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An attitude algorithm from output vector of accelerometer was proposed with the assumption that the direction of external acceleration is precisely localized or relatively localized on a certain plane. Simulation and experimental results verify that the estimation performance of the proposed method is better than that of the conventional method.
In this study we describe walking speed estimation method using only temporal parameters of gait. Further, this method can be adopted for automatic speed adaptation during walking on treadmill which is useful for gait rehabilitation process and also for navigation in virtual reality environment. The proposed speed estimation method is based on two temporal parameters during stance phase: time duration...
This paper deals with a new passive homing guidance law for a stationary or a slowly moving target using sliding mode control technique. The proposed guidance law is designed in such a way of increasing the target observability. In addition, it can control a terminal impact angle to maximize warhead effect. The main idea is that we design the nonlinear sliding surface which makes an oscillatory missile...
Decomposition of acceleration was investigated as an alternative to commonly used direct spectral analysis of measured acceleration or angular velocity for tremor quantification. Orientation estimation algorithm was devised to decompose the measured acceleration into inertial acceleration caused by sensor movement in inertial reference frame and gravitational artifact. Resulting signals, beside measured...
Diagnosis of the underlying causes of widespread spinal pathologies such as back pain and whiplash remains problematic. Many studies suggest that segmental instability may occur and that the study of the intervertebral kinematics can be a valuable, objective method to assess spinal segment functionality. Direct measurement of the intervertebral kinematics results very invasive and unpractical; as...
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