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2025-06-10 08:59:02

Stochastic Gradient-Descent Calibration of Pyragas Delayed-Feedback Control for Chaos Suppression in the Sprott Circuit
Adib Kabir, Onil Morshed, Oishi Kabir
arxiv.org/abs/2506.06639

Stochastic Gradient-Descent Calibration of Pyragas Delayed-Feedback Control for Chaos Suppression in the Sprott Circuit
This paper investigates chaos control in the Sprott circuit, a minimal electronic system exhibiting complex nonlinear dynamics. Using the third-order nonlinear differential equation from Kaveh Merat paper, we model the circuit and implement delayed feedback control to suppress chaos. Experimental voltage data were extracted from published figures via WebPlotDigitizer. Then we explore two calibration techniques: Minimizing sum of squared errors (SSE), and stochastic gradient descent (SGD) with f…