Title :
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
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;
Conference_Titel :
Geoscience and Remote Sensing Symposium (IGARSS), 2013 IEEE International
Conference_Location :
Melbourne, VIC
Print_ISBN :
978-1-4799-1114-1
DOI :
10.1109/IGARSS.2013.6723177
