jacobian_3d_comp.cat

用来实现三维阻抗及光学断层成像重建的matlab程序

function [Jrr,Jri,Jir,Jii] = jacobian_3d_comp(I,elec,vtx,simp,gnd_ind,mat_ref,no_pl,zc,IntGrad,v_f,df,tol,sym);

This function calculates the Jacobian matrices (with respect to conductivity) for the complex EIT system.



I        = The currents used
elec     = the electrodes matrix
vtx      = The vertices matrix
simp     = The simplices matrix
gnd_ind  = The ground index (node)
mat_ref  = The reference conductivity vector (complex)
no_pl    = The number of electrode planes 
zc       = The electrode contact impedance vector
IntGrad  = The integrals of the gradients 
v_f      = The measurement fields
df       = Measurements per current pattern as used in v_f 
Jrr      = The part of Jacobian which corresponds to a real dV after a real dsigma 
Jri      = The part of Jacobian which corresponds to a real dV after an imaginary dsigma
Jir      = The part of Jacobian which corresponds to an imaginary dV after a real dsigma
Jii      = The part of Jacobian which corresponds to an imaginary dV after an imaginary dsigma