L2 norm provides better results with moderate
and low noise levels although it requires high sampling
frequency, high digitizing resolution, and higher
computing time to achieve its full performance
L1 needs both low cost
hardware and lower computing time using conventional
architectures. Also, results show that 6-8 b of resolution
are enough for most applications
while L1 and L2 norms
L2 method requires a high resolution (10-12 b)
from the A/D converter to reach maximum accuracy (Fig.
5). In contrast, correlation