Table 2.

Compare the MSSREs of different models when solving the LR problem.

Model	MSSRE with NF	MSSRE with CN	MSSRE with PN	MSSRE with RN
OZND	$3.60\times {10}^{-3}$	$1.08\times {10}^2$	$5.11\times {10}^1$	$1.35\times {10}^2$
NZND	$7.54\times {10}^{-4}$	$5.15\times {10}^0$	$3.49\times {10}^0$	$5.37\times {10}^0$
VPZND	$7.52\times {10}^{-4}$	$1.66\times {10}^{-2}$	$1.05\times {10}^{-2}$	$2.10\times {10}^{-2}$
NTZND	$2.93\times {10}^{-2}$	$8.50\times {10}^{-1}$	$1.42\times {10}^0$	$9.51\times {10}^{-1}$
DPZND	Divergent	Divergent	Divergent	Divergent
DVPEZND	Divergent	Divergent	Divergent	Divergent
AREND	$\mathbf{4.89}\times {\mathbf{10}}^{-\mathbf{7}}$	$\mathbf{6.60}\times {\mathbf{10}}^{-\mathbf{4}}$	$\mathbf{2.20}\times {\mathbf{10}}^{-\mathbf{3}}$	$\mathbf{6.30}\times {\mathbf{10}}^{-\mathbf{3}}$

NF, CN, PN, and RN signify the noises free, constant noises, period noises, and random noises, respectively. The bold font denotes the best result in the corresponding item