A Kirchhoff Integral Approach to Radar Propagation Modelling and its Application to the Estimation of Clutter

Coleman, Christopher John

doi:10.1109/radar.2007.374399

Cited by 1 publication

(2 citation statements)

References 8 publications

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“…An estimate of the grazing angle is then found by calculating the direction of the wavefront at the ground. The grazing angle α can be approximated by α ≈ · E d / jβE d where is the unit normal at the surface [ Coleman and Alexopoulos , 2007]. Once we have an estimate for α , we can calculate the reflection coefficients using the standard formulas for plane wave reflection.…”

Section: Effect Of a Finite Boundarymentioning

confidence: 99%

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An FFT-based Kirchhoff integral technique for the simulation of radio waves in complex environments

Coleman

2010

Radio Sci.

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[1] Kirchhoff integral (KI) techniques provide an effective means of simulating radio wave propagation in nonhomogeneous media with complex boundaries. In particular, these techniques can handle quite general boundary topography. Due to the translation-dependent nature of their kernels, however, they cannot take advantage of the fast Fourier transform (FFT) techniques that give the parabolic equation methods their speed. In this paper it is shown that, by means of approximate kernels, the KI technique can be recast in a form where FFT techniques can be applied. Furthermore, through the use of effective reflection coefficients, the technique can handle quite general boundary topography without the need for boundary flattening transformations. The technique is demonstrated through the simulation of several complex 2-D and 3-D radio wave propagation scenarios.Citation: Coleman, C. J. (2010), An FFT-based Kirchhoff integral technique for the simulation of radio waves in complex environments, Radio Sci., 45, RS2002,

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Section: Effect Of a Finite Boundarymentioning

confidence: 99%

“…Furthermore, the method is not restricted to narrow propagation angles and exhibits a fairly natural mechanism for treating boundaries. The approach has been used to simulate propagation through a variety of scenarios including evaporative ducts over sea [ Coleman and Alexopoulos , 2007] and fires on land [ Coleman and Boan , 2007].…”

Section: Introductionmentioning

confidence: 99%

An FFT-based Kirchhoff integral technique for the simulation of radio waves in complex environments

Coleman

2010

Radio Sci.

View full text Add to dashboard Cite

show abstract

A Kirchhoff Integral Approach to Radar Propagation Modelling and its Application to the Estimation of Clutter

Cited by 1 publication

References 8 publications

An FFT-based Kirchhoff integral technique for the simulation of radio waves in complex environments

An FFT-based Kirchhoff integral technique for the simulation of radio waves in complex environments

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