Hangzhou Dianzi University

Hangzhou Amphenol Phoenix Telecom Parts Co., Ltd.

Jingyu Zhao

Zhiqun Cheng

Yinliang Yan

Dou Pei

Jiangong Ni

Zhigang Zhou

Xiaona Xue

Minjie Gao

Yejiang Lin

An unmanned aerial vehicle (UAV) identification method based on blind source separation and deep learning is disclosed, in the method, firstly, the one-dimensional radar cross section millimeter wave data set of the UAV is acquired, and the mixed signal is obtained by mixing, and the improved FastICA algorithm is used to separate it. Secondly, the separated signal is converted into a two-dimensional image by data transformation, and the two-dimensional image is augmented, the obtained data set is divided into training set, validation set and test set. Thirdly, establish a UAV classification model based on Improved ResNet18 and train this model on the training set to achieve UAV classification. In the present invention, the training time of the network is not greatly increased while the network identification accuracy is improved, so that it can well complete the UAV type identification, and the design is more reasonable and effective.

Unmanned aerial vehicle identification method based on blind source separation and deep learning

A hinge and a mobile terminal having an inward-foldable flexible screen. The hinge includes a left rotating support, a right rotating support, a left middle rotating supporting component, and a right middle rotating supporting component; the left rotating support and the right rotating support are respectively provided with supporting parts for the left middle rotating supporting component and the right middle rotating supporting component during being unfolded; the left middle rotating supporting component and the right middle rotating supporting component are separately connected to an elastic component; and when the hinge is folded, the elastic component drives the left middle rotating supporting component and the right middle rotating supporting component to downwardly rotate so as to rotate into a middle housing of the mobile terminal.

Hinge and mobile terminal having inward-foldable flexible screen

Growing community of inventors

Hangzhou, China

Jingyu Zhao