关键词: 合成孔径雷达, 卷积神经网络, 模糊支持向量机(FSVM), 代价函数, 分类函数

Abstract: With the development of space technology,the SAR load detection system in our country is showing the development trend of variousness and multi resolution.Since the traditional detection identification methods are difficult to satisfy the multiresolution and various characteristics of SAR image data,it's necessary to seek a different method to extract effective features from the multiresolution image data.For the rapidly development of intelligence,our scheme bases on the characteristics of SAR image proposes the convolution of the improved neural network method and utilizes ELU as an activation function to establish the deep learning model,which combined with the ELU and quadratic cost function.At the same time,based on the training sample, we establish the sample characteristics and centric distance functions,and then use the fuzzy support vector machine to classify the extracted characteristics.The experimental results show that the proposed method can improve the noise resistance of SAR image for the ship detection, and the detection rate can reach up to 98.6%.

Key words: synthetic aperture radar, the convolution neural network, fuzzy support vector machine, cost function, classification function