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Abstract in UndeterminedThis paper is based on measurements obtained during a test of controlled islanding of part of the 50-kV grid in Southern Sweden. The purpose of the test was to verify operation of generator controls during islanding. The variations in voltage magnitude and frequency are shown as well as flicker severity and very-short variations. A number of performance indices have been ca
Test planning for core-based 3D stacked ICs under power constraint is different from test planning for non-stacked ICs as the same test schedule cannot be applied both at wafer sort and package test. In this paper, we assume a test flow where each chip is tested individually at wafer sort and jointly at package test. We define cost functions and test planning optimization algorithms for non-stacke
Some earlier trellis source coding methods are extended to new sources and new rates above and below one. The new schemes have in common a code design based on branch correlation and an encoder based on both the Viterbi algorithm and tailbiting MAP techniques, The results from these simple schemes often exceed that of all previous methods with similar complexity.
It is not often that one is instantaneously able to apply the results of basic research. This work is an example of such an exception. A widely held conviction has been that human peripheral vision could not be improved through optical correction. It w
The effect of relic gravitational waves on the polarization of the CMB is analytically studied. The equation of radiative transfer for the polarization is transformed into two coupled differential equations by Polnarev's method and an approximate solution is derived.
Content distribution from wired to wireless domain has traditionally being perceived as the problem of wireless last-hop extension. We argue that increasing the physical transmission capability at the last hop bottleneck alone will not be sufficient to cater for throughput demands and come up with a network architecture which can be tailored favorably for content distribution within mobile and wir
The Furuta pendulum is used to evaluate a friction compensator based on the dynamic LuGre friction model. The effect of friction compensation is very well illustrated by reduction of limit cycles when stabilising the pendulum. The observer based LuGre friction compensator is compared with classical Coulomb and Stiction compensator schemes. Existing analysis of the LuGre observer is extended to obs
The ECTS grade transfer scale is an interface grade scale to help European universities, students and employers to understand the level of student achievement. Hence, the ECTS scale can be seen as an interface, transforming local scales to a common system where A-E denote passing grades, while FX and F indicate failure. By definition, ECTS should distribute the passing students into five cohorts,
A CAD tool for on chip controller synthesis to digital signal processors has been developed. Micro programmed digital signal processors often have a complicated control flow where structure and complexity of the micro program varies considerably between applications. Therefore, an advanced controller architecture adaptive to various algorithms is synthesized. The controller generates control word
