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We propose a new approach to an on-chip clock distribution scheme. It is based on distributed multi-GHz LC-tank oscillators generating local clocks. The oscillators are mutually coupled to align their frequencies and are further subharmonically injection-locked to a much lower frequency reference to align their phases. The final phase calibration is via adjusting their self-resonant frequencies. We...
An adaptive learning control strategy is developed for a class of bilinear parametric time-varying systems with mixed unknown time-varying and time-invariant parameters and unknown time-varying delay. The proposed control law includes a differential-difference coupled-type adaptive law used to estimate the unknown time-varying parameters and an adaptive repetitive learning control. By constructing...
A learning control scheme is designed for first-order bilinear parametric systems with unknown periodically time-varying delays. It is assumed that the common periodicity of unknown time-varying parameter, time-varying delay, and reference signal are known. By reconstructing the system equation, the time-varying delay is combined into a periodically time-varying vector which is estimated by a periodic...
The problem of stochastic robust stability of a class of stochastic neural networks with time-varying delays and parameter uncertainties is investigated in this paper. The parameter uncertainties are time-varying and norm-bounded. The time-delay factors are unknown and time-varying with known bounds. Based on Lyapunov-Krasovskii functional and stochastic analysis approaches, some new stability criteria...
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