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With the rapid growth of power system, it is becoming increasingly difficult to realize reach and time coordination for conventional backup protection. To cope with those problems, wide-area protection is widely researched. In this paper, a novel dynamic cooperation mechanism of wide-area protection is proposed, which can operate better than distributed and(More)
We propose a new no-reference image quality assessment model nPSNR (No-reference PSNR) for JPEG compressed images. The model performs in DCT domain and the DCT coefficient distribution is used. This method estimates the MSQE (mean-squared quantization error) of a decoded image with the distributions of AC coefficients and DC coefficients of the encoded(More)
Currently, some dynamic tracking controllers have been proposed for nonholonomic mobile robots with the unknown visual parameters and has been proved to stabilize the closed loop systems in theory. However, there is lack of the relevant experiment verification except for several simulations. In this paper, we proposed a novel visual servoing feedback(More)
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