The focus of this paper is the estimation a delay between two signals. Such problem common in signal processing and particularly challenging when non-stationary nature. Our proposed solution based on an all-pass filter framework comprising elements: time equivalent to filtering can be represented terms ratio finite impulse response (FIR) its reversal. Using these elements, we propose adaptive a...

In this manuscript, we analyze the solution for class of linear and nonlinear Caputo fractional Volterra Fredholm integro-differential equations with time varying delay. Also, demonstrate stability analysis these equations. Our paper provides a convergence semi-analytical approximate method It would be desirable to point out results.