Insamling av data med hjälp av en linjär bildsensor, I/0 modul och LabVIEW i realtid för analys.Uppgiften innefattar val av skanner och I/O modul samt utvärdering av den insampladeinformationen. I rapporten beskrivs det också hur olika enheter synkroniseras med varandra. / This report deals about how to collect data with a linear image sensor, I/0 modul and LabVIEW in real time for further analyses. The report declares the choices of scanner and I/O modul for the insamples of data information. This rapport also tells about how to synchronize the equipments.

This thesis has been divided into two essential parts, the purpose of the first part is to investigate and explore a three-tier architecture for remote health monitoring system capable to collect, store and forward the physiological data, which has been collected by a mobile device via a bluetooth connection from body sensors, to an internet data base server. During the second part, we have tried to take a deep look into a heart beat modeling method. We have studied and investigated on extended integral pulse frequency modulation model which is used for the presence of ectopic beats and heart rate turbulence.

This  report  is  a  part  of  a  master  thesis  project  done  at  Ericsson  Linköping  incooperation with Linköpings Tekniska Högskola (LiTH). This project is divided intwo different parts.  The first part is to create a measurement node that collectsand processes data from network time protocol servers.   It is used to determinethe  quality  of  the  IP  network  at  the  node  and  detect  potential  defects  on  usedtimeservers or nodes on the networks.The second assignment is to analyze the collected data and further improve theexisting synchronization algorithm.  Ip communication is not designed to be timecritical and therefore the NTP protocol needs to be complemented with additionalsignal processing to achieve required accuracy.  Real time requirements limit thecomputational complexity of the signal processing algorithm.

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The complexity of electronic system is increasing rapidly and many of the electronic systems   are   embedded   systems   implemented   as   system-on-chip   (SoC).   This increasing  complexity  of  SoC  leads  to  longer  test  application  time  (TAT).  One approach  to  reduce  the  TAT  is  to  perform  tests  to  several  cores  in  parallel,  which requests transporting test data in parallel instead of sequentially. In IEEE Std. 1500, it supports parallel test mode by incorporating a user-defined, parallel   test   access   mechanism   (TAM)   to   speed   up   the   testing   process.   The user-defined  TAM  means  the  detail  of  TAM  design  is  excluded  from  standard  and decided by system integrator. Therefore, we propose a customized TAM structure and two approaches to guarantee full-spatial-parallelism under a bus width limit, and aim to  minimize  the  total  number  of  wire  connections.  In  order  to  know  how  close  to optimal  solution  our  solutions  are,  we  implement  a  Simulated  Annealing  (SA) algorithm to do the comparison. The  experimental  results  of  the  two  proposed  approaches  based  on  benchmark ISCAS’89  and  ITC’02  show  the  parallelism  can  be  guaranteed  by  our  approaches while using only a few wire connections per pin, and the execution times of them are shorter compared with the SA algorithm.

Today, the mobile communication systems can be found everywhere due to thelow cost and high degree integration level which is achievable with CMOS. Theuser can use a number of applications using only one device. The transmitteris one of the main blocks in communication systems for transmitting the signal,where the RF power a mplifier (PA) amplifies the RF signal to the r equiredoutput power so that signal can reach the r eceiver. Nowadays mostly transmitteremploys such modulation schemes which have high data rate and to amplify suchsignals, a linear PA is required. The efficiency of the PA should also be high, sothat it can provide high output power to load without consuming much poweritself.This thesis work describes the “CMOS Power Amplifier for IEEE 802.11g/nstandard (2.4GHz) in 65nm process”. The PA is a two stage amplifier biasedin Class AB mode with LC type input matching. The inter-stage matching iscarried out by the RF choke of the driver stage and the input capacitance of thepower stage. The output of the PA is power matched to the load. A linearizingtechnique is implemented to make PA more linear. The simulation results showsthat the designed PA gives 1dB compression point of +23.36dBm, a gain of26.82dB, a power added efficiency of 30%, a linear current of 122.30mA providing18dBm power to load and saturated output power of 24.45dBm.

Marinediesel has, to meet there customers needs for a suitable sterndrive to powerboats, developed a prototype. The prototype is currently in the testing phase. The opportunity to test the sterndrive under load inside the workshop has not previously been possible. Until now the drive has been tested in a test bench without any load on the propeller axle. The prototype has also been tested under real conditions mounted on a boat.The idea with my thesis was to create a test bench that can run around the clock in order to be able to test things like wear and service intervals and other things that require that the test interval is long. In this report, I have deepened me in how to measure the torque on a rotating shaft. This specialization has led to that the torque is not measured directly on a shaft. Instead the torque is calculated from the oil pressure in the hydraulic cylinders which manages the application of simulated resistance of the propeller shaft. This simulated resistance is created by hydraulic cylinders, belts and pulleys that are stretched and released depending on the desired clamping. The output and input signals is handled by a PLC with integrated touch screen. The choice of mechanic drive finally ended with an inverter drive controlled asynchronous motor of 75kW. In this report there is also a piece about some ways to reduce the unwanted noise that occurs with inverter drives. Enjoy the reading.

At the Division of Electricity at Uppsala University there is an experimental rig for hydroelectric generators. The experimental rig’s vital part is a 12-pole synchronous machine, whose electrical characterizing parameters (resistances, inductances and time constants) are unknown. The aim of this thesis is to characterize the machine in its current state by perform a Standstill Frequency Response (SSFR) test. From the analysis of the measurement data, which is a part of the test, a set of basic parameters have been received. Based on this set of basic parameters a mathematical model has been matched to fit the measurement data so that the last unknown parameters could be obtained. The result of the analysis and fit gave a set of parameters. The set of parameters resulted in a more or less good fit to the measurement data. It has been shown that even though the parameters are based on the generator itself it does not necessarily give the best fit. As a verification of the parameters, which has been received from the test, further work is needed by implementing the parameters into a dynamic model and then compare that model with measured responses from electrical or mechanical interference of the generator.

Orthogonal Frequency Division Multiplexing (OFDM) is a suitable solution due to its many advantages known in wireless communications. On the other hand, optical communications is also used as a backbone to transmit and receive large data rates with economical and good performance. Recently, fiber optical communication and OFDM method are combined to obtain both advantages in a communication link. Coherent optical OFDM (CO-OFDM) has recently been proposed against the chromatic dispersion effect in electrical domain. According to the ITU-T standards there are 111 channels (C and L bands) can be used (191.4 to 185.9 THz) at 50 GHz spacing. Thanks to Wavelength Division Multiplexing, even we use only one RF carrier, we can reach 1.7 Tb/s (111*16 Gb/s) using only one optical cable and utilizing C and L bands. In this research, CO-OFDM technique is modeled and simulated by designing a Monte Carlo simulation. In this simulation, dispersion, data rate, SNR-BER and BER-Distance variations are calculated and results are given in graphical forms. These graphics show the performance of the CO-OFDM system in 5, 8 and 16 Gb/s at different distances for one RF carrier and one optical carrier. It is also shown that how to get 64 Gb/s data rate using the same structure with one optical carrier.

State estimation deals with estimation of the state of an object of interest by observing noisy measurements. The process to obtain the state estimations is called filtering. In this report several filters are compared to an existing one. The new filters deal with nonlinear process and measurement models in a different way than the existing filter. Instead of approximating the nonlinear transformations the probability densities are approximated by a set of points which undergo the nonlinear transformation. The application for which the filters will be used is to estimate the position and orientation of a camera in a markerless environment, using data from an inertial measurement unit and a camera. It is found that the corresponding process and measurement models contain nonlinearities and therefore an accuracy improvement is expected with the new filters. The new filters are variations of the so-called unscented Kalman filter. Also a discussion on the marginalized particle filter is presented. Instead of using randomly chosen samples as in the particle filter methods, the unscented Kalman filter uses deterministically chosen points. The marginalized particle filter partitions the variables of the system in a linear and a nonlinear part. Linear Kalman filters are applied to the linear variables and a particle filter to the nonlinear variables, thus reducing the computational load. Details of various implementations of the filters are given, as well as the motivation for the specific implementations. Tests are carried out to assess the performance of the filters. This is done with both simulation data and real measurements. A comparison is made to the original extended Kalman filter. The tests are focussed on accuracy and computational load. Results showed that the use of the new filters did not improve accuracy. This is mainly due to the fact that the nonlinearities are not so severe. Furthermore the filters had a higher computational load, which is an important aspect in the system reviewed in this report. Therefore the current filter need not to be replaced. The unscented Kalman filter is a good alternative to the EKF in case of new applications, since it can handle the system in a black-box manner in contrast to the EKF.