Disturbance from luminance variation in the identification of visual sensors causes instability control system target tracking, which leads to field vision (FOV) motion and even missing. To solve this problem, a linear active disturbance reject controller (LADRC) is adopted tracking inertial stable platform (VTISP) for first time improve system’s robustness. As result, random can be smoothed by...

Digital Differentiator (DD) play a very important role to find out and approximate the first, second, or higher-order derivative of a digital signals. In this paper real-coded genetic algorithm (RCGA) is proposed for the design of finite impulse response (FIR) digital differentiator. The intent of this paper is to apply a real-coded genetic algorithm with arithmetic-average-bound-blend (AABBX) ...

As a new disk-shaped autonomous underwater vehicle (AUV), the helicopter (AUH) is devoted to subsea operations, usually diving into seabed and docking with system. Due motion control’s performance, AUH’s stability steady-state accuracy are affected remarkably while docking. Moreover, considering difficulties of hydrodynamic modeling AUHs, classical model-based control method unsuitable for AUHs...

We propose and experimentally demonstrate a tunable fractional order photonic differentiator using an on-chip electrically tuned Mach-Zehnder interferometer (MZI) structure. The phase shift at the resonant frequency of the MZI varies when applying different voltages, which can implement the fractional differentiation. Due to the large 3-dB bandwidth of the MZI, the differentiator is expected to...

In this paper, we derive the impulse response of the distributed order integrator/ differentiator and its asymptotic property by using the complex path integral. Based on the derived analytical impulse response, we present a technique to perform the discretization of the above distributed order integrator/differentiator. The derived asymptotic property can be applied to verify the feasibility o...

The previous work in [1], Tseng et al. have designed a fractional order differentiator using radial basis function by directly truncating the coefficients to approximate the fractional order derivative Dα of the given digital signal. This paper presents the designing of fractional order differentiator using radial basis function and window. Three design examples are given to illustrate that the...