Title :
An adaptive notch filter for narrow band interference removal
Author :
Varshney, Neeraj ; Jain, R.C.
Author_Institution :
Department of Electrical Engineering, Indian Institute of Technology, Kanpur 208016, India
Abstract :
A modification on an existing algorithm to dynamically adapt to interfering signal frequency and its magnitude is given. The algorithm first detects the presence of the interfering signal in real time and if present, it adjusts parameters to maximize the signal to noise ratio at the output. The AWGN and interfering signal power is taken in a wide dynamic range - up to 20 dB and 80 dB respectively. The proposed IIR filter detects and almost perfectly removes the interference.
Keywords :
Adaptive filters; Filtering algorithms; Finite impulse response filters; IIR filters; Interference; Power harmonic filters; Signal to noise ratio; Adaptive algorithm; IIR Filter; Interference Suppression; Narrow-band; Notch Filter;
Conference_Titel :
Communications (NCC), 2013 National Conference on
Conference_Location :
New Delhi, India
Print_ISBN :
978-1-4673-5950-4
Electronic_ISBN :
978-1-4673-5951-1
DOI :
10.1109/NCC.2013.6487917
