Globally fused hierarchical transformer for nonuniform frequency diverse arrays

Han Zhang, Shengheng Liu, Hao Chi Zhang, Le Peng Zhang, Tong Chen

Abstract: Highlights•A low-cost nonuniform FDA radar system with a single-channel receiver is designed for high-resolution target localization.•A globally fused hierarchical transformer is proposed to compensates for hardware imperfections while maintaining efficiency.•Numerical studies and real-data experiments are conducted to validate the algorithm performance.