Radar Cross Section
Radar cross section (RCS) is a comparison of two radar signal strengths. One is the strength of the radar beam sweeping over a target, the other is the strength of the reflected echo sensed by the receiver. This book shows how the RCS gauge can be predicted for theoretical objects and how it can be measured for real targets. Predicting RCS is not easy, even for simple objects like spheres or cylinders, but this book explains the two exact forms of theory so well that even a novice will understand enough to make close predictions. Weapons systems developers are keenly interested in reducing the RCS of their platforms. The two most practical ways to reduce RCS are shaping and absorption. This book explains both in great detail, especially in the design, evaluation, and selection of radar absorbers. There is also great detail on the design and employment of indoor and outdoor test ranges for scale models or for full-scale targets (such as aircraft). In essence, this book covers everything you need to know about RCS, from what it is, how to predict and measure, and how to test targets (indoors and out), and how to beat it.
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Physics and Overview of Electromagnetic Scattering
Radar Absorbing Materials
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amplitude antenna mode Antennas and Propagation aspect angle azimuth backscatter band bandwidth bistatic body Chapter circuit coherent complex components computed corner reflector creeping wave cross range curved surfaces cylinder dBsm density detection dielectric diffraction diffraction coefficients echo edge diffraction effect electric field electromagnetic energy equation example farfield flat plate frequency function geometry ground plane illuminated impedance incident field incident wave integral layer lobe magnetic field material matrix Maxwell's equations normal peak perpendicular phase physical optics plane wave polarization pulse Radar absorbing materials radar cross section radiation RCS measurements RCSR receiver reduce reflection coefficient reflector region rotation Salisbury screen sample scattered field scattering centers scattering mechanisms shaping sheet shown in Figure sidelobe signal solution sphere structure surface normal surface wave taper target techniques test range thickness threat sector transmission line transmitted typically values vector waveguide wavelength X band