SAR radiometric calibration based on vectors of DCT

Author

Wang, Yiding ; Li, Yuanshu

Author_Institution

Coll. of Inf. Eng., North China Univ. of Technol., Beijing, China

fYear

2011

fDate

26-30 Sept. 2011

Firstpage

1

Lastpage

4

Abstract

As we all know, radar radiometric calibration is a very important research in Synthetic Aperture Radar (SAR). The accuracy of radiometric calibration is always the focus of all the researches. In this paper, the authors make a thorough study on radiometric calibration, and put forward a new model of radiometric calibration. Based on the new model, a new method of vectors of Discrete Cosine Transform (DCT) is proposed. The new method makes an isolated value into a vector which is related to peaks of a radar picture. A lot of contrast experiments have also been done. The result is that with the help of this new method, radiometric precision can be improved a lot.

Keywords

discrete cosine transforms; radiometry; synthetic aperture radar; DCT; SAR radiometric calibration; discrete cosine transform; radar picture; radar radiometric calibration; radiometric precision; synthetic aperture radar; vector; Calibration; Clutter; Discrete cosine transforms; Microwave radiometry; Radar; Vectors; Discrete Cosine Transform (DCT); Synthetic Aperture Radar (SAR); radar transponder; radiometric calibration;

fLanguage

English

Publisher

ieee

Conference_Titel

Synthetic Aperture Radar (APSAR), 2011 3rd International Asia-Pacific Conference on

Conference_Location

Seoul

Print_ISBN

978-1-4577-1351-4

Type

conf

Filename

6086970