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Gradient

Known as: Grad, Gradient Operator, Gradient of a scalar 
In mathematics, the gradient is a generalization of the usual concept of derivative to functions of several variables. If f(x1, ..., xn) is a… 
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Papers overview

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Highly Cited
2011
Highly Cited
2011
Today's airborne SAR sensors provide geometric resolution in the order well below half a meter. Many features of urban objects… 
Highly Cited
2008
Highly Cited
2008
Paralleling the rapid development of widely distributed information and computing technologies has been an accelerated demand by… 
Highly Cited
2003
Highly Cited
2003
An extensive experimental study of optical aberrations due to propagation through fully-developed turbulent boundary layers at… 
Highly Cited
1997
Highly Cited
1997
A new approach based on the constant modulus (CM) criterion is proposed to separate instantaneous linear mixtures of signals… 
Highly Cited
1980
Highly Cited
1980
kbstract In this paper, we look for periodic solutions, with prescribed energy h C R, of Hamilton's equations: (H) a H (x, p), p…