Name
Abstract | ||
|---|---|---|
Local positioning systems significantly enhance the value of wireless sensor networks (WSN). This paper presents an integrated synthesizer for localization using frequency modulated continuous wave (FMCW) radar. The synthesizer is based on a fractional-n phase-locked loop (PLL) architecture. All components of the PLL are carefully designed with respect to their power consumption, and the digital parts are implemented in current-mode logic (CML). The complete synthesizer was manufactured in a 0.18µm SiGe BiCMOS process from IBM, and it consumes only 100mW, achieves a phase noise better than -117 dBc/Hz and has a silicon area of 1.15mm2. Due to its high integration level and its optimized design, the synthesizer achieves low power consumption and low phase noise that make it suitable for precise localization in mobile sensor nodes. Localization measurements in indoor environments with multi-path propagation showed mean distance errors about 10 cm. |
Year | DOI | Venue |
|---|---|---|
2009 | 10.1109/ICC.2009.5199053 | ICC |
Keywords | Field | DocType |
mobile sensor node,low phase noise,precise localization,wireless sensor network,phase noise,low power consumption,power consumption,integrated synthesizer,fractional-n synthesizer,localization measurement,complete synthesizer,local positioning system,optimal design,frequency modulation,multipath propagation,radar,logic design,phase lock loop,wireless sensor networks,phase locked loops,fmcw radar | Phase-locked loop,Local positioning system,Telecommunications,Computer science,Phase noise,Real-time computing,Electronic engineering,Frequency modulation,Current-mode logic,Wireless sensor network,Direct digital synthesizer,Phase frequency detector | Conference |
ISSN | Citations | PageRank |
1550-3607 | 1 | 0.44 |
References | Authors | |
4 | 3 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Thomas Ubmuller | 1 | 1 | 0.44 |
| Robert Weigel | 2 | 15 | 3.85 |
| Ralf Eickhoff | 3 | 65 | 12.37 |