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Table 1. Correlation Sum and weight Distributions of m -sequences of period 2 r
1
(a) n =2 t + 1 (an odd integer)
Subset
No. of
Trace
w 0
w 1
Sequences
Number
2 r 1 1
B
1
1
0
0
2 t
1+ ω 2 t
2 t 1 (2 t +1)
2 n 2 +2 t 1 1 2 n 2 +2 t 1
P
ξ
Q − 2 t
1 − ω 2 t
2 t 1 (2 t
2 n 2 2 t 1 1 2 n 2 2 t 1
1)
ξ
¯
2 t
1 − ω 2 t
2 t 1 (2 t +1)
2 n 2 +2 t 1 1 2 n 2 2 t 1
R
ξ
¯
2 t
1+ ω 2 t
ξ 2 n 2 2 t 1 1 2 n 2 +2 t 1
(b) n =2 t (an even integer)
2 t 1 (2 t
S
1)
2 n 1 1
B
1
1
0
0
2 t
2 t 1 (2 t 1 +1)
2 n 2 +2 t 1 1
2 n 2
P
1
ξ
2 t
2 t 1 (2 t 1 1)
2 n 2 2 t 1 1
2 n 2
Q
1
ξ
¯
1+ ω 2 t
2 n 2
2 n 2 1
2 n 2 +2 t 1
R
ξ
¯
1 − ω 2 t
2 n 2
2 n 2 1
2 n 2 2 t 1
S
ξ
Table 2. Correlation Sum and Weight Distributions of Family C (( γ =3))
(a) n =2 t + 1 (an odd integer) ; Period = 2(2 n
1)
Subset
No. of
Constituent
w 0
w 1
Sequences
class
¯
2(2 t
2 t 1 (2 t +1)
η ∈P ; ηγ ∈R 2 2 t +2 t
2 2 t
P
1)
2
¯
Q − 2(2 t +1) 2 t 1 (2 t
η ∈Q ; ηγ ∈S 2 2 t
2 t
2 2 t
1)
2
¯
2 n
B
2
1
η ∈< 2 >
2
0
(b) n =2 t (an even integer); Period = 2(2 n
1)
¯
2(2 t
1) 2 t 2 (2 t 1 +1) η ∈P ; ηγ ∈P 2 n 1 +2 t
2 2 n 1
P
¯
Q − 2(2 t +1)2 t 2 (2 t 1 1) η ∈Q ; ηγ ∈Q 2 n 1 2 t
2 2 n 1
¯
2 2 t 2
2 n 1 2
2 n 1
R
2
η ∈R ; ηγ ∈S
¯
2 n
B
2
η ∈< 2 >
2
1
0
3 The Partial Correlation and Its First Moment
Let s i =( s i (0) ,...,s i (2 n
1)) be a sequence from Family A ,thus s i ( t )= T ( γ i β t )
t
2 n
2 , and where γ i
Γ ν for i =1 ,..., 2 n +1 . Hence N =2 n
for 0
1
and M =2 n +1here.
Definition 2. The periodic partial correlation function of s i with s j at shift τ
and offset k with correlation length L
2 n
1 is given by
k + L
1
ω s i ( t⊕τ ) −s j ( t ) ,
2 n +1 ,
P i,j ( τ, k, L )=
1
i
j
t = k
denotes addition modulo 2 n
2 n
where
1 , and 0
τ
2 .
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