Radar wavelength	$\lambda$
Radial velocity	$v_r$
Range resolution	${\delta }_r$
Received signal by the array element (p,q)	$S_R^{(p,q)}$
Received signal after motion compensation	$S_{R,C}$
Reference signal	$S_{ref}$
Reference vector	$\tilde{\mathbf{G}}$
Rotation matrix	$M_{\xi x}$
Scatter position	$x\left(t\right)$
Segmentation controlling function	${\alpha }_{1,b}$
Signal vector	$\tilde{\mathbf{S}}$
Size of the illuminated swath along the range dimension	$D_{y2}$
Synthetic aperture	L
Speed of light in a vacuum	c
Signal bandwidth	B
Target reflectivity function	$\sigma \left(\mathbf{y}\right)$
Target rotational motion velocity vector	${\mathsf{\Omega }}_T$
Target signal return	$S_t(f,t)$
Unit vector along the radar Line of Sight	${\mathbf{i}}_{LoS}\left(t\right)$
Vector of target-free training data	$\tilde{\mathbf{Z}}$
Weight vector	$\tilde{\mathbf{W}}$
Segmentation actuating function	${\gamma }_1$
Training data selection controlling function	${\alpha }_2$
Bayesian approach controlling function	${\alpha }_3$
Training data selection actuating function	${\gamma }_2$
Clutter suppression controlling function	${\alpha }_4$
Clutter suppression actuating function	${\gamma }_3$
Predefined clutter covariance matrix	$M_c$
Doppler Null	$DN$
Doppler Null Bandwidth	$DNB$
Frequency spectrum sensing	$F_{SS}$