what about line 5-11 MATLAB code
5: Compute CRLB(ˆ)i and CRLB(fˆD)i
6: Select the activated radar subcarrier having the minimum
¯ fn, with indices {nmin,mmin}
7: Select the unactivated radar subcarrier having the maximum
¯ fn on the maximum ¯tm time instant, with
indices {nmax,mmax}
8: Set Xr,nmax,mmax = Xr,nmin,mmin
9: Set Xr,nmin,mmin = 0
10: Ract,i+1 = Ract,i\{nmin,mmin}
11: Ract,new,i+1 = Ract,new,i ∪ {nmax,mmax}