High-resolution FM stepped-frequency miniSAR system

Author

Weiming Tian ; Di Yao ; Tao Zeng

Author_Institution

Sch. of Inf. & Electron., Beijing Inst. of Technol., Beijing, China

fYear

2013

fDate

14-16 April 2013

Firstpage

1

Lastpage

4

Abstract

System design technique of high-resolution FM stepped-frequency (FM-SF) SAR system is investigated in this paper. High-resolution SAR system is implemented through narrow sub-band, multi stepped-frequency and high pulse repetition frequency technique. Double phased lock loops operate alternatively and generate stepped local oscillator. Non-linear phase error and starting sampling range error are estimated and compensated to improve the performance of pulse compression result. System performance is verified through airborne experiment and can satisfy high resolution imaging requirement.

Keywords

FM radar; image resolution; phase locked loops; phase locked oscillators; radar imaging; radar resolution; synthetic aperture radar; FM-SF SAR system; double-phased lock loops; high-pulse repetition frequency technique; high-resolution FM stepped-frequency miniSAR system; high-resolution imaging requirement; multistepped-frequency technique; narrow-subband technique; nonlinear phase error; pulse compression; sampling range error; stepped local oscillator; system design technique; Stepped-frequency SAR; error compensation; miniaturized SAR;

fLanguage

English

Publisher

iet

Conference_Titel

Radar Conference 2013, IET International

Conference_Location

Xi´an

Electronic_ISBN

978-1-84919-603-1

Type

conf

DOI

10.1049/cp.2013.0174

Filename

6624338