Fig. 4From: Holographic detection of AIS real-time signals based on sparse representationTime performances of three algorithms: the time performances of the original algorithm (represented by the blue dashed line), the processing time-improved algorithm (represented by the red dashed line), and the processing time and noise resistance-improved algorithm (represented by the green dashed line). The x-axis is the number of iterations and the y-axis denotes the time in millisecondsBack to article page