fields from Thin Rods


Book Description

Numerical and analytical methods are used to examine properties of the phase of backscattered fields from perfectly conducting thin rods as functions of both aspect angle and frequency. Emphasis is placed on special conditions under which the phase is simply related to the body length and thickness. Calculated results are shown to be in good agreement with measured ones. Implications of the phase properties for dual frequency phase signatures are discussed and examples given. The amplitude of the backscattered field is shown to have a frequency-dependent shape that is essentially independent of aspect angle through the first resonant maximum. Measurement procedures that might be used to separately determine rod thicknesses and lengths are suggested. (Author).










An Implementation of Conventional Methods of Measuring the Amplitude and Phase of Backscatter Fields


Book Description

The report describes an experimental equipment and procedure based on conventional methods in a form well-suited for laboratory measurements without expensive specialized components of the phase as well as amplitude of backscattered fields of smaller, resonant-region models on simulated free-space scattering ranges. Practical details that affect the ease of measurement and accuracy are emphasized. Simple methods of probing the incident fields over the model space are discussed, and sample results are presented. (Author).







Government Reports Index


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Instrumentation Papers


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Report on Research at AFCRL.


Book Description