Adaptive Clustering-Based Marine Radar Sea Clutter Normalization

Algorithm 1

Clustering algorithm.

Inputs: one-dimensional sea clutter amplitude data in a certain direction.

For each bin do

  Initialize the clustering centers by and ;

  Iterations , ; denotes proportional factor;

  While and do

    For each sample compute Manhattan distance with clustering center

      ;

      If

      Then and update classification results ;

    End for

    Update clustering centers respectively:

    ,

     for divide protection, explicitly denotes the element-wise multiplication;

    ;

  End while

  Integrate classification results and clustering centers , in , , and , respectively.

End for

Outputs: classification results and clustering centers , .