Stochastic gradient descent (SGD) algorithm and its variations have been effectively used to optimize neural network models. However, with the rapid growth of big data deep learning, SGD is no longer most suitable choice due natural behavior sequential optimization error function. This has led development parallel algorithms, such as asynchronous (ASGD) synchronous (SSGD) train networks. it int...

Real-time hybrid simulation represents a powerful technique capable of evaluating the structural dynamic performance by combining the physical simulation of a complex and rate-dependent portion of a structure with the numerical simulation of the remaining portion of the same structure. Initially, this paper shows how the stability of real-time hybrid simulation with time delay depends both on c...

SUMMARY: Real-time hybrid simulation (RHS) is a powerful technique to evaluate structural dynamic performance by combining physical simulation of complicated and rate-dependent portion of a structure and numerical simulation of the rest portion of the same structure. This paper shows that the stability of RHS with time delay is not only related to compensation methods but also to the integratio...

The effect of sub-channel delay on bandwidth synthesis is investigated to eliminate the “phase step” phenomenon in bandwidth synthesis during the test of CDBE (Chinese Digital Backend). Through formula derivation, we realize that sub-channel delay may cause phase discontinuity between different sub-channels. Theoretical analysis shows that sub-channel delay can induce bandwidth synthesis error ...

This paper presents effectiveness of cut off frequency of a low pass filter of communication disturbance observer (CDOB). This compensation technique requires system model only and not time model. So we can apply this compensation technique to both constant and variable time delay. In this paper, the validity of compensation technique with simulated result has been shown.

This paper proposes a control framework that addresses the destabilizing effect of communication time delays and system uncertainties in telerobotics, in the presence of force feedback. Force feedback is necessary to obtain transparency, which is providing the human operator as close a feel as possible of the environment where the slave robot is operating. Achieving stability and providing tran...

-This paper addresses compensation of dealys within a multi-input-multi-output discrete-time feedback loop for application to real-time distributed control systems. The delay compensation algorithm, formulated, in this paper, is an extension of the standard loop transfer recovery (LTR) procedure from one-step prediction to the general case of p-step prediction ( p > l ) . It is shown that the s...

We demonstrate the theoretical and experimental results of using a single prism in the rapid-scanning optical delay line of an optical coherence tomography (OCT) system for compensating the mismatches of the firstand second-order group delay dispersion (GDD) between the reference and sample arms. The analytical expressions for the firstand second-order GDD are derived based on the typically des...