Radial Basis Convoluted Graph Neural Network Based Area Efficient 1024-Point Pipelined Radix4 FFT Processer for ECG Heartbeat Categorization. - V. Sathya; M. Shakunthala; V. J. Chakravarthy; K. Radhika; Gali Nageswara Rao; Mahendra T. Jagtap; E. Ramya; Supriya Gupta Bani (Circuits Syst. Signal Process., 2026)