摘要：This article introduces a low complexity mechanism for generating radiation pattern nulls and beams without requiring any additional hardware or signal processing blocks beyond those already inherent to GPS receiver systems. It describes the mathematical model that underlies this mechanism, including simulation results, as well as two applications: single-antenna jam mitigation and single-antenna spoof detection. Results of several field trials are presented based on a prototype implemented in off-the-shelf components and using a standard GPS receiver
