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A sonar ring with continuous matched filtering and dynamically switched templates

  • Damien C. Browne (a1) and Lindsay Kleeman (a1)

Summary

Matched filtering optimally estimates the arrival time for a sonar sensor by correlating received signals with templates. This paper presents a sonar ring with continuous matched filtering on 48 receiver channels sampled at 500kHz. The design dynamically switches the matched filter templates to account for pulse shape variations with range. To achieve real-time, low-latency and optimal performance, processing is implemented on an field-programmable gate array (FPGA) transmitting sonar pulses (2 periods of a 45kHz sine wave) at repetition rate of 30-Hz to 5.7-m range. The paper describes the removal of secondary peaks of the correlation output of matched filtering and template selection. Results include sonar maps, accuracy measurements and localization of weak targets.

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*Corresponding author. E-mail: damien_browne@hotmail.com

References

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1.Browne, D. and Kleeman, L., “An Advanced Sonar Ring Design with 48 Channels of Continuous Echo Processing using Matched Filters,” In: Proceedings of IEEE/RSJ International Conference on Intelligent Robots and Systems, 2009 (IROS 2009), St. Louis, MO, USA (Oct. 10–15, 2009) pp. 40404046.
2.Browne, D., “Bearing Calculation of a Single Emitter Sonar Ring,” Technical Report 1 (Department of Electrical and Computer System Engineering, Monash University, Australia, June 2011).
3.Cristian, F., “Probabilistic clock synchronization,” Distrib. Comput. 3, 146158 (1989).
4.Diosi, A. and Kleeman, L., “Advanced Sonar and Laser Range Finder Fusion for Simultaneous Localization and Mapping,” In: Proceedings of 2004 IEEE/RSJ International Conference on Intelligent Robots and Systems, IROS 2004, Sendai, Japan (Sep. 28–Oct. 2, 2004) pp. 18541859.
5.Fazli, S. and Kleeman, L., “A Low Sample Rate Real Time Advanced Sonar Ring,” Proceedings of Australasian Conference on Robotics and Automation 2004 (2004).
6.Fazli, S. and Kleeman, L., “A Real Time Advanced Sonar Ring with Simultaneous Firing,” In: Proceedings of IEEE/RSJ International Conference on Intelligent Robots and Systems, 2004 (IROS 2004) Sendai, Japan, vol. 2 (Sep. 28–Oct. 2, 2004), pp. 18721877.
7.Kleeman, L., Advanced Sonar and Odometry Error Modeling for Simultaneous Localisation and Map Building,” In: Proceedings of the IEEE/RSJ International Conference on Intelligent Robots and Systems, 2003, Las Vegas USA, vol. 1 (Oct. 2003) pp. 699704.
8.Kleeman, L. and Kuc, R., “Mobile robot sonar for target localization and classification,” Int. J. Robot. Res. 14, 295318 (1995).
9.Kleeman, L. and Ohya, A., “The Design of a Transmitter with a Parabolic Conical Reflector for a Sonar Ring,” Australasian Conference on Robotics and Automation 2006 (2006).
10.Longbottom, Roy, “Roy Longbottom's PC benchmark collection,” available at: http://www.roylongbottom.org.uk/ (Jul. 2010).
11.Ming, A., Kajihara, K., Kajitani, M. and Shimojo, M., “Development of a Rapid Obstacle Sensing System using Sonar Ring for Mobile Robot,” In: Proceedings of IEEE International Conference on Robotics and Automation, 2002 (ICRA '02), Washington, DC, USA, vol. 3 (May 11–15, 2002) pp. 30683073.
12.MURATA, Estd01 Data Sheet (MURATA, Japan, 2006).
13.Reijniers, J. and Peremans, H., “Biomimetic sonar system performing spectrum-based localization,” IEEE Trans. Robot. 23 (6), 11511159 (2007).
14.Tungadi, F. and Kleeman, L., “Time Synchronisation and Calibration of Odometry and Range Sensors for High-Speed Mobile Robot Mapping,” Australasian Conference on Robotics and Automation, 2008 (2008).
15.Tungadi, F. and Kleeman, L., “Loop Exploration for Slam with Fusion of Advanced Sonar Features and Laser Polar Scan Matching,” In: Proceedings of IEEE/RSJ International Conference on Intelligent Robots and Systems, 2009 (IROS 2009) (Oct. 2009) pp. 388–394.
16.Walter, S., “The Sonar Ring: Obstacle Detection for a Mobile Robot,” In: Proceedings of IEEE International Conference on Robotics and Automation 1987, vol. 4 (1987), pp. 1574–1579.
17.Woodward, P. M., Probability and Information Theory with Applications to Radar (McGraw-Hill, New York, 1953).
18.Xie, Z., Li, Z., Sugiura, Y., Ming, A. and Shimojo, M., “Simultaneously Firing Sonar Ring Based High-Speed Navigation for Non-holonomic Mobile Robots in Unstructured Environments,” In: Proceedings of International Conference on Intelligent Mechatronics and Automation, 2004, Chengdu, China (Aug. 26–31, 2004) pp. 650655.
19.Yamauchi, B., “All-Weather Perception for Man-Portable Robots Using Ultra-Wideband Radar,” Proceedings of IEEE International Conference on Robotics and Automation (ICRA 2010), Anchorage, Alaska, USA (May 3–8, 2010).

Keywords

A sonar ring with continuous matched filtering and dynamically switched templates

  • Damien C. Browne (a1) and Lindsay Kleeman (a1)

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