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The AVS video coding standard employs a robust Rate-Distortion Optimization (RDO) technique to improve compression performance. Although RDO technique can achieve better compression efficiency, it also increases tremendous computational complexity. In order to reduce complexity, this paper proposes a fast intra mode decision algorithm for AVS based on the ranking of Sum of Absolute Transformed Difference...
Different modulation methods have been proposed to control the multilevel inverters. This paper focuses on the staircase modulation that is very popular for multilevel inverters with low switching frequencies. Nonreal-time algorithms for the staircase modulation cannot be applied practically in multilevel inverters with varying voltage steps, since the sizes of lookup tables would be huge. We propose...
Magnetometers used in the measurement-while-drilling (MWD) usually suffer from the deviation of the earthpsilas magnetic field by a variety of external factors, and they are expensive and heavy. The solid vibration gyro based on Micro-quartz material, as a candidate to the Magnetometer surveying sensor in MWD, was presented in this paper. A rectangle shape vibrator supported by two rings was used...
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