This paper describes a sensor that employs three laser beams in order to measure the 3-D distress characteristics of road surfaces at highway speed. The 3-D feature extraction is done by means of a combination of two measuring techniques: triangulation and defocusing. In order to generate a pattern of transverse profiles spaced by 11cm at a speed of about 20m/s, three transverse profiles are ac...

We discuss the application of coded modulation for power-line communications. We combine M-ary FSK with diversity and coding to make the transmission robust against permanent frequency disturbances and impulse noise. We give a particular example of the coding/modulation scheme that is in agreement with the existing CENELEC norms. The scheme can be considered as a form of coded Frequency Hopping...

BACKGROUND Domestic and European Union wide directives are encouraging more and more utilities to modernize their distribution grids. Spain became a pioneer by starting to replace traditional metering systems with modern standardized AMR solutions. In addition to the regulatory directives, Iberdrola grabbed this opportunity to think beyond metering. Iberdrola introduced remote management and co...

Recently in-building power lines have been considered as a medium for high speed data transmission for applications like home networking and internet access. Frequency selectivity and time variation of this medium in addition to the high level of narrow-band and impulsive interference makes multi-carrier modulation, and especially its popular variant discrete multitone (DMT), an attractive modu...

In this paper power system model is represented in a new domain that relates to Multi-Resolution Analysis (MRA) space. By developing mathematical model of elements in this space using Galerkin method, a new alternative method for power system simulation in nonsinusoidal and periodic conditions is developed. The mathematical formulation and characteristics of new proposed space is expressed. Als...