Browse Prior Art Database

Isolating Components of Radar Echoes

IP.com Disclosure Number: IPCOM000037386D
Original Publication Date: 1989-Dec-01
Included in the Prior Art Database: 2005-Jan-29
Document File: 2 page(s) / 20K

Publishing Venue

IBM

Related People

Feig, E: AUTHOR

Abstract

A technique is described whereby an algorithm obtains that portion of an echo g(t) that is responsible for a particular peak in the cross- ambiguity surface of itself and a reference signal f(t), as used in Range-Doppler radar applications. Consider the windowed function described in the preceding article K(x,y) = Af,g(x,y)W(x,y) where the window W(x,y) isolates a peak of interest in the ambiguity function Af,g(x,y). It is desirable to obtain fixed f(t) min { K-A(fRg*) 2: g e2L (R)} This algorithm reduces to determine where and K~1 denotes the Fourier transform of K in the first variable. Because f is fixed by Cauchy-Schwartz inequality, the maximum is achieved by gopt = K~f.

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Isolating Components of Radar Echoes

A technique is described whereby an algorithm obtains that portion of an echo g(t) that is responsible for a particular peak in the cross- ambiguity surface of itself and a reference signal f(t), as used in Range-Doppler radar applications. Consider the windowed function described in the preceding article K(x,y) =

Af,g(x,y)W(x,y) where the window W(x,y) isolates a peak of interest in the ambiguity function Af,g(x,y). It is desirable to obtain fixed f(t) min { K-A(fRg*) 2: g e2L (R)} This algorithm reduces to determine where and K~1 denotes the Fourier transform of K in the first variable. Because f is fixed by Cauchy-Schwartz inequality, the maximum is achieved by gopt = K~f.

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