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International Journal on Document Analysis and Recognition (IJDAR) - Advances in image object detection lead to applying deep convolution neural networks in the document image analysis domain.... 相似文献
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An investigation of the effects of apodization on a holographic demultiplexer that is based on a photopolymer grating is presented. Uniform and Gaussian apodized gratings are fabricated in a DuPont HRF-150-38 photopolymer. From the theoretical and experimental results, the spectral response of the apodized grating has a larger main lobe but lower sidelobes than those in the uniform-grating case. A 42-channel demultiplexer that is based on the Gaussian apodized grating with an 0.4-nm channel spacing is demonstrated. A cross-talk level of -30 dB and an interchannel uniformity of 1.5 dB are archived in the wavelength range of approximately 1550 nm. 相似文献
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Nguyen Van-Long Ha Dac-Binh Truong Van-Truong Tran Duc-Dung Chatzinotas Symeon 《Mobile Networks and Applications》2022,27(4):1719-1733
Mobile Networks and Applications - In this paper, we study the physical layer security (PLS) of a radio frequency energy harvesting (RF EH) non-orthogonal multiple access (NOMA) relaying network... 相似文献
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