Table 1.

Clutter removal algorithms for vital sign detection.

Clutter & Noise Removal Algorithms	Research Articles
Loop Back Filter	[7,9,10,25,27,28,29,30,38,54,55,56]
Singular Value Decomposition (SVD)	[57]
Kalman Filter	[58]
Single Delay MTI Filter	[42]
Averaging Method	[4,17,18,52,59,60]
Pseudo-Bi-Dimensional Ensemble Empirical Mode Decomposition (PBDEEMD)	[61]