# Interference Suppression in EEG Dipole Source Localization through Reduced-Rank Beamforming
## 4 Discussion
Minimum values of \(t_{\text{{i}}_{\text{{i}}_{\text{{i}}_{\text{{i}}_{\text{{i}}_{\text{{i}}_{ \text{{i}}_{\text{{i}}_{\text{{i}}_{\text{{i}}_{\text{{i}}_{\text{{i}}_{ \text{{i}}_{\text{{i}}_{\text{{i}}_{\text{{i}}_{\text{{i}}_{\text{{i}}_{\text{{i}}_{ \text{{i}}_{\text{{i}}_{\text{{i}}_{\text{{i}}_{\text{{i}}_{\text{{i}}_{ \text{{i}}_{\text{{i}}_{\text{{i}}_{\text{{i}}_{\text{{i}}_{\text{{i}}_{ \text{{i}}_{\text{{i}}_{\text{{i}}_{\text{{i}}_{\text{{i}}_{\text{{i}}_{ \text{{i}}_{\text{{i}}_{\text{{i}}_{\text{{i}}_{\text{{i}}_{\text{{i}}_{ \text{{i}}_{\text{{i}}_{\text{{i}}_{\text{{i}}_{\text{{i}}_{\text{i}}_{ \text{{i}}_{\text{{i}}_{\text{{i}}_{\text{i}}_{\text{{i}}_{\text{{i}}_{ \text{\text{i}}_{\text{{i}}_{\text{{i}}_{\text{{i}}_{\text{{i}}_{\text{{i}}_{ \text{\text{i}}_{\text{{i}}_{\text{{i}}_{\text{i}}_{\text{{i}}_{\text{i}}_{ \text{\text{{i}}_{\text{i}}_{\text{{i}}_{\text{{i}}_{\text{i}}_{\text{{i}}_{ \text{\text{i}}}_{\text{{i}}_{\text{{i}}_{\text{{i}}_{\text{{i}}_{\text{i}}_{ \text{\text{i}}{\text{i}}_{\text{{i}}_{\text{{i}}_{\text{{i}}_{\text{i}}_{ \text{{i}}_{\text{{i}}_{\text{{i}}_{\text{{i}}_{\text{i}}_{\text{{i}}_{\text{{i}} \text{{i}}_{\text{{i}}_{\text{{i}}}_{\text{{i}}_{\text{{i}}}_{\text{{i}}}_{ \text{{i}}}_{\text{{i}}}_{\text{{i}}}_{\text{{i}}}_{\text{{i}}}_{\text{{i}}{ \text{i}}{\text{{}}_{\text{{i}}}_{\text{{i}}}_{\text{{i}}{\text{{}}\text{{i}}}_{ \text{{i}}}_{\text{{i}}{\text{{}}\text{{i}}}_{\text{{i}}}_{\text{{i}}{\text{{}} \text{{i}}}_{\text{{i}}{\text{{}}\text{{i}}}_{\text{{i}}{\text{{}}\text{{i}}}_{ \text{{i}}{\text{{}}\text{{i}}}_{\text{{i}}{\text{{}}\text{{i}}}_{\text{{i}}{ \text{{}}\text{{i}}}_{\text{{i}}{\text{{}}\text{{i}}}_{\text{{i}}{\text{{}}\text{{i}} {\text{{}}\text{{i}}}_{\text{{i}}{\text{{}}\text{{i}}}_{\text{{i}}{\text{{}} \text{{i}}}_{\text{{i}}{\text{{}}\text{{i}}}_{\text{{i}}{\text{{}}\text{{i}}}_{ \text{{i}}{\text{{}}\text{{i}}}_{\text{{i}}{\text{{}}\text{{i}}}_{\text{{i}}{ \text{{}}\text{{i}}}_{\text{{i}}{\text{{}}\text{{i}}}_{\text{{i}}{\text{{}} \text{{i}}{\text{{}}\text{{i}}}_{\text{{i}}{\text{{}}\text{{i}}}_{\text{{i}}{ \text{{}}\text{{i}}{\text{{}}\text{{i}}}_{\text{{i}}{\text{{}}\text{{i}}}_{\text{{i}} {\text{{}}\text{{i}}{\text{{}}\text{{}}\text{{i}}}_{\text{{i}}{\text{{}}\text{{}} \text{{i}}{\text{{}}\text{{}}\text{{i}}{\text{{}}\text{{}}\text{{i}}{\text{{}} \text{{}}\text{{i}}{\text{{}}\text{{}}\text{{}}\text{{i}}{\text{{}}\text{{}} \text{{i}}{\text{{}}\text{{}}\text{{}}\text{{i}}{\text{{}}\text{{}}\text{{i}}{ \text{{}}\text{{}}\text{{}}\text{{i}}{\text{{}}\text{{}}\text{{}}\text{{i}}{ \text{{}}\text{{}}\text{{}}\text{{i}}{\text{{}}\text{{}}\text{{}}\text{{}} \text{{i}}{\text{{}}\text{{}}\text{{}}\text{{}}\text{{{i}}}{\text{{}}\text{{}} \text{{i}}{\text{{}}\text{{}}\text{{}}\text{{i}}{\text{{}}\text{{}}\text{{}} \text{{i}}{\text{{}}\text{{}}\text{{{}}\text{{i}}{\text{{}}\text{{}}\text{{}} \text{{{}}\text{{i}}{\text{{}}\text{{}}\text{{{}}\text{{}}\text{{{i}}}{\text{{} \text{{}}\text{{{}}\text{{}}\text{{{}}\text{{}\text{{{}}\text{{}}\text{{}}\text{{{} \text{{}}\text{{{}\text{{}}\text{{{}}\text{{{}}\text{{{}}\text{{{}}\text{{{}} \text{{{}}\text{{{}}\text{{{}}\text{{{}}\text{{{}}\text{{{}}\text{{}} \text{{{}}\text{{{}}\text{{{}}\text{{{}}\text{{{}}\text{{}}\text{{{}} \text{{{}}\text{{{}}\text{{{}}}\text{{{}}\text{{{}}\text{{{}}}\text{{{}} \text{{{}}\text{{{}}\text{{{}}\text{{{}}}\text{{{}}\text{{{}}}\text{{{}} \text{{{}}\text{{{{}}\text{{{}}}\text{{{}}\text{{{}}}\text{{{}}\text{{{}} \text{{{}}\text{{{}}}\text{{{In beamforming applications, the available training data is insufficient to obtain a full-rank estimate of the interference-and-noise covariance matrix mainly because the interference is typically of low rank, therefore minimum-variance filtering methods in low-rank interference have attracted considerable attention [16]. In [8], a reduced-rank version of \(t_{\text{total}}\) was presented, in which spatial resolution compared with its full-rank version was improved.