An Indoor Unknown Radio Emitter Positioning Approach Using Improved RSSD Location Fingerprinting

Table 5

Computational complexity comparison of different algorithms.

Algorithm	Average positioning error (m)	Running time (s)
RSSD-WKNN	3.607	0.653
RSSD-PCA-COS	1.288	0.386
RSSD-PCA-PCC	1.055	0.273