title: Analysis of Multi-Antenna GNSS Receiver Performance under Jamming Attacks.
abstract: Although antenna array-based Global Navigation Satellite System (GNSS) receivers can be used to mitigate both narrowband and wideband electronic interference sources, measurement distortions induced by array processing methods are not suitable for high precision applications. The measurement distortions have an adverse effect on the carrier phase ambiguity resolution, affecting the navigation solution. Depending on the array attitude information availability and calibration parameters, different spatial processing methods can be implemented although they distort carrier phase measurements in some cases. This paper provides a detailed investigation of the effect of different array processing techniques on array-based GNSS receiver measurements and navigation performance. The main novelty of the paper is to provide a thorough analysis of array-based GNSS receivers employing different beamforming techniques from tracking to navigation solution. Two beamforming techniques, namely Power Minimization (PM) and Minimum Power Distortionless Response (MPDR), are being investigated. In the tracking domain, the carrier Doppler, Phase Lock Indicator (PLI), and Carrier-to-Noise Ratio (C/N₀) are analyzed. Pseudorange and carrier phase measurement distortions and carrier phase position performance are also evaluated. Performance analyses results from simulated GNSS signals and field tests are provided.
authors.affiliation: PLAN Group, Department of Geomatics Engineering, Schulich School of Engineering, University of Calgary, 2500 University Drive N. W., Calgary, AB T2N 1N4, Canada. vaglen@ucalgary.ca.
authors.forename: Niranjana
authors.initials: N
authors.lastname: Vagle
authors.affiliation: PLAN Group, Department of Geomatics Engineering, Schulich School of Engineering, University of Calgary, 2500 University Drive N. W., Calgary, AB T2N 1N4, Canada. abrouman@ucalgary.ca.
authors.forename: Ali
authors.initials: A
authors.lastname: Broumandan
authors.affiliation: PLAN Group, Department of Geomatics Engineering, Schulich School of Engineering, University of Calgary, 2500 University Drive N. W., Calgary, AB T2N 1N4, Canada. gerard.lachapelle@ucalgary.ca.
authors.forename: Gérard
authors.initials: G
authors.lastname: Lachapelle
keywords: GNSS; array processing; carrier phase positioning; measurement distortions