<s>
The	O
Composite	B-Device
Binary	I-Device
Offset	I-Device
Carrier	I-Device
(	O
CBOC	O
)	O
modulation	O
is	O
a	O
particular	O
implementation	O
of	O
the	O
Multiplexed	B-Device
Binary	I-Device
Offset	I-Device
Carrier	I-Device
modulation	O
and	O
it	O
is	O
nowadays	O
used	O
by	O
Galileo	O
satellite	O
signals	O
.	O
</s>
<s>
It	O
is	O
formed	O
by	O
addition	O
or	O
subtraction	O
of	O
two	O
weighted	B-Algorithm
sine	O
binary	B-Device
offset	I-Device
carrier	I-Device
modulations	I-Device
.	O
</s>
<s>
It	O
has	O
been	O
introduced	O
as	O
an	O
MBOC	B-Device
variant	O
,	O
following	O
an	O
EU-US	O
Agreement	O
in	O
2004	O
on	O
the	O
Promotion	O
,	O
Provision	O
and	O
use	O
of	O
Galileo	O
and	O
GPS	O
Satellite-Based	O
Navigation	O
Systems	O
and	O
Related	O
Applications	O
.	O
</s>
