Sökning: "Nyquist-rate ADC"

Visar resultat 1 - 5 av 6 avhandlingar innehållade orden Nyquist-rate ADC.

1. 1. High-Speed Analog-to-Digital Converters in CMOS

   Författare :Siyu Tan; Integrerade elektroniksystem; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; A D converters; CMOS circuit design; ΔΣ ADC; high-speed ADC; Nyquist-rate ADC; oversampled ADC; SAR ADC; 5G;

   Sammanfattning : The Analog to Digital (A/D) Converters (ADC) are vital components in high-performance radio devices. In the receiver end, the signal received by the analog front-end can not be directly analyzed by the digital core, thus requiring high-performance ADC circuits acting as bridges connecting the analog and digital domain. LÄS MER

3. 2. Design of High-Speed Analog-to-Digital Converters using Low-Accuracy Components

   Författare :Timmy Sundström; Atila Alvandpour; Jan-Erik Eklund; Linköpings universitet; []
   Nyckelord :TECHNOLOGY; TEKNIKVETENSKAP;

   Sammanfattning : The scaling of CMOS technologies has increased the performance of general purpose processors and DSPs. However, analog circuits designed in the same process have not been able to utilize the scaling to the same extent, suffering from reduced voltage headroom and reduced analog gain. LÄS MER

4. 3. Design of High‐Speed, Low‐Power, Nyquist Analog‐to‐Digital Converters

   Författare :Timmy Sundström; Atila Alvandpour; Jan‐Erik Eklund; Linköpings universitet; []
   Nyckelord :TECHNOLOGY; TEKNIKVETENSKAP;

   Sammanfattning : The scaling of CMOS technologies has increased the performance of general purposeprocessors and DSPs while analog circuits designed in the same process have not been ableto utilize the process scaling to the same extent, suffering from reduced voltage headroom and reduced analog gain. In order to design efficient analog‐to‐digital converters in nanoscale CMOS there is a need to both understand the physical limitations as well as to develop new architectures and circuits that take full advantage of what the process has tooffer. LÄS MER

5. 4. Ultra Wideband: Communication and Localization

   Författare :Vijaya Parampalli Yajnanarayana; Peter Händel; Andreas Springer; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Ultra Wideband; TOA; Kalman Filter; Localization; Physical Layer Signaling; Location Aware Communication; Compressive Sampling; Sparse Signal Processing; Wireless Sensor Network; Electrical Engineering; Elektro- och systemteknik;

   Sammanfattning : The first part of this thesis develops methods for UWB communication. To meet the stringent regulatory body constraints, the physical layer signaling technique of the UWB transceiver should be optimally designed. LÄS MER

7. 5. Sub-Nyquist Sampling Impulse Radio UWB Receivers for the Internet-of-Things

   Författare :Qin Zhou; Hannu Tenhunen; Li-Rong Zheng; Qiang Chen; Kari Halonen; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Ultra-Wideband; impulse radio; receiver; energy detection; compressed sensing; sub-Nyquist sampling; Internet-of-Things; Informations- och kommunikationsteknik; Information and Communication Technology;

   Sammanfattning : In the era of Internet-of-Things, the demand for short range wireless links featured by low-power and low-cost, robust communication and high-precision positioning is growing rapidly. Impulse Radio Ultra-Wideband (IR-UWB) technology characterized by the transmission of sub-nanosecond pulses spanning up to several GHz band with extremely low power spectral density emerges as a promising candidate. LÄS MER