Target detection algorithm for marine radar based on maximum likelihood estimate
Zou Xuping · Journal of Shanghai, Maritime University · 2012
In order to overcome the shortcoming of poor searching efficiency of the traditional marine radar target detection method in low visibility or serious sea clutter conditions,an algorithm,which is combined with the Automatic Identification System(AIS) information of known objectives,is proposed to determine the searching target threshold in sea clutter by the Maximum Likelihood Estimate(MLE) method,and it is applied to the target detection in maritime search and rescue.The AIS information of known target is taken as the sample set firstly in this algorithm.Then the threshold of the search target in sea clutter is estimated by the MLE method.Finally,the algorithm is programmed with QT and MATLAB on PC.The experimental results show that this algorithm can improve the target searching accuracy of radar and the efficiency of maritime search and rescue.