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 9 of 9 for “"analog to digital converters (ADC)"”.
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BER-optimal analog-to-digital converters for communication links
In this thesis, we propose BER-optimal analog-to-digital converters (ADC) where quantization levels and thresholds are set non-uniformly to minimize the bit-error rate (BER). This is in contrast to present-day ADCs which act as transparent waveform preservers. We define the ADC shaping gain metric …
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Receiver Implementations for a CDMA Cellular System
… personal communications services (PCS). Several digital technologies have been proposed to replace overburdened analog systems. One system that has gained increasing popularity in North America is a 1.25 MHz Code Division Multiple Access (CDMA) system (IS-95). In CDMA systems, multiple access …
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2GHz W-CDMA Radio Transceiver
… the functions of modulation and demodulation to enable transmitting and receiving digital information through the air link. The radio comprises one transmitter in conjunction with transmit power control (TPC), two independent receivers in conjunction with automatic gain control (AGC) and …
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Hardware Security with Electromagnetic Side Channels
… a novel quantum diamond microscope are used to protect the integrated circuit supply chain by detecting hardware trojans with high spatial resolution, a wide field of view, and high sensitivity. A hardware trojan detection framework is developed that allows for automated and unbiased …
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Oversampled pipline A/D converters with mismatch shaping
This thesis introduces a technique to improve the linearity of pipeline analog to digital converters (ADC). Through a combination of oversampling and mismatch shaping, the distortion introduced by component mismatch is modulated out of the input signal frequency band, where it can be removed by …
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A Continuous-Time Pipeline ADC with Reduced Sensitivity to Clock Jitter
… as cellular base stations. Such systems require analog-to-digital converters (ADC) with a high dynamic range over a large digitization bandwidth (> 500 MHz). For high-speed high-resolution ADCs with an upfront sampler, the clock jitter poses a fundamental bottleneck for the maximum achievable …
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Message passing algorithms - methods and applications
… by considering the marginalization problem on factor graphs, which is often solved or approximated with Sum-Product belief propagation (BP) over the edges of the factor graph. For the case of sensor networks, where the conservation of energy is of critical importance and communication overhead can …
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Low-power high-performance SAR ADC design with digital calibration techniques
… successive-approximation-register (SAR) analog-to-digital converters (ADCs) using distinct digital background calibration techniques under the framework of a generalized code-domain linear equalizer. These digital calibration techniques effectively and efficiently remove the static …
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Design and implementation of the Hybrid Detector for Microdosimetry (HDM): Challenges in readout architecture and experimental results
… of cancer, including recurrent cancers, compared to conventional radiation. Despite these promising results, there are still several treatment uncertainties related to biological and physical processes that prevent the full exploitation of particle therapy. Among the physical characterizations, it …