The Robotics Institute

Carnegie Mellon Robotics Institute

In conventional ultrasonic pulse-echo sensing, accurate target bearing measurement is often regarded as difficult due to the wide beam angle of ultrasonic transducers. However, measurement of the accurate angle is also very useful for many robot motions. We are developing a new sonar ring sensor which is possible to measure the accurate angle of the reflecting points. In this system, multiple transmitters and receivers are driven simultaneously, and differences of time of flight are used for measuring the accurate angle. This paper describes a simple wave memory system for detecting multiple echoes.

Notes

Note: (in Japanese)

Text Reference

Teruko Yata, A.Ohya, and S.Yuta, "A 30ch 1bit Ultrasonic Echo Wave Memory System for Detecting Multiple Objects - a mobile robot sonar ring sensor system measuring the bearing angle to the reflecting points: the 5th rep.," Proceedings of the 16th RSJ conference, September, 1998, pp. 915 - 916.

BibTeX Reference

@inproceedings{Yata_1998_4023,
   author = "Teruko Yata and A.Ohya and S.Yuta",
   title = "A 30ch 1bit Ultrasonic Echo Wave Memory System for Detecting Multiple Objects - a mobile robot sonar ring sensor system measuring the bearing angle to the reflecting points: the 5th rep.",
   booktitle = "Proceedings of the 16th RSJ conference",
   pages = "915 - 916",
   month = "September",
   year = "1998",
   Notes = "(in Japanese)"
}

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