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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Johnson, G. Modugno, E. |
| Copyright Year | 1987 |
| Description | Author affiliation: IBM Corporation, Manassas, Virginia (Johnson, G.) |
| Abstract | The passive determination of conical-bearing angle from a line array is routinely accomplished by estimating the differences in the arrival times of an acoustic wavefront along the aperture. The conversion from a conical bearing angle to a true bearing (azimuth) angle requires an estimate of the depression/elevation angle of the source. This paper shows that the observation of time-delay estimates over a known rotation of the line array is an effective procedure for true angle estimation. Theoretical performance analysis and Monte Carlo simulation results are presented for a broad class of true angle estimation algorithms. This includes the optimal algorithm which utilizes all of the available time-delay information over the array rotation. This work has significant implications regarding source localization from line arrays. |
| Starting Page | 439 |
| Ending Page | 442 |
| File Size | 125234 |
| Page Count | 4 |
| File Format | |
| DOI | 10.1109/ICASSP.1987.1169738 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 1987-04-06 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Azimuth Apertures Delay effects Delay estimation Acoustic arrays Acoustic waves Performance analysis Acoustic beams Difference equations Geometry |
| Content Type | Text |
| Resource Type | Article |
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