Abstract
In this paper, we propose a new wideband direction-of-arrival (DOA) estimation method for wideband smart antennas based on Frequency-Domain Frequency-Invariant Beamformers (FDFIB). By appropriately designing the weights for frequency-domain beamformers at different frequencies, the frequency-invariant beam-patterns are obtained. These beamformers play a role as (wideband) spatial processor transforming signals from element-space to beam-space. After that, the narrowband DOA methods can be applied in beam-space to estimate DOAs. The method is able to operate with arbitrary antenna array and arbitrary wide bandwidth without preliminary DOA estimate. In addition, the proposed method provides low computational time and simple implementation. The performance of proposed method in comparison with conventional wideband methods is illustrated in simulation results.
| Original language | English |
|---|---|
| Pages (from-to) | 244-247 |
| Number of pages | 4 |
| Journal | IEEE Antennas and Propagation Society, AP-S International Symposium (Digest) |
| Volume | 3 |
| State | Published - 2003 |
| Event | 2003 IEEE International Antennas and Propagation Symposium and USNC/CNC/URSI North American Radio Science Meeting - Columbus, OH, United States Duration: 22 Jun 2003 → 27 Jun 2003 |
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