Application of the momentary Fourier transform to SIFFT SAR processing

Author

Albrecht, Sandor ; Cumming, Ian

Author_Institution

Dept. of Electr. & Comput. Eng., British Columbia Univ., Vancouver, BC, Canada

fYear

1998

Firstpage

517

Lastpage

520

Abstract

This paper considers a case of radar processing which requires highly-overlapped inverse DFTs. This case arises in burst-mode synthetic aperture radar (SAR), where the time-varying spectral properties of the received data requires that IDFTs be located at specific points in the spectral domain. The inverse moving Fourier transform is introduced, and it is shown how it can be more efficient than the FFT in this radar application

Keywords

discrete Fourier transforms; inverse problems; radar applications; radar imaging; synthetic aperture radar; SIFFT SAR processing; burst-mode synthetic aperture radar; highly-overlapped inverse DFT; image quality; inverse moving Fourier transform; momentary Fourier transform; radar application; radar imaging; radar processing; spectral domain; time-varying spectral properties; Application software; Bandwidth; Convolution; Discrete Fourier transforms; Fourier transforms; Frequency; Image segmentation; Matched filters; Radar applications; Synthetic aperture radar;

fLanguage

English

Publisher

ieee

Conference_Titel

Time-Frequency and Time-Scale Analysis, 1998. Proceedings of the IEEE-SP International Symposium on

Conference_Location

Pittsburgh, PA

Print_ISBN

0-7803-5073-1

Type

conf

DOI

10.1109/TFSA.1998.721475

Filename

721475