## Applied diffraction theory |

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### Contents

CHAPTER | 1 |

Elementary Scalar Wave Theory Acoustic Waves | 8 |

Plane Wave Excited Fields | 14 |

Copyright | |

53 other sections not shown

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A-polynomial analysis anomalous propagation Appendix applying asymptotic atmosphere becomes Bessel functions boundary conditions Chapter coefficient cone consider constant continuous function contour integral convergent coordinates curl cylinder defined diffracting region diffraction problem dipole distance earth eigenfunctions eigenvalue equivalent error exists expression finite focal focus form 17 formula Fourier-Bessel series Ft(x function 77 given gives Hence high level inversions homogeneous equation infinity integral equation integrand linearly independent meters nonhomogeneous equation Note obtain optic axis orthogonality plane plate function polynomial positive possible radio waves radius reflection refractive index region resonator result satisfy scalar wave scatter field Section shell simple integral form small compared solution sphere spherical spherical polar coordinates sufficient condition surface integral surface inversions symmetric tanh Theorem theory tion tropospheric undisturbed field unity valid vector W.K.B. approximation wave function wave propagation wavelengths writing