Near-space slow-speed SAR large scene imaging algorithm based on two-step processing approach and stolt interpolation

Author

Qianghui Zhang ; Wenchao Li ; Zhongyu Li ; Yulin Huang ; Haiguang Yang ; Jianyu Yang ; Junjie Wu

Author_Institution

Sch. of Electr. Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu, China

fYear

2014

fDate

13-18 July 2014

Firstpage

494

Lastpage

496

Abstract

Near-space Synthetic Aperture Radar (SAR) possesses useful features such as High-Resolution Wide-Swath (HRWS) and high revisiting frequency etc., which are difficult for the conventional SAR, e.g. spaceborne and airborne SAR, to simultaneously provide. Slow-speed SAR is introduced to solve the contradiction between high resolution and wide swath of Near-space SAR and a frequency domain algorithm based on Two-Step Processing Approach (TSPA) and Stolt interpolation is proposed. Simulations are provided to demonstrate the validity of the proposed algorithm.

Keywords

airborne radar; geophysical image processing; geophysical techniques; image resolution; interpolation; radar imaging; spaceborne radar; synthetic aperture radar; SAR resolution; Stolt interpolation; airborne SAR; high revisiting frequency; high-resolution wide-swath; near-space slow-speed SAR large scene imaging algorithm; spaceborne SAR; two-step processing approach; Azimuth; Doppler effect; Geometry; Image resolution; Imaging; Mathematical model; Synthetic aperture radar; HRWS; Highresolution wide-swath; SAR; Synthetic aperture radar; near-space; slow-speed;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium (IGARSS), 2014 IEEE International

Conference_Location

Quebec City, QC

Type

conf

DOI

10.1109/IGARSS.2014.6946467

Filename

6946467