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Sensors 2011, 11(12), 11464-11475; doi:10.3390/s111211464
Article

Ultrasonic Array for Obstacle Detection Based on CDMA with Kasami Codes

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Received: 20 October 2011; in revised form: 21 November 2011 / Accepted: 21 November 2011 / Published: 2 December 2011
(This article belongs to the Special Issue Sensorial Systems Applied to Intelligent Spaces)
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Abstract: This paper raises the design of an ultrasonic array for obstacle detection based on Phased Array (PA) techniques, which steers the acoustic beam through the environment by electronics rather than mechanical means. The transmission of every element in the array has been encoded, according to Code Division for Multiple Access (CDMA), which allows multiple beams to be transmitted simultaneously. All these features together enable a parallel scanning system which does not only improve the image rate but also achieves longer inspection distances in comparison with conventional PA techniques.
Keywords: ultrasound; Phased Array; CDMA; B-Scan images ultrasound; Phased Array; CDMA; B-Scan images
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Diego, C.; Hernández, Á.; Jiménez, A.; Álvarez, F.J.; Sanz, R.; Aparicio, J. Ultrasonic Array for Obstacle Detection Based on CDMA with Kasami Codes. Sensors 2011, 11, 11464-11475.

AMA Style

Diego C, Hernández Á, Jiménez A, Álvarez FJ, Sanz R, Aparicio J. Ultrasonic Array for Obstacle Detection Based on CDMA with Kasami Codes. Sensors. 2011; 11(12):11464-11475.

Chicago/Turabian Style

Diego, Cristina; Hernández, Álvaro; Jiménez, Ana; Álvarez, Fernando J.; Sanz, Rebeca; Aparicio, Joaqúın. 2011. "Ultrasonic Array for Obstacle Detection Based on CDMA with Kasami Codes." Sensors 11, no. 12: 11464-11475.


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