function fs=ftx(s);% ========================================================================% Chirp Scaling Algorithm - Fourier Transform in Azimuth% Maurice Rueegg% April 2005% ========================================================================% Copyright (c) Maurice Rueegg (2005)% Permission to use these scripts for SAR processing and related research% is granted. Please acknowledge the Remote Sensing Laboratories of the% University of Zurich, Switzerland.% The author disclaims any responsibility for or liability related to this% Software. Any questions, complaints or claims related to the Software% may be directed to mrueegg@geo.unizh.ch. % ========================================================================fs=fftshift(fft(fftshift(s)));% = end ==================================================================