An Adaptive Notch Filter for Narrow Band Interference Removal

被引:0
作者
Varshney, Neeraj [1 ]
Jain, R. C. [2 ]
机构
[1] Indian Inst Technol, Dept Elect Engn, Kanpur 208016, Uttar Pradesh, India
[2] Jaypee Inst Informat Tech, Dept Elect & Commun Engn, Noida 201307, India
来源
2013 NATIONAL CONFERENCE ON COMMUNICATIONS (NCC) | 2013年
关键词
Adaptive algorithm; Interference Suppression; IIR Filter; Narrow-band; Notch Filter;
D O I
暂无
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
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.
引用
收藏
页数:5
相关论文
共 6 条
[1]   Time-Frequency Excision for GNSS Applications [J].
Borio, Daniele ;
Camoriano, Laura ;
Savasta, Simone ;
Lo Presti, Letizia .
IEEE SYSTEMS JOURNAL, 2008, 2 (01) :27-37
[2]   Two-Pole and Multi-Pole Notch Filters: A Computationally Effective Solution for GNSS Interference Detection and Mitigation [J].
Borio, Daniele ;
Camoriano, Laura ;
Lo Presti, Letizia .
IEEE SYSTEMS JOURNAL, 2008, 2 (01) :38-47
[3]  
Calmettes V., 2001, P ION GPS 2001 SALT, P957
[4]   Suppression of narrow-band interference in DS-spread spectrum systems using adaptive IIR notch filter [J].
Choi, JW ;
Cho, NI .
SIGNAL PROCESSING, 2002, 82 (12) :2003-2013
[5]   INTERFERENCE REJECTION TECHNIQUES IN SPREAD SPECTRUM COMMUNICATIONS [J].
MILSTEIN, LB .
PROCEEDINGS OF THE IEEE, 1988, 76 (06) :657-671
[6]  
Wang X., 2004, WIRELESS COMMUNICATI, P385