<s>
In	O
signal	O
processing	O
,	O
a	O
Constant	B-Algorithm
Amplitude	I-Algorithm
Zero	I-Algorithm
AutoCorrelation	I-Algorithm
waveform	I-Algorithm
(	O
CAZAC	B-Algorithm
)	O
is	O
a	O
periodic	O
complex-valued	O
signal	O
with	O
modulus	O
one	O
and	O
out-of-phase	O
periodic	O
(	O
cyclic	O
)	O
autocorrelations	O
equal	O
to	O
zero	O
.	O
</s>
<s>
CAZAC	B-Algorithm
sequences	O
find	O
application	O
in	O
wireless	O
communication	O
systems	O
,	O
for	O
example	O
in	O
3GPP	O
Long	O
Term	O
Evolution	O
for	O
synchronization	O
of	O
mobile	O
phones	O
with	O
base	O
stations	O
.	O
</s>
<s>
Zadoff	O
–	O
Chu	O
sequences	O
are	O
well-known	O
CAZAC	B-Algorithm
sequences	O
with	O
special	O
properties	O
.	O
</s>
<s>
For	O
a	O
CAZAC	B-Algorithm
sequence	O
of	O
length	O
where	O
is	O
relatively	O
prime	O
to	O
the	O
th	O
symbol	O
is	O
given	O
by	O
:	O
</s>
<s>
The	O
power	O
spectrum	O
of	O
a	O
CAZAC	B-Algorithm
sequence	O
is	O
flat	O
.	O
</s>
