Name
Abstract | ||
|---|---|---|
We present a software simulation and a hardware proof of concept for a compact low-power lightweight ultrasonic echolocation design that is capable of imaging a 120° field of view with a single ping. The sensor uses a single transmitter and a linear array of ten microphones, followed by a bank of eight spatiotemporal filters to determine the bearing angle of returned echoes. The sensor is capable of detecting multiple objects with a single omnidirectional ping, even if their echoes interfere with each other at the microphone array. The hardware implementation detects the bearing of nearby objects with an rms accuracy of 1.6° and can reliably detect a 70-cm-long 5-cm-diameter metal table leg at a range of 3 m. Stronger reflectors, such as building corners, can be reliably detected at a range of 9 m. |
Year | DOI | Venue |
|---|---|---|
2010 | 10.1109/TCSI.2010.2050229 | Circuits and Systems I: Regular Papers, IEEE Transactions |
Keywords | Field | DocType |
echo suppression,microphone arrays,remotely operated vehicles,microphones,multiple nearby targets,omnidirectional ping,single-ping ultrasonic scene mapping,size 5 cm,size 70 cm,spatiotemporal filters,transmitter,ultrasonic echolocation,unmanned aerial vehicles,Bearing estimation,echolocation,sonar,ultrasonic mapping,unmanned aerial vehicle (UAV) navigation and control | Field of view,Transmitter,Ultrasonic sensor,Ping (video games),Electronic engineering,Sonar,Artificial intelligence,Human echolocation,Computer vision,Omnidirectional antenna,Microphone array,Acoustics,Mathematics | Journal |
Volume | Issue | ISSN |
57 | 11 | 1549-8328 |
Citations | PageRank | References |
1 | 0.39 | 10 |
Authors | ||
2 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Orchard, G. | 1 | 24 | 3.77 |
| Ralph Etienne-Cummings | 2 | 1 | 0.39 |