Robust High-Accuracy Ultrasonic Range Measurement System

Saad, Mohamed; Bleakley, Chris J.; Dobson, Simon

doi:10.1109/tim.2011.2128950

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Introduction3

) Aoa-based Md-beacon Distance Estimation1

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2012

2022

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Cited by 78 publications

(51 citation statements)

References 32 publications

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“…This ToA estimate can be refined by adjusting the ToA estimate according to the phase difference between the carrier of the received signal and the carrier of the reference signal delayed by the samplelevel ToA estimate [37]. This phase adjustment leads to a ToA estimate with sub-sample accuracy.…”

Section: ) Aoa-based Md-beacon Distance Estimationmentioning

confidence: 99%

High-Accuracy Reference-Free Ultrasonic Location Estimation

Saad

Bleakley

Ballal

et al. 2012

IEEE Trans. Instrum. Meas.

Self Cite

100

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Section: ) Aoa-based Md-beacon Distance Estimationmentioning

confidence: 99%

High-Accuracy Reference-Free Ultrasonic Location Estimation

Saad

Bleakley

Ballal

et al. 2012

IEEE Trans. Instrum. Meas.

Self Cite

100

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“…Commonly used sensors for environmental perception include infrared sensor, ultrasonic sensor, 4 visual sensor, 5 laser range finder, 6 and so on. Infrared sensor is often used to identify closer obstacles for emergency due to its short detection range.…”

Section: Introductionmentioning

confidence: 99%

A laser-based multi-robot collision avoidance approach in unknown environments

Cao

et al. 2018

International Journal of Advanced Robotic Systems

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As a fundamental problem, collision avoidance for multiple robots still need further investigation, especially for many robots aggregating in a tight space. In this article, a laser-based collision avoidance approach is proposed in complex multi-robot environments. The laser data is analyzed and processed in terms of distance thresholding, safe passageway analysis, obstacles repulsion, goal position attraction, and inter-robot safety. Specifically, the safe passageway analysis is used to remove unsafe directions effectively, and inter-robot safety processing reduces the possibility of being selected for the directions affected by the neighboring robots. On this basis, an optimized decision is made to guarantee that the robots achieve collision-free motions even in crowded environments. The validity of the proposed approach is verified by simulations.

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“…A lower body reaction test was presented previously [6] which utilized a force plate to quantify onset of movement.…”

Section: Introductionmentioning

confidence: 99%