Neighbourhood Feature Space Discriminant Analysis for High Range Resolution Radar Target Recognition

Author(s):  
Xuelian Yu ◽  
Xuechao Qu ◽  
Yuguo Wang ◽  
Huaqiong Li ◽  
Xuegang Wang
2014 ◽  
Vol 701-702 ◽  
pp. 433-436
Author(s):  
Pei Pei Duan ◽  
Hui Li ◽  
Qi Li

The high range resolution profile samples are numerous and sparse. But less radar target recognition algorithms based on high range resolution profiles (HRRP) employed the sparseness of HRRP samples. A new radar target recognition algorithm using a fast sparse decomposition method is presented here. This algorithm was to be carried out in three major steps. First, the Gabor redundant dictionary was partitioned according to its atom characteristics to decrease the atoms storage. Then, the matching pursuit algorithm was improved by the genetic algorithm and the fast cross-correlations calculation to accelerate training samples decomposition and generate the taxonomic dictionaries. Finally, the reconstruction errors of testing samples were used to recognize different radar targets. The simulations show that this method can resist noise disturbs and its recognition rate is high.


2020 ◽  
Vol 2020 ◽  
pp. 1-11 ◽  
Author(s):  
Wei Wang ◽  
Chengwen Zhang ◽  
Jinge Tian ◽  
Xin Wang ◽  
Jianping Ou ◽  
...  

Aiming at high-resolution radar target recognition, new convolutional neural networks, namely, Inception-based VGG (IVGG) networks, are proposed to classify and recognize different targets in high range resolution profile (HRRP) and synthetic aperture radar (SAR) signals. The IVGG networks have been improved in two aspects. One is to adjust the connection mode of the full connection layer. The other is to introduce the Inception module into the visual geometry group (VGG) network to make the network structure more suik / for radar target recognition. After the Inception module, we also add a point convolutional layer to strengthen the nonlinearity of the network. Compared with the VGG network, IVGG networks are simpler and have fewer parameters. The experiments are compared with GoogLeNet, ResNet18, DenseNet121, and VGG on 4 datasets. The experimental results show that the IVGG networks have better accuracies than the existing convolutional neural networks.


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