This paper studies fixed-time tracking problems for stochastic nonlinear systems in strict-feedback form. Different from previous results, the practical bounded theorem is given. The unknown functions of are approximated by Fuzzy logic system (FLS) which has a universal approximation. Then using back-stepping method, novel adaptive fuzzy controller designed based on theorem. states guaranteed t...

A composite back-stepping sliding mode controller is explored in the paper to address under-actuated, input saturated, and time-varying disturbances, as well model-dependent issues that bother path tracking control of unmanned agricultural tractors. Specifically, error model introduced. The extended state observers (ESO) with parameters are employed handle lump disturbances resulting from exter...

This paper introduces two improved control algorithms for DC-DC converters. The first one is called “Non-Adaptive Modified Back-Stepping Control” (M-BSC) and the second “Adaptive (AM-BSC). Both proposed schemes allow to increase robustness load input voltage variations make converter less sensitive disturbances concerning available in literature. aims keep output at desired value despite any ch...

In this paper, we will propose the controller of a 2-DOF head in snake robot for effective image data reading when is driving, and present an error-based adaptive robust radial base function neural network back-stepping controller. The system nonlinear system, there are unmeasurable disturbances that occur while driving. To solve problem, use basis to compensate improve steady state. order furt...

This study was aimed at examining the gender and age-related differences of dynamic balance based on four stepping tests for the elderly. One hundred and eleven healthy subjects aged 60-85 were classified into four age groups (60-64, 65-69, 70-74, and 75-85) to examine age-related differences. They conducted stepping motions lasting 20-sec, including both-leg stepping right/left, both-leg stepp...

This study aimed to examine the relationships among various stepping parameters, sex, and age in the elderly. Healthy elderly Japanese individuals 60-85 years old (50 males and 61 females) performed 4 types of stepping motions for 20 s. Stepping motions included bilateral stepping (back/forth and right/left) and unilateral stepping (back/forth and right/left). The number of steps, the average c...

Increasing DC loads along with DC nature of distributed energy resources (DERs) raises interest to DC microgrids. Conventional droop/non-droop power-sharing in microgrids suffers from load dependent voltage deviation, slow transient response, and requires the parameters of the loads, system and DERs connection status. In this paper, a new nonlinear decentralized back-stepping control strategy f...