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[Report papers] Polarization-discrimination technique to maximize the lidar signal-to-noise ratio for daylight operations DL : 11: Polarization-discrimination technique to maximize the lidar signal-to-noise ratio for daylight operations
Date : 2013-04-16 Size : 1.09mb User : sunxuanmailbox@163.com
[Report papers] Automatic noise cancellation technology DL : 0: This thesis introduces the basic research work on the development of the Narrowband Active Noise Control System (ANC). It focuses on providing the noise generator. It combines the virtual instruments’ hardware with software close to realize the function on three main parts: they are data acquisition, data analysis and extraction and noise sound generation, which is based on sound card for the A/D and D/A transformation. This system can not only be used to provide narrow band noise signal for the research of ANC, but also be widely applied to various fields such as diagnosing malfunction, spectrometric computation, signal source and so on.
Date : 2020-06-12 Size : 988.25kb User : jionad123
[Report papers] Robust Image Watermarking Based on Generative Adversarial Network DL : 0: Digital watermark embeds informa- tion bits into digital cover such as images and videos to prove the creator’s ownership of his work. In this paper, we propose a robust image watermark algorithm based on a generative adversarial network. This model includes two modules, generator and adversary. Generator is mainly used to generate images embedded with watermark, and decode the image dam- aged by noise to obtain the watermark. Adver- sary is used to discriminate whether the image is embedded with watermark and damage the image by noise. Based on the model Hidden (hiding data with deep networks), we add a high-pass filter in front of the discriminator, making the watermark tend to be embedded in the mid-frequency region of the image. Since the human visual system pays more attention to the central area of the image, we give a higher weight to the image center region, and a lower weight to the edge region when calcu- lating the loss between cover and embedded image. The watermarked image obtained by this scheme has a better visual performance. Experimental results show that the proposed architecture is more robust against noise interference compared with the state-of-art schemes.
Date : 2021-05-05 Size : 688kb User : bamzi334
[Report papers] Matlab Simulation of Cordic based Adaptive Filtering for Noise Reduction using Sensors Aray DL : 0: Matlab Simulation of Cordic based Adaptive Filtering for Noise Reduction using Sensors Aray
Date : 2022-08-05 Size : 806.58kb User : nitubisen.nuva