<s>
AFSR	B-Algorithm
also	O
stands	O
for	O
the	O
Argonne	O
Fast	O
Source	O
Reactor	O
--	O
see	O
list	O
of	O
nuclear	O
reactors	O
.	O
</s>
<s>
AFSR	B-Algorithm
was	O
also	O
the	O
abbreviation	O
of	O
the	O
Armed	O
Forces	O
of	O
South	O
Russia	O
.	O
</s>
<s>
An	O
analog	B-Algorithm
feedback	I-Algorithm
shift	I-Algorithm
register	I-Algorithm
(	O
AFSR	B-Algorithm
)	O
is	O
a	O
generalization	O
of	O
the	O
(	O
binary	O
,	O
digital	O
)	O
linear-feedback	B-Architecture
shift	I-Architecture
register	I-Architecture
(	O
LFSR	B-Architecture
)	O
.	O
</s>
<s>
While	O
binary	O
LFSRs	B-Architecture
require	O
less	O
power	O
to	O
generate	O
spread	B-Architecture
spectrum	I-Architecture
signals	O
than	O
AFSRs	B-Algorithm
,	O
AFSR	B-Algorithm
receivers	O
require	O
less	O
power	O
(	O
in	O
theory	O
)	O
to	O
synchronize	O
to	O
those	O
signals	O
than	O
binary	O
LFSR	B-Architecture
receivers	O
.	O
</s>
<s>
As	O
of	O
2005	O
,	O
AFSRs	B-Algorithm
are	O
still	O
in	O
research	O
.	O
</s>
<s>
AFSR	B-Algorithm
techniques	O
could	O
make	O
spread-spectrum	B-Architecture
receivers	O
(	O
such	O
as	O
GPS	O
receivers	O
and	O
cell	O
phones	O
and	O
Wi-Fi	O
receivers	O
and	O
RFIDs	B-Application
)	O
cost	O
less	O
and	O
have	O
longer	O
battery	O
lifetimes	O
.	O
</s>
