HY-2A radar altimeter design and in flight preliminary results

Author

Ke Xu ; Jingshan Jiang ; Heguang Liu

Author_Institution

Key Lab. of Microwave Remote Sensing, Center for Space Sci. & Appl. Res., Beijing, China

fYear

2013

fDate

21-26 July 2013

Firstpage

1680

Lastpage

1683

Abstract

HY-2A, the China´s first satellite for oceanic dynamic environment measurement, was launched on August 16th, 2011. As one of main payloads of HY-2A, HY-2A radar altimeter (RA/HY-2A) has been operating stably since the launch, and obtained a lot of scientific data. RA/HY-2A is a dual-frequency (Ku and C band) radar altimeter with a conventional pulse-limited method, and some new techniques such as model compatible tracker are adopted in it. The accuracy of RA/HY-2A is better than 2cm (@4m SWH) or 4cm (@20m SWH), and the inversion results show that RA/HY-2A meets the design requirements. In this paper, the design and in flight results of RA/HY-2A are discussed.

Keywords

oceanographic techniques; radar altimetry; remote sensing by radar; C band; HY-2A radar altimeter design; Ku band; dual-frequency radar altimeter; oceanic dynamic environment measurement; pulse-limited method; Accuracy; Maximum likelihood estimation; Radar tracking; Satellites; Sea measurements; Spaceborne radar; HY-2A satellite; MCT; operation in flight; operation mode; radar altimeter;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium (IGARSS), 2013 IEEE International

Conference_Location

Melbourne, VIC

ISSN

2153-6996

Print_ISBN

978-1-4799-1114-1

Type

conf

DOI

10.1109/IGARSS.2013.6723117

Filename

6723117