An Efficient and Accurate 2W-PE Method for Solving Spatial Field Strength Based on CVNN and PINN

Algorithm 1

The calculation method of the cost function value of the PINN.

	Input: z: accuracy of meshing in the x-direction/z-direction
	: total field at the start of obstacle calculated by MoM
	: total field at the end of obstacle calculated by MoM
	: threshold of iterative convergence
	: maximum number of iterations
	: coefficients of upper/lower impedance boundary condition
	Output: : the cost value for back propagation
	Initialize: ;      //initial fields to be solved
	;       //initial number of iterations
	;      //initial error of iterations
	//intermediate variable
	While or do
	fordo
	fordo
	end
	end
	end
	return