function fs=ftx(s);
% ========================================================================
% Extended Chirp Scaling Algorithm
% Maurice Rueegg
% April 2005, May 2009
% ========================================================================
% Copyright (c) Maurice Rueegg (2005,2009)
% Permission to use these scripts for SAR processing and related research
% is granted. Please acknowledge the author.
% The author disclaims any responsibility for or liability related to this
% Software. Any questions or claims related to the Software can be
% directed to info@znuerb.com 
% ========================================================================

fs=fftshift(fft(fftshift(s)));

% = end ==================================================================
