Sökning: "Jian Chen"

Hittade 4 avhandlingar innehållade orden Jian Chen.

1. 1. Low Noise Oscillator in ADPLL toward Direct-to-RF All-digital Polar Transmitter

   Författare :Jian Chen; Li-Rong Zheng; Fredrik Jonsson; Hannu Tenhunen; Georges Gielen; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; all-digital; digitally-intensive; frequency modualtion; phase modulation; amplitude modulation; polar; transmitter; oscillator; digital controled oscillator; DCO; VCO; voltage controled oscillator; class-C oscillator; class-D PA; ADPLL; phase noise; RF; CMOS.;

   Sammanfattning : In recent years all-digital or digitally-intensive RF transmitters (TX) have attracted great attention in both literature and industry. The motivation is to implement RF circuits in a manner suiting advanced nanometer CMOS processes. To achieve that, information is encoded in the time-domain rather than voltage amplitude. LÄS MER

3. 2. System-Level Techniques for Temperature-Aware Energy Optimization

   Författare :Min Bao; Zebo Peng; Eles Petru; Jian-Jia Chen; Linköpings universitet; []
   Nyckelord :Temperature-Aware Design; Energy Optimization; System-Level Design; Embedded Systems; TECHNOLOGY; TEKNIKVETENSKAP;

   Sammanfattning : Energy consumption has become one of the main design constraints in today’s integrated circuits. Techniques for energy optimization, from circuit-level up to system-level, have been intensively researched. LÄS MER

4. 3. Efficient Resource Management for Many-Core based Industrial Real-Time Systems

   Författare :Matthias Becker; Thomas Nolte; Moris Behnam; Kristian Sandström; Jian-Jia Chen; Mälardalens högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Computer Science; datavetenskap;

   Sammanfattning : The increased complexity of today’s industrial embedded systems stands inneed for more computational power while most systems must adhere to a restrictedenergy consumption, either to prolong the battery lifetime or to reduceoperational costs. The many-core processor is therefore a natural fit. LÄS MER

5. 4. System-Level Analysis and Design under Uncertainty

   Författare :Ivan Ukhov; Zebo Peng; Petru Ion Eles; Jian-Jia Chen; Linköpings universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

   Sammanfattning : One major problem for the designer of electronic systems is the presence of uncertainty, which is due to phenomena such as process and workload variation. Very often, uncertainty is inherent and inevitable. If ignored, it can lead to degradation of the quality of service in the best case and to severe faults or burnt silicon in the worst case. LÄS MER