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High-Speed Delta-Sigma Data Converters For Next-Generation Wireless Communication, Sakkarapani Balagopal
High-Speed Delta-Sigma Data Converters For Next-Generation Wireless Communication, Sakkarapani Balagopal
Boise State University Theses and Dissertations
In recent years, Continuous-time Delta-Sigma(CT-ΔΣ) analog-to-digital converters (ADCs) have been extensively investigated for their use in wireless receivers to achieve conversion bandwidths greater than 15 MHz and higher resolution of 10 to 14 bits. This dissertation investigates the current state-of-the-art high-speed single-bit and multi-bit Continuous-time Delta-Sigma modulator (CT-ΔΣM) designs and their limitations due to circuit non-idealities in achieving the performance required for next-generation wireless standards. Also, we presented complete architectural and circuit details of a high-speed single-bit and multi-bit CT-ΔΣM operating at a sampling rate of 1.25 GSps and 640 MSps respectively (the highest reported sampling rate in a 0.13 …
Seeking Cleaner Air - Accessible Air Quality Monitoring And Event Diagnosis, James Allen Hall Jr.
Seeking Cleaner Air - Accessible Air Quality Monitoring And Event Diagnosis, James Allen Hall Jr.
Boise State University Theses and Dissertations
Airborne particulate matter has been shown to be associated with morbidity and mortality, and can have a detrimental impact on sensitive materials and processes. Understanding the levels and movements of particulate matter in an enclosed space can lead to a reduction in the negative consequences of poor air quality. A system of environmental sensors including particulate matter, selected gases, and other atmospheric factors can be used to provide a real-time assessment of air quality. This assessment can be used to assist in the diagnosis of the source of particulate matter. This dissertation describes the creation of a framework for the …