Abstract
In this paper the electromagnetic similitudes for lossy and dispersive system are discussed. If both the geometric size of an object and incident wavelength are scaling-down simultaneously by analogy with microwave band, the inconsistencies exist for laser scattering in visible and near infrared bands. Another method of measurements and simulation for laser scattering in the geometric model is analyzed. That is, the geometric size of the object is only scaled down but the incident wavelength, material and configuration are keeping to not change. Although this way does not satisfy the principles of the electrodynamic similitude, it can overcome the electromagnetic inconsistencies for laser scattering. It is possible that the LRCS of the full-scale tested object are evaluated by those of the corresponding scaling-down model at identical frequency to establish theoretical models and data basis for LRCS of objects.
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References
J. A. Stratton, “Electromagnetic Theory”, McGraw-Hill, New York, p488–490, 1941.
G. Sinclair, “Theory of models of electromagnetic systems”, Proc. IRE, 36(3), p1364–1370, 1948.
C. R. Schumacher, “Electrodynamic similitude and physical modeling of nondispersive targets”, J. Appl. Phys., 62(7), p2616–2625, 1987.
Shi Zhendong, “Similitude for lossy electromagnetic system”, J. Appl. Sciences, 9(1), 1991.
Wu Zhensen, “IR laser backscattering from an arbitrarily shaped dielectric object with rough surface”, J. of Electronics, 10(4), p298–306, 1993.
A. L. Maffett, “Topic for a Statistical Description of Radar Cross-section”, John Wiley Sons, New York, Chap.8 and 10, 1989.
A. Ishimaru, “Wave Propagation and Scattering in Random Media”, Academic Press, New York, Chap. 21, 1978.
G. T. Ruck et al., “RAdaar Cross-Section Handbook”, Plenum, New York, Chap. 8–9, 1970.
V. R. Weidner, “Laboratory intercomparation study of pressed polytetra flouroethylene power reflectance standards”, Appl. Opt., 24(14), p2225–2230, 1995.
T. W. Stuhlinger etal., “Bidirectional reflectance distribution function of gold-plated sandpaper”, Appl. Opt., 20(15), p2648–2655, 1981.
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Wu, Z., Liu, B. Electromagnetic similitude and inconsistency of laser scattering for scale model. Int J Infrared Milli Waves 16, 1249–1259 (1995). https://doi.org/10.1007/BF02068805
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DOI: https://doi.org/10.1007/BF02068805