Infrared sensor and radar are the most common sensors in target tracking system,their measurements are asynchronous.Based on parallel multi-sensor joint probabilistic data association algorithm,a multi-sensor multi-target tracking algorithm under clutter is proposed.Firstly asynchronous fusion and synchronous fusion are carried out with measurements from infrared sensor and radar,then the fused measurements and IMM algorithm are applied to accomplish multiple maneuvering targets tracking.Using this algorith...