In this report we will talk about Suppression of reverberation in hearing aids. Reverberation is actually a sound degradation which lead to reduced speech intelligibility. For a hearing impaired person putting on a hearing aid, this could cause communication problems and therefore,
Levy processes have attained good results in pricing single asset options. Within this dissertation, we present a technique allowing us to extend the single asset pricing approach based upon Levy processes to multiasset cases. In our approach, we suppose the log-return of
This project investigates a laser radar system. The system is based on the principles of time-correlated single photon counting, and by measuring the times-of-flight of reflected photons it can find range profiles and perform three-dimensional imaging of scenes. Because of the photon
In this dissertation, a framework is developed and demonstrated for the use of a new shape measurement system consisting of fiber Bragg grating (FBG) based strain sensors, a shape determination algorithm based on Frenet frames, and a signal processing algorithm based on
After the use of unlicensed ultra wideband (UWB) communication was allowed by FCC in 2002, UWB technology has received great interest among telecom companies. The large bandwidth allows speedy wireless data transfer and the system can also be used for high precision
Every night, local newspapers are broadcasted on Sveriges Radio P1 all over Sweden. These newspapers are for the visually impaired, afatics, dyslectics and disabled persons that for some reason can not read printed newspapers. To be able to listen to these papers,
This report covers a master thesis in signal processing. It deals with solving a problem in a special type of audio encoder used in the Swedish speech newspaper system. However, design methods and algorithms developed or investigated are rather general. A large
This Master thesis work has been carried out during between June and November 2006 at the Swedish Defence Research Agency (FOI) at the Department of Laser System, in Linköping. Conventional airborne laser scanner systems extract only the first and last echo from
Data is sampled from an 802.11b client card and then analyzed. The behavior of the signal and the characteristics of the noise is explored. Several SNR esimation algorithms are implemented and applied on the collected data. The results of this is a
During the night, encrypted spoken newspapers are broadcasted over the terrestrial FM radio network. These papers can be subscribed to by persons with reading disabilities. The subscribers presently have a special receiver that decrypts and stores the newspaper on a cassette tape.