Abstract
The authors formulate the wideband minimum variance distortionless response (MVDR) as the auto-focusing criterion. By emulation results of single-group and multi-group sources, they show that the optimal focusing angles can achieve the wideband MVDR criterion and result in minimum output power of the beamformer. The steepest descent algorithm is suggested for iteratively updating the focusing angles for beamformers to null both stationary and nonstationary interferences. For direction finding applications, the same auto-focusing procedures can be applied directly by presuming a dummy looking direction. Simulation results show that the performances of beamforming and direction finding applications are greatly improved by the proposed auto-focusing algorithm.
| Original language | English |
|---|---|
| Title of host publication | 1992 IEEE 6th SP Workshop on Statistical Signal and Array Processing, SSAP 1992 - Conference Proceedings |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 370-373 |
| Number of pages | 4 |
| ISBN (Electronic) | 0780305086, 9780780305083 |
| DOIs | |
| Publication status | Published - 1992 Jan 1 |
| Event | 6th IEEE SP Workshop on Statistical Signal and Array Processing, SSAP 1992 - Victoria, Canada Duration: 1992 Oct 7 → 1992 Oct 9 |
Publication series
| Name | 1992 IEEE 6th SP Workshop on Statistical Signal and Array Processing, SSAP 1992 - Conference Proceedings |
|---|
Conference
| Conference | 6th IEEE SP Workshop on Statistical Signal and Array Processing, SSAP 1992 |
|---|---|
| Country | Canada |
| City | Victoria |
| Period | 92-10-07 → 92-10-09 |
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All Science Journal Classification (ASJC) codes
- Signal Processing
- Statistics and Probability
Cite this
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Auto-focusing and tracking techniques for enhancement of coherent signal-subspace methods. / Tsai, Churng Jou; Yang, Jar-Ferr.
1992 IEEE 6th SP Workshop on Statistical Signal and Array Processing, SSAP 1992 - Conference Proceedings. Institute of Electrical and Electronics Engineers Inc., 1992. p. 370-373 246773 (1992 IEEE 6th SP Workshop on Statistical Signal and Array Processing, SSAP 1992 - Conference Proceedings).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
TY - GEN
T1 - Auto-focusing and tracking techniques for enhancement of coherent signal-subspace methods
AU - Tsai, Churng Jou
AU - Yang, Jar-Ferr
PY - 1992/1/1
Y1 - 1992/1/1
N2 - The authors formulate the wideband minimum variance distortionless response (MVDR) as the auto-focusing criterion. By emulation results of single-group and multi-group sources, they show that the optimal focusing angles can achieve the wideband MVDR criterion and result in minimum output power of the beamformer. The steepest descent algorithm is suggested for iteratively updating the focusing angles for beamformers to null both stationary and nonstationary interferences. For direction finding applications, the same auto-focusing procedures can be applied directly by presuming a dummy looking direction. Simulation results show that the performances of beamforming and direction finding applications are greatly improved by the proposed auto-focusing algorithm.
AB - The authors formulate the wideband minimum variance distortionless response (MVDR) as the auto-focusing criterion. By emulation results of single-group and multi-group sources, they show that the optimal focusing angles can achieve the wideband MVDR criterion and result in minimum output power of the beamformer. The steepest descent algorithm is suggested for iteratively updating the focusing angles for beamformers to null both stationary and nonstationary interferences. For direction finding applications, the same auto-focusing procedures can be applied directly by presuming a dummy looking direction. Simulation results show that the performances of beamforming and direction finding applications are greatly improved by the proposed auto-focusing algorithm.
UR - http://www.scopus.com/inward/record.url?scp=84905688374&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84905688374&partnerID=8YFLogxK
U2 - 10.1109/SSAP.1992.246773
DO - 10.1109/SSAP.1992.246773
M3 - Conference contribution
AN - SCOPUS:84905688374
T3 - 1992 IEEE 6th SP Workshop on Statistical Signal and Array Processing, SSAP 1992 - Conference Proceedings
SP - 370
EP - 373
BT - 1992 IEEE 6th SP Workshop on Statistical Signal and Array Processing, SSAP 1992 - Conference Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
ER -