By Oleg I. Sukharevsky
Electromagnetic Wave Scattering through Aerial and floor Radar Objects offers the speculation, unique calculation equipment, and computational result of the scattering features of other aerial and floor radar gadgets. This must-have publication offers crucial history for computing electromagnetic wave scattering within the presence of other different types of irregularities, in addition to
- Summarizes primary electromagnetic statements equivalent to the Lorentz reciprocity theorem and the picture principle
- Contains crucial box representations allowing the research of scattering from numerous layered structures
- Describes scattering computation suggestions for items with floor fractures and radar-absorbent coatings
- Covers removing of "terminator discontinuities" showing within the approach to actual optics as a rule bistatic cases
- Includes radar cross-section (RCS) data and high-range solution profiles of various aircrafts, cruise missiles, and tanks
Complete with radar backscattering diagrams, echo sign amplitude chance distributions, and different useful reference material, Electromagnetic Wave Scattering through Aerial and floor Radar items is perfect for scientists, engineers, and researchers of electromagnetic wave scattering, computational electrodynamics, and radar detection and popularity algorithms.
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Additional info for Electromagnetic Wave Scattering by Aerial and Ground Radar Objects
We need to make some remarks regarding the latter statement. First, the same statement holds true for the fields excited by magnetic dipoles too. Second, using the superposition principle and integral representation of the following kind: J (x) = ∫ J ( x ) δ( x − x ) d V 0 0 x0 , Ω1 one can extend the image principle of the form presented above (and used in [15–17]) onto the fields excited by arbitrary extraneous currents. 2 On the Influence of Underlying Surface onto the Scattering Properties of a Target Let the plane Σ (we assume it perfectly conducting) to be bounding a half-space containing the scattering object outlined by the boundary surface S (perfect conductor or perfect magnetic).
In the asymptotic representation obtained below, we also singled out the summands responsible for appearance of spurious peaks that were expressed by contour integral. The major members of this integral asymptotic have been obtained, which are needed to be eliminated from the impulse response representation in order to smooth it out. The latter allowed us to increase the computation accuracy over time period up to arrival moment of creeping wave traversing the shadow zone. I. Kontorovich formula obtained above, which gave us the scattering contribution from edge contour in two-dimensional method of stationary phase in case of nonflat region and nonsingular stationary phase points of any type.
Let us assume that contour L is defined parametrically: x = x (t ). Then, contour points of stationary phase can be found from equation l 0 ⋅ x ′ (t ) = 0, and let these points be Mi (i = 1, …, N). 105 can be computed asymptotically: N ( H scat (r r 0 ))cont . L ~ ∑ m =1 2 d τ k0 l 0 ⋅ d l Mm ( A) Mm (l 0 τ n ) M m l0 2 − ( l 0 ⋅ n M m )2 jπ dτ ⋅ exp jk0 a + r + l 0 ⋅ x Mm + sgn l 0 ⋅ . 106) 32 Electromagnetic Wave Scattering by Aerial and Ground Radar Objects It is taken into account here that ( Φ ′′(l ))M m dτ = l0 ⋅ , d l Mm where x ′ (t ) , x ′ (t ) τ (t ) = dτ dt τ ′ (t ) .