A research on achieving the RFID anti-collision algorithm using Compressive Sensing

This paper studies the anti-collision algorithm in chipless radio frequency identification (RFID) technology, aiming to improve the accuracy and robustness of multi-tag identification. The chipless RFID tag encodes information through a resonator with a specific geometric structure, and its reading methods are divided into two types: time domain and frequency domain. The frequency domain read uses the resonant peak to distinguish the coded information, but when multiple tags are read at the same time, the signals will collide, causing recognition errors. To solve this problem, a collision-proof algorithm based on compressed sensing (CS) and Orthogonal Matching Pursuit (OMP) is proposed.