|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Parity recognition of blade number and manoeuvre intention classification algorithm of rotor target based on micro-Doppler features using CNN显示文摘This paper proposes a parity recognition of blade number and manoeuvre intention classification algorithm of rotor target based on the convolutional neural network(CNN) using micro Doppler features. Firstly, the time-frequency spectrograms are acquired from the radar echo by the short-time Fourier transform.Secondly, based on the obtained spectrograms, a seven-layer CNN architecture is built to recognize the blade-number parity and classify the manoeuvre intention of the rotor target. The constructed architecture contains a leaky rectified linear unit and a dropout layer to accelerate the convergence of the architecture and avoid over-fitting. Finally, the spectrograms of the datasets are divided into three different ratios, i.e., 20%, 33% and 50%,and the cross validation is used to verify the effectiveness of the constructed CNN architecture. Simulation results show that, on the one hand, as the ratio of training data increases, the recognition accuracy of parity and manoeuvre intention is improved at the same signal-to-noise ratio(SNR);on the other hand, the proposed algorithm also has a strong robustness: the accuracy can still reach 90.72% with an SNR of – 6 dB. | WANG Wantian TANG Ziyue CHEN Yichang SUN Yongjian | 2020 | Journal of Systems Engineering and Electronics2020，31，5： | 3 |
| 2 | Mesoscale investigation of frost formation on a cold surface显示文摘 | Xiaomin Wu Wantian Dai Wangfa Xu Liming Tang | 2006 | Experimental Thermal and Fluid Science2006，，8： | 1 |
| 3 | Mesoscale investigation of frost formation on a cold surface显示文摘 | Wu Xiaomin Dai Wantian Xu Wangfa | 2007 | Experimental Thermal and Fluid Science2007，31，： | 1 |
| 4 | Real-time Intemet video using error resilient scalabel compression and TCPfriendly transport protocol显示文摘 | Avideh Zakhor | 1999 | IEEE Transactions on Multimedia1999，1，： | 1 |
| 5 | Image segmentation by three-level thresholding based on maximum fuzzy entropy and genetic algorithm 显示文摘 | Wang Baotao Jing Wantian Jin Liu | 2003 | Pattern Recognition Letters2003，24，1： | 1 |
| 6 | Methane hydrate crystal growth on shell substrate显示文摘Hydrate crystals growth on the surface of methane bubble(hydrate film)in pure water was studied by using a high-pressure visible microscope under the conditions of subcoolingΔT=5.44-13.72 K and methane concentration differenceΔC=2.92-8.19 mol·L^(-1).It was found the hydrate film is porous and the hydrate crystals grow towards the liquid phase on the film substrate.The crystal morphology and growth rate are affected byΔT andΔC.WhenΔT<8.82 K andΔC<4.12 mol·L^(-1),the hydrate grows into scattered columnar crystals,and the axial growth rate of the crystal gradually decreases.WhenΔT>8.82 K orΔC>4.12 mol·L^(-1),the hydrate crystals grow in dendritic shape,and the axial growth rate increases first and then decreases.The perimeter and area of the growing hydrate crystals were measured,and the fractal dimension of hydrate crystal under differentΔC andΔT was calculated.The results show that the fractal dimension of columnar hydrate crystal is greater than 3.When3.87 mol·L^(-1)<ΔC<4.20 mol·L^(-1) and 7.4 K<ΔT<8.8 K,the fractal dimension of columnar hydrate crystal is greater than 4;The fractal dimension of dendritic hydrate crystal is less than 3.WhenΔC>4.77 mol·L^(-1),ΔT<8.52 K,the fractal dimension of dendritic hydrate crystal is less than 2. | Xin Jiang Baojiang Sun Zhiyuan Wang Wantian Zhou Jiakai Ji Litao Chen | 2022 | Chinese Journal of Chemical Engineering2022，35，3： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员