Demonstration of multi-tag detection of chipless RFID
Detecting multiple chipless tags that are closely arranged is a challenging process. Previous studies regarding this topic have attempted three frameworks: signal processing, comparisons with database, and Space-division multiple access (SDMA). In this video, we present a new detection technique that integrates signal processing and SDMA. This technique is derived from Independent Component Analysis (ICA), separating blind sources without setting constraints to time difference of arrivals or spectrum arrangement.