Digital back-end for RFI detection and mitigation in earth observation

Author

Forte, G.F. ; Querol, J. ; Park, Heejung ; Camps, A.

Author_Institution

Dept. del Teor. del Senyal i Comunicacions, Univ. Politec. de Catalunya & IEEC/UPC, Barcelona, Spain

fYear

2013

fDate

21-26 July 2013

Firstpage

1908

Lastpage

1911

Abstract

A powerful real time Radio-frequency interference (RFI) mitigation back-end system is presented in this work. The interfering signals are estimated by using the wavelet transform to utilize its effective denoising capability. The estimated RFI signals are then subtracted from the total received signal, and ultimately the RFI-mitigated signal is obtained. Here, the hardware implementation and the system tests are demonstrated, showing sinusoid, chirp, and PRN interference mitigation under different Interference to Noise Ratios (INRs).

Keywords

radiofrequency interference; signal denoising; wavelet transforms; Earth observation; RFI detection; RFI signals; RFI-mitigated signal; digital back-end; effective denoising capability; interference-to-noise ratios; radio-frequency interference; real time RFI mitigation back-end system; total received signal; wavelet transform; Field programmable gate arrays; Geoscience; Hardware; Microwave radiometry; Radiofrequency interference; Remote sensing; Denoising; Mitigation; RFI; Wavelet;

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.2013.6723177

Filename

6723177