This paper analyzes the I/Q imbalance effect of direct-conversion receiver in wide-band wireless communication system and sets up frequency-selective I/Q imbalance model for ultra-wide band system. We design a new training sequence based on extra phase rotation and propose an estimation algorithm using diversity message introduced by I/Q imbalance during the demodulation process. Theoretical analy

Popular Abstract in Swedish Bröd har varit ett av våra viktigaste baslivsmedel sedan antiken (700 f.Kr. – 400 e.Kr.) och kommer med all sannolikhet också fortsätta att vara en viktig del av vår föda även i framtiden. Det i Sverige rekommenderade dagliga intaget (RDI) av kostfiber är 25-35g. Utav dessa kostfibrer bör hälften komma från bröd (33%) och andra spannmålsprodukter (17%), vilket motsvararBread products are one of the most common and important foods in our daily diet, and have been since ancient times. Although it has a long history and comes in many variations, the staling phenomenon of bread is still not fully known. Staling is a complex phenomenon that includes all the physical and sensorial changes occurring in bread during storage. To gain a better understanding of staling, di

Wastewater treatment processes are inherently dynamic because of variations in the influent flow rate, concentration, and composition. The adaptive behaviour of the microorganisms further emphasizes this fact. Mathematical models and computer simulations are essential to describe, predict, and control the complicated interactions of the processes. Any attempt to model all details of the various re

n this paper a disturbance in the western part of the Swedish power system, 1997, January 1, is studied. Two large nuclear units tripped due to a short circuit in a substation. The purpose of this paper is to study the damping features of power oscillations by using synchronised measured frequency deviations between generators and the mean system frequency. The measurements are based on GPS (Globa

How might we understand the norms and normativity of international law? This is a conversation between international law and theology on the meaning of norms and normativity in international law - as seen from inside the discipline of international law.

In this egocentric article I describe briefly the segmental phonology of my own southern Swedish idiolect. I grew up in Getinge in central Halland, about 20 km north of Halmstad, speaking a regional variant of southern Standard Swedish. Although my dialect has certainly changed somewhat after I moved to Lund in 1964 at the age of 20, I believe that I still retain the basic pronunciation of vowels

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The terms justice and peace have long been the focus of much debate as well as numerous attempts of conceptualization. Just peace however, has been very little studied despite being widely used together in everyday language. The terms justice and peace are therefore insufficiently conceptualized together and surprisingly little interest has been given to how a just peace can be realized. This pape

Most identification and design methods for discrete time data assume that the inputs and outputs are sampled at the same time instants. In practice, there is always a delay due to the conversion times in the analog to digital converters. In the paper it is shown how data with sampling delays can be used to obtain the model corresponding to synchronous sampling. The modification is simple and can b