A comparative study on the processing of ultrasonic arc maps

Date
2008-08
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Source Title
European Signal Processing Conference
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Publisher
IEEE
Volume
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Pages
1 - 5
Language
English
Type
Conference Paper
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Abstract

The directional maximum (DM) technique for processing ultrasonic arc maps is proposed and compared to previously existing techniques. The method processes ultrasonic arc maps directionally to extract the map of the environment and overcome the intrinsic angular uncertainty of ultrasonic sensors. It also eliminates noise and cross-talk related misreadings successfully. The comparison is based on experimental data and three complementary error criteria. The DM technique offers a very good compromise between mean absolute error and correct detection rate, with a processing time less than tenth of a second. It is superior to existing techniques in range accuracy and in eliminating artifacts, resulting in the best overall performance. The results indicate several trade-offs in the choice of ultrasonic arc-map processing techniques.

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Keywords
Angular uncertainty, Comparative studies, Detection rates, Experimental data, Mean absolute error, Processing technique, Processing time, Signal processing, Conformal mapping
Citation
Published Version (Please cite this version)