This paper presents a DC/AC converter consisting of two two-level inverters. The complex is built using standard three-phase inverters: the main inverter (MI) and auxiliary one (AI). MI controlled in simple way to generate stepped output voltage AI works as an active filter limiting higher harmonics voltage. filtering process based on orthogonal space vector theory. A development modification b...

We propose a nonlinear concealing–restoring system (CRS) set on the data link layer of open-systems-interconnection (OSI) reference model to secure physical layer. CRS conceals those by disturbing them with some random noises, and restores from concealed ones original noise elimination based proper stochastic filtering theory.

It has been established under very general conditions that the ergodic properties of Markov processes are inherited by their conditional distributions given partial information. While the existing theory provides a rather complete picture of classical filtering models, many infinite-dimensional problems are outside its scope. Far from being a technical issue, the infinite-dimensional setting gi...

Abstract Handover (HO) which can make user equipment (UE) communicate with the eNodeB (evolves NodeB) with the highest signal quality will have bad performance in high-speed railway scenario. In this paper, detailed introduction is made on Layer3 (L3) filtering theory to help solve this problem. HO measurement and HO decision procedure based on L3 filtering are designed and implemented in a dyn...

Kalman filtering is a classic state estimation technique used widely in engineering applications such as statistical signal processing and control of vehicles. It is now being used to solve problems in computer systems, such as controlling the voltage and frequency of processors to minimize energy while meeting throughput requirements. Although there are many presentations of Kalman filtering i...

Community assembly theory suggests that two processes affect the distribution of trait values within communities: competition and habitat filtering. Within a local community, competition leads to ecological differentiation of coexisting species, while habitat filtering reduces the spread of trait values, reflecting shared ecological tolerances. Many statistical tests for the effects of competit...

One of the potent personalization technologies powering the adaptive web is collaborative filtering. Collaborative filtering (CF) is the process of filtering or evaluating items through the opinions of other people. CF technology brings together the opinions of large interconnected communities on the web, supporting filtering of substantial quantities of data. In this chapter we introduce the c...