Improving the response of an accelerometer by using optimal filtering

Hernández, Wilmar

doi:10.1016/s0924-4247(00)00520-3

Cited by 36 publications

(29 citation statements)

References 8 publications

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“…integration, averaging) depend not only on the noise level, but also on the system sampling frequency and effects such as drift due to temperature fluctuations. A common method to minimise the errors associated with the accelerometer signal is the use of filtering [18][19][20]. Filtering can be used to reduce the errors associated with, for example, integration of a signal, in this case integration of the acceleration in order to obtain velocity and double integration to obtain position.…”

Section: Errors Associated With Wearable Devicesmentioning

confidence: 99%

Embedded programming and real-time signal processing of swimming strokes

et al. 2011

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The research outlined in this paper was conducted to allow real-time processing, transmission and presentation of data to swimming coaches and subsequently their swimmers in a training environment, focused on providing information relevant to strokes in free swimming. This was achieved using a wearable wireless sensor and embedded programming techniques, using accelerations involved in the swimming stroke to provide relevant features for coaches. Current methods used do not offer real-time response to coaches, which results in the lack of real-time feedback and significantly increased post-session analysis time. Filtering and signal processing algorithms are described here, which allow real-time data analysis to be embedded within a wireless sensor node. The system significantly reduces the time for processing acquired data and has delivered a novel monitoring device suitable for operation within the harsh environment of the pool.

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Section: Errors Associated With Wearable Devicesmentioning

confidence: 99%

Embedded programming and real-time signal processing of swimming strokes

et al. 2011

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“…In order to verify the proposed algorithm in the ALE system, two applications are conducted in the present study. In the first application, according to the previous work by Hernandez [14,15], ALE investigations are used for the vehicle speed sensor response problem. Today, research on vehicles faces the challenge of rapidly changing technology, which requires a solid foundation in and understanding of not only electric systems as a whole but how each sensor and system interacts with the electrical control system [16].…”

Section: Introductionmentioning

confidence: 99%

Design of an adaptive line enhancement system using a variable step-size affine-projection algorithm

Hung

2005

NDT & E International

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“…The second method, which is often used in the field of robotics and aviation, makes use of additional sensors like gyroscopes and sometimes, even the global positional system [6]. This kind of calibration, known as dynamic calibration, has the drawback that precise sensors are needed in order to obtain good calibration.…”

Section: Elements To Be Computedmentioning

confidence: 99%

“…In some cases, the noise filtering procedure has the disadvantage of requiring excessively elaborate and costly hardware, because some signals and their respective noise might share a similar frequency spectrum or the frequency bands of the signal of interest and the noise are very close [6].…”

Section: Elements To Be Computedmentioning

confidence: 99%

Automatic Calibration Procedure for a Robotic Manipulator Force Observer

García

Robertsson

Ortega

et al.

Proceedings of the 2005 IEEE International Conference on Robotics and Automation

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Abstract-In this paper, we propose a method for selfcalibration of a robotic manipulator force observer, which fuses information from force sensors and accelerometers in order to estimate the contact force exerted by a manipulator to its environment, by means of active motion. In robotic operation, during contact transition accelerometers and force sensors play a very important role and serve to overcome many of the difficulties of uncertain world models and unknown environments, limiting the domain of application of current robots used without external sensory provided. The calibration procedure helps to improve the performance as well as enhanced stability and robustness for the transition phase. A variety of accelerometers were used to validate the procedure. A dynamic model of the robot-grinding tool using the new sensors was obtained by system identification. An impedance control scheme was proposed to verify the improvement. The experiments were carried out on an ABB industrial robot with open control system architecture.

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Improving the response of an accelerometer by using optimal filtering

Cited by 36 publications

References 8 publications

Embedded programming and real-time signal processing of swimming strokes

Embedded programming and real-time signal processing of swimming strokes

Design of an adaptive line enhancement system using a variable step-size affine-projection algorithm

Automatic Calibration Procedure for a Robotic Manipulator Force Observer

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