Anti-Jamming GNSS Antenna Array Receiver with Reduced Phase Distortions Using a Robust Phase Compensation Technique

Antenna arrays with adaptive filtering can protect the integrity and functionality of global navigation satellite system (GNSS) receivers against interference. However, a major problem with existing adaptive array processing algorithms is that they cause phase distortions and introduce bias errors i...

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Bibliographic Details
Published inRemote sensing (Basel, Switzerland) Vol. 15; no. 17; p. 4344
Main Authors Li, Song, Wang, Feixue, Tang, Xiaomei, Ni, Shaojie, Lin, Honglei
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.09.2023
Subjects
Accuracy
Adaptive algorithms
adaptive array processing
Adaptive filters
Algorithms
antenna array
Antenna arrays
antennae
Antennas
anti-jamming
Bias
Comparative analysis
Compensation
Control
filters
Global navigation satellite system
global positioning systems
GNSS receiver
Jamming
Jamming of communications
Kalman filters
Navigation computer (Aeronautical instrument)
Phase distortion
Phase measurement
Receivers
Receivers & amplifiers
Remote sensing
Robustness
Safety and security measures
Signal processing
Technology application
China
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Summary:Antenna arrays with adaptive filtering can protect the integrity and functionality of global navigation satellite system (GNSS) receivers against interference. However, a major problem with existing adaptive array processing algorithms is that they cause phase distortions and introduce bias errors into the carrier phase measurement, limiting high-precision applications. In this paper, a robust phase compensation technique is proposed to reduce the phase distortion. First, a phase bias detection method is developed to trigger the phase compensation technique. Then, the phase bias is estimated using a robust estimation method and compensated for in the GNSS receiver. The proposed technique operates in real time and causes no processing delay, while requiring only a minor modification to existing GNSS receivers. This technique is applied to the power inversion adaptive antenna, and can also be extended to a wide variety of adaptive antennas. The simulation experiments verify the applicability of the proposed technique and also confirm its superiority over existing techniques.
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ISSN:2072-4292
2072-4292
DOI:10.3390/rs15174344