Performance of Digital Drone Signage System Based on DUET

In this letter, we study a scenario based on degenerate unmixing estimation technique (DUET) that separates original signals from mixture of FHSS with two antennas. We have shown the assumptions for separating mixed in DUET can be applied to drone digital signage recognition and proposed DUET-based separation scheme (DBSS) classify by extracting delay attenuation components signal through likelihood function short-term Fourier transform (STFT). addition, propose an iterative algorithm conventional scheme. Numerical results showed is more separation-efficient compared baseline schemes. DBSS separate all within about 0.56 seconds when there are fewer than nine signals.