Projects per year
Abstract
Estimation of the incident waveform directions, or direction of arrival (DOA) estimation, is an essential problem in sonar array processing. A sonar array usually consists of a large number of elements, and the associated data processing complexity is extensive. An approach to reduce the computation is to map the data from full-dimension element space into a lower dimension beam space, through a linear transformation prior to signal processing. In this paper, a new algorithm for designing beam space transformation with interference suppression is proposed. This approach optimizes in-sector estimation accuracy and out-of-sector interference rejection capabilities simultaneously and yields superior beam space DOA estimates with significantly reduced computation load.
Original language | English |
---|---|
Pages | 702-705 |
Number of pages | 4 |
DOIs | |
Publication status | Published - 20 Sep 2009 |
Event | 2009 IEEE Ultrasonics Symposium - Rome, Italy Duration: 20 Sep 2009 → 23 Sep 2009 |
Conference
Conference | 2009 IEEE Ultrasonics Symposium |
---|---|
Country/Territory | Italy |
City | Rome |
Period | 20/09/09 → 23/09/09 |
Keywords
- array signal processing
- data reduction
- direction-of-arrival estimation
- genetic algorithms
- sonar arrays
- sonar signal processing
- accurate target discrimination
- beamspace transformation
Projects
- 1 Finished
-
PGII: Generation, Detection & Analysis of Optimally Coded Ultrasonic Waveforms
Gachagan, A., Hayward, G., Mulholland, A. & Pierce, G.
EPSRC (Engineering and Physical Sciences Research Council)
9/06/08 → 9/09/12
Project: Research