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 10 of 10 for “"fast signal"”.
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High-Performance CMOS Front-End ASICs for SiPM Detectors and High-Frequency Ultrasound and Photoacoustic Imaging
… The slow-rising edge of standard SiPM signal, however, makes the timing measurement sensitive to noise and leads to poor timing resolution. Besides, the SiPM energy measurement utilizing charge-sensitive amplifiers suffers from high power consumption and is not suitable for array-based …
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Laser plasma particle velocities
… 376 oscilloscope trace pictures of the probe signal, four velocity signals occurred with regularity. The plasma velocities detected by the probe were determined to be 3.7 X 10(7) cm/sec, 1.5 X 10(7)CM/Sec, 5.6 X 10(6) cm/sec (the bulk of the plasma) and 4.o X 10(6) cm/sec. A fifth, very fast …
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Investigation of a Correlation Based Technique for Rapid Phase Synchronization in the DVB-S Standard
… of time required to synchronize the received signal. To enhance the correlator's ability to detect the DVB-S synchronization bytes, a two byte, rather than single byte, known sync word is proposed as a modification to the standard. The motivation behind a longer sync word is to improve the …
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Developmental myelination and myelin plasticity during spatial working memory task acquisition
… essential for brain functioning, as it enables fast signal propagation and synchronisation of neuronal impulses. Myelin sheaths are created by oligodendrocytes, which stem from oligodendrocyte precursor cells. During development neurons become myelinated, and this process can be modulated by …
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Development of GaAs pixel detectors
… on the two general purpose detectors: fast signal formation and readout, a high density of channels and radiation hardness of sensors and electronics are essential. Semiconductor pixel detectors, installed closest to the beam pipe in the innermost part of the tracking systems, must cope …
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Characterisation and calibration of silicon photomultipliers for next-generation space detectors
… to achieve a convenient trade-off between fast signal processing, good signal amplification, and low noise in order to obtain highquality scientific data. HERD (High Energy Cosmic Radiation Detection facility) is a future spaceborne particle detector that will employ SiPMs for precise …
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Reduced Rank Adaptive Filtering Applied to Interference Mitigation in Wideband CDMA Systems
… application of advanced reduced rank adaptive signal processing techniques for high data rate wireless code division multiple access (CDMA) communications systems. This is an important area of research in the field of wireless communications. Current systems are moving towards the use of …
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Characterization of the CMS pixel detectors
… radiation hardness of sensors and electronics, fast signal processing and a high granularity are the essential requirements. This thesis concentrates on the study of the suitability of two test stands, which are implemented to characterize the CMS pixel detectors: one is con-cerned with test …
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Cat-ology spectrally resolved neurophotonics in the mammalian brain and phantom studies
Physicists provide significant contributions to the field of Biology and Medical Sciences by applying basic physics principles to the field. Specifically, in this work, we probed the light-matter interactions in the NIR region to understand physiological processes in the mammalian brain. We sought …