jacobian_3d.cat

用来实现三维阻抗及光学断层成像重建的matlab程序

function [J] = jacobian_3d(I,elec,vtx,simp,gnd_ind,mat_ref,zc,IntGrad,v_f,df,tol,sym);

This function calculates the Jacobian (sensitivity) matrix of the 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
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 
tol      = Tolerance 
J        = The Jacobian (sensitivity) matrix with respect to conductivity