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The performance of adaptive arrays is severely degraded if the weights are in the presence of interference nonstationarity and signal steering vector mismatch. Because of this, we proposed a new robust null broadening adaptive beamforming algorithm. The method is realized by the combination of projection transform and diagonal loading technique. We got a new sample covariance matrix through diagonal...
The rate control model used in the HEVC reference software HM10.0 is a R-λ model. In this model the distortion is measured by Mean Squared Error (MSE) and Sum of Absolute Difference(SAD). However, MSE and SAD are not correlated well with perceptual image quality. In this paper, we propose an improved LCU-level rate control algorithm based on the structural similarity (SSIM) index which was proved...
After conducting a pull-off test, the bond and anchorage characteristics of pre-stressed steel bars with spiral grooves were analyzed and the bond and anchorage strength was statistically regressed. The reliability was analyzed on the basis of the experimental study. Recommendations for the design of anchorage length of pre-stressed steel bars with spiral grooves were proposed.
With increased E-government website, it becomes more and more important how to evaluate objectively and accurately performance of e-government information services. This paper builds evaluation index system based on balanced scorecard. Then rough set theory and information entropy are adopted to process the obtained research data. Firstly, property reduction is processed to identify redundant indexes,...
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