A Pulse Generator for UWB-IR Based on a Relaxation Oscillator.
Jorge R. FernandesHugo B. GoncalvesLuís Bica OliveiraManuel Medeiros SilvaPublished in: IEEE Trans. Circuits Syst. II Express Briefs (2008)
Keyphrases
- ultra wideband
- communication systems
- information retrieval
- multipath
- short range
- bit error rate
- text retrieval
- long range
- differential equations
- document centric
- web information retrieval
- convex relaxation
- lognormal distribution
- ir evaluation
- retrieval effectiveness
- end to end
- information retrieval systems
- information access
- evaluation measures
- wireless communication
- wireless systems
- probabilistic relaxation
- document collections