Compressed Sensing-Based Range-Doppler Processing Method for Passive Radar

Algorithm 2

Pseudocode of EOMP algorithm for range reconstruction.

Input:  surveillance signal after Doppler processing

     dictionary

     sparsity

     residual threshold

Initialize: iteration count

     residual matrix

     estimate support collection

     coefficient matrix

While   or do

     (Identification) ,where

     and are the row index and column index of the largest

     element in ;

     (Update Index Support) ;

     ,where represents

     non-zero elements in the vector;

     (Estimation) , where

     represents the pseudo-inverse of the matrix, ;

     (Update Residual) .

Output  coefficient matrix

End