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In this paper, a research on fatigue life estimation methods for printed circuit board assemblies (PCBA) under vibration loading is conducted. It mainly makes a comparison on fatigue life estimation results, for a FBGA mounted on the center of printed circuit board (PCB) with simply supported on all four sides and subjected to random vibration loading, between Steinberg's model and three-band method...
In this paper, we consider the estimation methods of parameters and the variance component in the linear mixed-effects model with measurement error. The likelihood-based methods are commonly used in random effects models, but it needs some assumption on the error distribution and the computation of likelihood-based methods is difficult. In this paper, two corrected methods based on least square are...
In this paper, the influence of imperfect carrier phase synchronization on the performance of turbo-coded system is analyzed and a novel method called Logarithm-A-Posteriori-Probability-Ratios (LAPPRs)-statistic-decision-aided for carrier phase synchronization and decoding is proposed. The bits satisfying the criterion presented in this paper are chosen iteratively for Data-Aided estimation and phase...
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