Time-reversal UWB-IR considering channel estimation error.
Hiroki IshikawaAtsushi MatsumotoRyohei NakamuraAkihiro KajiwaraPublished in: RWS (2013)
Keyphrases
- estimation error
- ultra wideband
- information retrieval
- communication systems
- multipath
- estimation accuracy
- error rate
- average error
- standard deviation
- information retrieval systems
- short range
- wireless channels
- wireless systems
- step size
- covariance matrix
- ofdm system
- orthogonal frequency division multiplexing
- ultra wide band
- approximation error
- query expansion
- channel estimation
- face recognition
- multi band
- long range
- test collection
- relevance feedback