MoSeFi: Duration Estimation Robust Human Motion Sensing via Commodity WiFi Device

Algorithm 1

Subcarrier screening module.

Input:: number of subcarriers; : number of CSI packets; : real

  parts of CSI ratio; : imaginary parts of CSI ratio;

Output:

1: \\coarse selection of real part

2: for to do

3:   

4: end for

5: pieces of with middle

6: \\fine selection of real part

7: discrete curvature of

8: for to do

9:   for to do

10:      

11:   end for

12: end for

13: groups of with the shorts in

14: number of subcarriers in

15: whiledo

16:   Add the group of with the shortest in remained to

17:    number of subcarriers in

18: end while

19: \\fine selection of imaginary part

20: subcarrier indexes of

21:

22: discrete curvature of

23: for to do

24:   forn=m+1 to length (ind_R-fine) do

25:      

26:   end for

27: end for

28: two pieces of I with the shortest in

29: subcarrier indexes of

30: