Algorithm 4: Compute the linearized matrices,$\widehat{C}$ and $\widehat{D}$

$clear \widehat{D}$ $\widehat{D}=D\left[17\right]\ast F{R}_{film}^{pos}-D\left[15\right]\ast F{R}_{film}^{neg}$ $\widehat{D}+=D\left[6\right]$ $\widehat{D}+=T_K\ast {\phi }_{const}\ast \left(D\left[3\right]\ast 1/c_{e,L}-D\left[0\right]\ast 1/c_{e,0}\right)$ $ensure j_0^{neg}and j_0^{pos }are\ge minimum$ $R_{ct}^{neg}=T_K\ast cel{l}_{RF}/j_0^{neg}$ $\widehat{D}+=D\left[17\right]\ast R_{ct}^{pos}-D\left[15\right]\ast R_{ct}^{neg}$