Design and demonstration of an interference suppressing microwave radiometer

Author

Hampson, Grant A. ; Ellingson, Steven W. ; Johnson, Joel T.

Author_Institution

Electro Sci. Lab., Ohio State Univ., Columbus, OH, USA

Volume

2

fYear

2004

fDate

6-13 March 2004

Firstpage

993

Abstract

Microwave radiometers operating outside the protected portions of the frequency spectrum can be adversely impacted by radiofrequency interference. We describe a new radiometer which coherently samples 100 MHz of spectrum and applies real-time RFI mitigation techniques using FPGAs. A field test of an interim version of this design in a radioastronomy observation corrupted by radar pulses is described. Experiments currently in progress to demonstrate the system in ground-based remote sensing are also detailed.

Keywords

astronomical instruments; interference suppression; microwave measurement; radioastronomy; radiofrequency interference; radiometers; FPGA; field test; frequency spectrum; ground based remote sensing; interference suppression; microwave radiometer; radar pulses; radioastronomy; radiofrequency interference; real time RFI mitigation; Bandwidth; Field programmable gate arrays; Frequency; Interference suppression; L-band; Microwave radiometry; Protection; Radiofrequency interference; Remote sensing; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Aerospace Conference, 2004. Proceedings. 2004 IEEE

ISSN

1095-323X

Print_ISBN

0-7803-8155-6

Type

conf

DOI

10.1109/AERO.2004.1367700

Filename

1367700