In-phase/quadrature (I/Q) signal processing is a fundamental tool in processing of bandpass signals. Especially in radio transceivers, it offers an effective solution to the inherent image signal problem without exhaustive ...
Positron emission tomography (PET) with [15O]H2O provides a method to measure quantitatively the myocardial perfusion in vivo. The quantification enables an objective and accurate way to compare studies acquired on different ...
This Thesis considers the design of application-specific parallel structures for digital signal processing. Due to wideness of the subject, the discussion has been restricted to the studies of the discrete cosine transform ...
Reactive systems, i.e. those in constant interaction with their environments, are often distributed entailing concurrency. Real time is a continuous quantity used to model timing constraints of reactive systems. Developing ...
Even through there are several studies in the literature regarding the topology of CDMA-based networks, there is a clear need for a solid analysis including extensive simulations and radio interface measurements of different ...
One of the most popular techniques for accurate mobile positioning is based on the Time of Arrival (TOA) as a ranging metric. The accuracy of measuring the distance using TOA is sensitive to the multipath condition between ...
The classification of natural images is an essential task in current computer vision and pattern recognition applications. Rock images are a typical example of natural images, and their analysis is of major importance in ...
In many digital-filtering applications, it is crucial that the shape of the waveform to be filtered is preserved. This desirable property is owned by a class of digital filters, collectively referred to as linear-phase ...
High-throughput measurement techniques have revolutionized the field of molecular biology by gearing biological research towards approaches that involve extensive collection of experimental data and integrated analysis of ...
Location-based applications exist at the border of the real and virtual worlds. These two realities are merged into a single experience that provides some added value for the user. Objects in the real world, whose position ...
Speech technology in the form of automatic speech recognition (ASR) and speech synthesis (text-to-speech or TTS) has become common in everyday use. Applications such as in-car navigation, hands-free control of devices, ...
Wireless Local Area Networks (WLAN) have developed to widely utilized technologies for short-range telecommunications. While the technologies enable various new services, the wireless environment and the constraints of ...
In computed tomography, information about inner structures of an object (or a patient) is obtained indirectly by numerically reconstructing an image of the object from its measured projections. The measured Radon projections ...
New methods for the design, analysis and generalization of polynomial predictive filters (polynomial predictors for short) are developed in this thesis. Polynomial predictors are a subclass of linear mathematical filters, ...
Parallel processing is continually concerned about how to supply all the processing nodes with data. Many of the applications favor special data patterns that could be accessed in parallel. This is utilized in parallel ...
The purpose of this thesis is to study properties of the EEG signal recorded during anesthesia or sedation. The main emphasis was put on the regularity/complexity analysis of the EEG during gradually deepening sedation and ...
Personal positioning repeatedly occurs in severely degraded signal conditions, which sets a challenge for all error detection methods. Compared to ideal positioning conditions, the average signal condition is weaker and ...
In this research the relevance of the guidance of software process models to industry is studied - more precisely, how relevant the basic project management activities are to the industry projects and to the success of ...
Channel equalization is a very important anti-multipath technique in broadband communication systems and it has received much attention during the era of digital communications. Frequency selective fading arises whenever ...
This thesis deals with surface extraction from noisy volumetric images, which is a common problem in medical image analysis. Due to noise, the use of a-priori information about surface topology and shape is necessary for ...