Abstract
In recent year, in the automobile industry, advanced driving and parking assistance systems have been developed.The ultrasound sensor system used in such a system is currently only a simple distance mesurement.Iin this paper,as ahigh-performance ultrasound sensor system aim for used a more advanced parking assist system, we reserch on an ultrasound sensor system that can roughly classify the shape of a target object by using frequency-modulated ultrasound wave, frequrncy analysis of refrected waves, and a self-organaizing map(SOM).
Highlights
In recent years, with the remarkable development of computer and sensor technology, driving assistance and automation technology such as automatic driving technology, automatic braking system, and parking assist system are attracting attention and are being put into practical use in the automobile industry
Ultrasound sensor systems that are currently in practical use are limited to those that calculate the distance to an object based on the reflection time of the ultrasound waves (1,2)
In this paper, we conducted basic research on an ultrasound sensor system that roughly categorizes the shapes of target objects by radiating frequency-modulated ultrasound waves and using frequency analysis of the reflected waves and a self-organizing map (SOM)
Summary
With the remarkable development of computer and sensor technology, driving assistance and automation technology such as automatic driving technology, automatic braking system, and parking assist system are attracting attention and are being put into practical use in the automobile industry. Ultrasound sensor systems that are currently in practical use are limited to those that calculate the distance to an object based on the reflection time of the ultrasound waves (1,2). It is limited to those that measure the distance to the target object based on the reflection time until it returns to the sensor system. The development of a highly functional ultrasound sensor system is desired for the purpose of making the ultrasound sensor system currently used only for simple applications compatible with advanced driving assistance such as parking assistance. In this paper, we conducted basic research on an ultrasound sensor system that roughly categorizes the shapes of target objects by radiating frequency-modulated ultrasound waves and using frequency analysis of the reflected waves and a self-organizing map (SOM)
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