Passive ultrasonic apparatus for three-dimensional position

Liang Yu; Fangfei Lin; Ding Ma; Mingji Yang; Haibin Wu

doi:10.1117/12.2014557

31 January 2013 Passive ultrasonic apparatus for three-dimensional position

Liang Yu, Fangfei Lin, Ding Ma, Mingji Yang, Haibin Wu

Proceedings Volume 8759, Eighth International Symposium on Precision Engineering Measurement and Instrumentation; 875917 (2013) https://doi.org/10.1117/12.2014557
Event: International Symposium on Precision Engineering Measurement and Instrumentation 2012, 2012, Chengdu, China

Abstract

In this paper, a passive ultrasonic method for 3-D position is introduced, based on TDOA (Time Difference of Arrival). In the method, the distances between the ultrasonic source and receivers are calculated through measuring the differences between of the arrival times when the ultrasonic from the measured target reaches the ultrasonic receivers in different location, and the 3-D position is realized. Our method avoids the disadvantages of the current approaches: exactly recoding times of the ultrasonic emission and receipt, and the synchronization timing of the emitter and receiver. In this method, the 3-D position can be realized as long as the target has the ultrasonic source that can be accepted by the receivers. Thus, this method could achieve 3-D position of the non-cooperative targets, which can be applied in broader fields, especially in military. This paper not only established the mathematical model of the method and analyzed its design keys, but also came up with the design example as well as its simulation. Both of the theoretical analysis and experimental results show that position range is 50m(x)×50m(y)×50m(z) and position accuracy is 0.1m(x)×0.1m(y)×0.3m(z). So the method and apparatus are feasible and effective.

Citation Download Citation

Liang Yu, Fangfei Lin, Ding Ma, Mingji Yang, and Haibin Wu "Passive ultrasonic apparatus for three-dimensional position", Proc. SPIE 8759, Eighth International Symposium on Precision Engineering Measurement and Instrumentation, 875917 (31 January 2013); https://doi.org/10.1117/12.2014557

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KEYWORDS

Ultrasonics

Receivers

3D modeling

3D acquisition

Time metrology

Mathematical modeling

Instrument modeling

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