<s>
FM-UWB	B-Device
is	O
a	O
modulation	O
scheme	O
using	O
double	O
FM	B-Application
:	O
low-modulation	O
index	O
digital	O
FSK	O
followed	O
by	O
high-modulation	O
index	O
analog	B-Application
FM	I-Application
to	O
create	O
a	O
constant	O
envelope	O
UWB	O
signal	O
.	O
</s>
<s>
FM-UWB	B-Device
is	O
an	O
optional	O
mode	O
in	O
the	O
IEEE802.15.6	O
Body	O
Area	O
Network	O
(	O
BAN	O
)	O
standard	O
.	O
</s>
