Title :
Two-dimensional RCS image of target using radar turntable data
Author :
Deshpande, M.D. ; Staton, Leo ; Naftel, Pat B.
Author_Institution :
Vigyan, Inc., Hampton, VA, USA
Abstract :
A system for obtaining two-dimensional images of an object using multifrequency microwave holography is presented. The phase variation of the reflected signal from an object as a function of frequency of illumination and angle of incidence is used to achieve resolution in range and cross-range. The processing of the reflected signal is accomplished by a two-dimensional discrete Fourier transform implemented by fast Fourier transform (FFT) algorithms. Examples of images obtained by processing simulated and experimental data are presented. The processing technique for obtaining focused three-dimensional images of an object is also discussed
Keywords :
fast Fourier transforms; microwave holography; picture processing; radar cross-sections; radar theory; RCS image; cross-range resolution; discrete Fourier transform; focused three-dimensional images; illumination frequency; image processing; incidence angle; multifrequency microwave holography; phase variation; radar cross sections; radar turntable data; reflected signal; two-dimensional images; Discrete Fourier transforms; Fast Fourier transforms; Focusing; Frequency; Holography; Lighting; Radar cross section; Radar imaging; Signal processing; Signal resolution;
Conference_Titel :
Southeastcon '91., IEEE Proceedings of
Conference_Location :
Williamsburg, VA
Print_ISBN :
0-7803-0033-5
DOI :
10.1109/SECON.1991.147869
