Trend lines are revealed useful to explain the past evolution of timeseries of prices that are represented on graphics. However, in practice, there are a huge amount of possible trend lines to be plotted but only a reduced ...

In this paper we explore the use of non-linear transformations in order to improve the performance of an entropy based voice activity detector (VAD). The idea of using a non-linear transformation comes from some previous ...

In this article we present a study and the corresponding implementation of low cost printed antennas in the 2,4GHz band. These antennas work with low cost transceivers that give a FR input/output signal in the band of ...