Analysis and simulation of interference suppression for space-time adaptive processing

Adaptive antenna array, which mitigates interference signals by the spatial adaptive processing (SAP), has been widely used for interference suppression in GNSS receiver. Moreover, the space-time adaptive processing (STAP) is applied to improve the performance of anti-jamming of the antenna array. This paper analyzes the working principles of SAP and STAP, and then shows the anti-jamming performance of SAP and STAP by simulation. It is proved that STAP has a better performance in the case of multiple jamming signals. Finally, this paper validates that the signals processed by STAP still meet the requirement of the acquisition and tracking of receivers by comparing the correlation peak.