A New GNSS Interference Detection Method Based on Rearranged Wavelet-Hough Transform

Since radio frequency interference (RFI) seriously degrades the performance of a global navigation satellite system (GNSS) receiver, interference detection becomes very important for GNSS receivers. In this paper, a novel rearranged wavelet-Hough transform (RWHT) method is proposed in GNSS interfere...

Full description

Saved in:
Bibliographic Details
Published in:Sensors (Basel, Switzerland) Switzerland), 2021-03, Vol.21 (5), p.1714
Main Authors: Sun, Kewen, Zhang, Tengteng
Format: Article
Language:English
Subjects:
Continuous radiation
global navigation satellite system (GNSS)
Hough transformation
interference detection
Localization
Methods
Noise
Radio frequency interference
Random variables
rearranged wavelet–Hough transform (RWHT)
rearrangement
Satellites
Spread spectrum
wavelet transform
Wavelet transforms
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Since radio frequency interference (RFI) seriously degrades the performance of a global navigation satellite system (GNSS) receiver, interference detection becomes very important for GNSS receivers. In this paper, a novel rearranged wavelet-Hough transform (RWHT) method is proposed in GNSS interference detection, which is obtained by the combination of rearranged wavelet transform and Hough transform (HT). The proposed RWHT method is tested for detecting sweep interference and continuous wave (CW) interference, the major types of GNSS interfering signals generated by a GNSS jammer in a controlled test bench experiment. The performance of the proposed RWHT method is compared with the conventional techniques such as Wigner-Ville distribution (WVD) and Wigner-Hough transform (WHT). The analysis results show that the proposed RWHT method reduces the influence of cross-item problem and improves the energy aggregation property in GNSS interference detection. When compared with the WHT approach, this proposed RWHT method presents about 90.3% and 30.8% performance improvement in the initial frequency and chirp rate estimation of the GNSS sweep interfering signal, respectively. These results can be further considered to be the proof of the validity and effectiveness of the developed GNSS interference detection method using RWHT.
ISSN:1424-8220
1424-8220
DOI:10.3390/s21051714