id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
aiti-11232	Xian Wen Sim; Sie Long Kek; Sy Yi Sim; Jiao Li	State Estimation and Optimal Control of Four-Tank System with Stochastic Approximation Approach	2023	12	.pdf	application/pdf	6056	268	64	The output variable � = ���, ���� is defined by ( ) ( )y k h x k=    (24) where the output measurement channel ℎ = �ℎ�, ℎ���: ℜ� → ℜ� is 1 1 h x= (25) 2 2 h x= (26) which represents the solution for the liquid level of tank 1 and 2 as ��� � and ��� �, respectively. Denote ��, ��, ��, and �� as the liquid level of tanks 1, 2, 3, and 4, respectively, while �� and �� are the flow parameters of pumps 1 and 2. Fig.	cache/aiti-11232.pdf	txt/aiti-11232.txt