Comparing the Performances between Adaptive Notch Filter Direct and Lattice Forms Structures for Mitigation Jamming Signals - Communications and Network

CN > Vol.14 No.3, August 2022

Volume 14, Issue 3 (August 2022)

ISSN Print: 1949-2421 ISSN Online: 1947-3826

Google-based Impact Factor: 0.63 Citations

Comparing the Performances between Adaptive Notch Filter Direct and Lattice Forms Structures for Mitigation Jamming Signals ()

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DOI: 10.4236/cn.2022.143007 199 Downloads 1,127 Views

Author(s)

Abdelrahman El Gebali, René Jr Landry

Affiliation(s)

Lassena Laboratory, Department of Electrical Engineering, École de Technologie Supérieure (ÉTS), Montreal, Canada.

ABSTRACT

A jamming signal such as single and multiple Continuous-Wave (CW and MCW) interferences have been shown to have severe effects on the quality of the received signal in wireless communication. This paper presents an approach of a low-complexity algorithm that compares the performances of using Adaptive Notch Filter (ANF) direct and lattice forms structures based on second-order Infinite Impulse Response (IIR) Notch Filter (NF) for the detection and mitigation of CW and MCW interferences in QPSK communication systems. The approach method consists of two ANFs, adaptive IIR NF

and adaptive IIR NF

. The present algorithm can estimate and mitigate each CWI and computer their power in Time-Domain (TD). In results for performance comparison, the lattice IIR NF structure outperforms the direct IIR NF structure for detection and removal jamming and has a better Bit Error Ratio (BER). Furthermore, compared with the case of full suppression (

), both cases (direct and lattice form) work better for low and high-power jammers. Also, compared to the case without an IIR NF, the presented algorithm can detect and mitigate, track hopping frequency interference, and improve BER performance.

KEYWORDS

CWI, MCWI, ANF, BER, IIR, QPSK, Direct and Lattice Form, and JSR

Share and Cite:

Gebali, A. and Landry, R. (2022) Comparing the Performances between Adaptive Notch Filter Direct and Lattice Forms Structures for Mitigation Jamming Signals. Communications and Network, 14, 91-107. doi: 10.4236/cn.2022.143007.

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