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On channel estimators for iterative CDMA multiuser receivers in flat Rayleigh fading

In this work we compare channel estimation algorithms for use in an iterative CDMA receiver in a block fading environment. The receiver consists of a soft multiuser data estimator, a bank of single user decoders, and a multiuser channel estimator. The multiuser data estimator is implemented as parallel interference canceler with unconditional post-MMSE filtering (PIC-MMSE) and the decoder is a sof

Tracking the Mind's Eye

This thesis investigates, in three studies based on eye-tracking experiments, the relationship between eye movements and mental imagery. The first study is an investigation of eye movements during mental imagery elicited both visually and verbally. The use of complex stimuli and the development of a novel method where eye movements were recorded concurrently with verbal data enabled this relation

Management by Recognition: An Interactionist Study of Normative Control in Voluntary Work

Many contemporary work organizations are concerned with how they can influence employees’ intrinsic motivation. Their quest follows a widespread realization that people do not necessarily work harder because of monetary incentives or direct commands. Instead, people’s inner motives, their urge to self-realize and get recognition, are seen as key factors influencing workers’ mindsets and behaviors.

Att skapa en konsument : Råd & Rön och den statliga konsumentupplysningen

The Swedish consumer magazine Råd & Rön (”Advice and Results”) has been available to Swedish consumers since 1958. For a major part of this time the Swedish state, represented by Konsumentverket (the Swedish Consumer Agency) and its predecessor, Konsumentinstitutet (the National Institute for Consumer Information), was the owner of the magazine. In 2006 Råd & Rön was sold to the independen

Trajectory Generation for Assembly Tasks Via Bilateral Teleoperation

Abstract in UndeterminedFor assembly tasks, the knowledge of both trajectory and forces are usually required. Consequently, we may use kinesthetics or teleoperation for recording human demonstrations. In order to have a more natural interaction, the operator has to be provided with a sense of touch. We propose a bilateral teleoperation system which is customized for this purpose. We introduce diff

Proton elastic form factor ratios to Q = 3.5 GeV2 by polarization transfer

The ratio of the proton elastic electromagnetic form factors, GEp/GMp, was obtained by measuring Pt and P, the transverse and longitudinal recoil proton polarization components, respectively, for the elastic epepreaction in the four-momentum transfer squared range of 0.5 to 3.5 GeV2. In the single-photon exchange approximation, GEp/GMp is directly proportional to Pt/P. The simultaneous measurement