Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 79 for “"Signal processing algorithms"”.
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Flexible signal processing algorithms for wireless communications
Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2000.
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Array Signal Processing Algorithms for Beamforming and Direction Finding
Array processing is an area of study devoted to processing the signals received from an antenna array and extracting information of interest. It has played an important role in widespread applications like radar, sonar, and wireless communications. Numerous adaptive array processing algorithms have …
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Quantum signal processing
Quantum signal processing (QSP) as formulated in this thesis, borrows from the formalism and principles of quantum mechanics and some of its interesting axioms and constraints, leading to a novel paradigm for signal processing with applications in areas ranging from frame theory, quantization and …
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Hardware and software architecture for non-contact, non-intrusive load monitoring
… that supplies electricity to multiple devices. Signal processing algorithms are then used to separate the summed power usage into the individual power usage of each device. This thesis presents three new developments: a hardware architecture that measures the electromagnetic fields surrounding a …
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Parallel signal-processing for everyone
We designed, implemented, and evaluated a signal-processing environment that runs on a general-purpose multiprocessor system, allowing easy prototyping of new algorithms and integration with applications. The environment allows the composition of modules implementing individual signal-processing …
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A software-defined receiver for laser communications using a GPU
… and software implementations. Graphics Processing Units (GPUs) can reduce the complexity in receiver design since GPUs require less specialized knowledge and can enable faster development times than Field Programmnable Cate Array (FPGA) implementations, while still retaining comparable …
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An environment for the development of digital signal processing software
Prior to about 1980, real-time signal processing development work was dominated by hardware design time; each new algorithm required special hardware if it were to run in real time. The introduction of high-speed general-purpose digital signal processors has changed all that. Since these signal …
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UV-Induced Intrinsic Fabry-Perot Interferometric Fiber Sensors and Their Multiplexing for Quasi-Distributed Temperature and Strain Sensing
… are analyzed. Frequency estimation based digital signal processing algorithms are developed to determine the absolute OPDs of the IFPI sensors. Digital filters are used to select individual frequency components and filter out the noise. The frequency and phase of the filtered signal are estimated …
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The Development of Novel Apparatus, Systems, and Methods for Non-Invasive Thermal Interrogation (NITI)
… When these measurements are combined with signal processing algorithms, such as parameter estimation routines or other techniques, they can be used to non-invasively determine the internal temperature and parameters of the object in real-time. Consequently, NITI has a number of applications …
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Comparison of high level design methodologies for algorithmic IPs : Bluespec and C-based synthesis
High level hardware design of Digital Signal Processing algorithms is an important design problem for decreasing design time and allowing more algorithmic exploration. Bluespec is a Hardware Design Language (HDL) that allows designers to express intended microarchitecture through high-level …
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Acoustic Frequency Domain Reflectometry
… of temperature is tested using several novel signal processing algorithms for strain determination and is estimated to have a resolution of 0.58 °C over a 20 cm gauge length. An error correction algorithm to improve SNR in the measurement of strain is proposed and validated. The sensing system …
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A Calibration Method for a Controlled Reception Pattern Antenna and Software Defined Radio Configuration
… front-end components for down-stream adaptive signal processing algorithms. For verification, the calibration data produced by the CRPA/SDR system configuration will be compared with calibration data produced using a traditional CRPA anechoic chamber test approach where each element of the …
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Digital Signal Processing for Front-end Non-idealities in Coherent Optical OFDM system
In this thesis, we propose digital signal processing algorithms for combatting the front-end non-idealities in CO-OFDM systems, including carrier frequency offset, linear phase noise and IQ mismatch. Firstly, we propose a novel frequency offset compensation method, which is successfully …
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BYU micro-SAR: A very small, low-power LFM-CW Synthetic Aperture Radar
… modulation-continuous wave (LFM-CW) transmit signal is utilized. Use of an LFM-CW signal introduces some differences from the typical strip map SAR processing model that must be addressed in signal processing algorithms. This thesis presents a derivation of the LFM-CW signal model and the …
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Microfuidic Devices and Open Access Tool for Localized Microinjection and Heart Monitoring of Drosophila Melanogaster
… larvae. Several image segmentation and signal processing algorithms were developed to detect the heart, extract the heartbeat signal, and quantify heart rate and arrhythmicity index automatically, while other heartbeat parameters were quantified semi-automatically using the M-mode. In …
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Functional composition and decomposition for signal processing
… use of functional composition in the context of signal processing. Its many potential applications to signal processing include utilization of the composition of simpler or lower order subfunctions to exactly or approximately represent a given function or data sequence. Although functional …
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Signal Detection and Modulation Classification in Non-Gaussian Noise Environments
Signal detection and modulation classification are becoming increasingly important in a variety of wireless communication systems such as those involving spectrum management and electronic warfare and surveillance, among others. The majority of the signal detection and modulation classification …
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Digital Signal Processing for segmented HPGe Detectors, Preprocessing Algorithms and Pulse Shape Analysis
… with digital electronics. Pulse shape analysis algorithms to determine the interaction position of gamm-rays were implemented on a Digital Signal Processor and validated in an experiment using a collimated gamma-ray source. Emphasis was placed on the properties of the different digital signal …
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The design and implementation of a congestion control plane
… losses, and ECN via a well-defined interface to algorithms running in the off-datapath Congestion Control Plane (CCP). The algorithms use this information to control the datapath's congestion window or pacing rate. Algorithms written in CCP can run on multiple datapaths. CCP improves both the …
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