PATTERN RECOGNITION FOR RF NEURAL SIGNAL PROCESSING USING KNN DISCRIMINANT CLASSIFICATION - Nazri, Nur Irsalina Huda; Rosli, Muhammad Rasyid; Isa, Roshakimah Mohd; Hanis, M. N. Ezzuddean Miswan (BAREKENG: Jurnal Ilmu Matematika dan Terapan, 2026)