Polar Format imaging algorithm based on range scaling for spotlight SAR

Chao Li, Chang Liu, Xin Gao

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


There are two main problems through the implementation of Polar Format Algorithm (PFA). First, the error of Residual Video Phase (RVP) arises after the dechirp operation. Second, the interpolation has influence on the computation efficiency and imaging precision. This paper proposes a novel algorithm where range resampling is based on the principle of Scaling and Chirp-Z transform is adopted on azimuth dimension. The presented approach only consists in FFTs and multiplications, which effectively helps to decrease the computational burden and improve the imaging quality. Besides, the presented algorithm is much simpler than the existing range CZT approach. Point target simulation validates effectiveness of the presented algorithm.
Original languageEnglish (US)
Pages (from-to)1434-1439
Number of pages6
JournalDianzi Yu Xinxi Xuebao/Journal of Electronics and Information Technology
Issue number6
StatePublished - Jun 1 2011
Externally publishedYes

Bibliographical note

Generated from Scopus record by KAUST IRTS on 2023-09-21

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


Dive into the research topics of 'Polar Format imaging algorithm based on range scaling for spotlight SAR'. Together they form a unique fingerprint.

Cite this