Channel scintillations of array global navigation satellite system receiver under distributed intermittent interferences

Abstract

Abstract Non‐stationary interferences are parts of the global navigation satellite system (GNSS) threats; this paper focusses on the impact of intermittent interferences on the baseband processing of the array GNSS receiver. We call the jitters of channel response caused by distributed intermittent interferences as channel scintillations. The inevitability of the channel scintillations under intermittent interferences was illustrated first. Then, the characteristics of channel scintillations were analysed through theory analysis and simulations. Finally, the impact of channel scintillations on the receiver baseband processing was assessed. The results show that though the intermittent interferences power can be suppressed completely by the anti‐jamming filter, the phase lock loop may lose lock due to channel scintillations.

Keywords

• anti‐jamming
• baseband processing
• GNSS receiver
• interference