We investigate the crosscorrelation function Cd(t)=/spl Sigma//sub i=1/(p/sup n-1/) /spl zeta/(a/sup i-t/-a/sup di/), where /spl zeta/ is a complex primitive pth root of unity, (a/sub i/)(i/spl isin/N/sub 0/) is a maximal linear shift-register sequence of length p/sup n/-1, and p is an odd prime. For p=3, n odd, and d=p/sup n/+1/4+p/sup n/-1/2 we show that 2/spl middot//spl radic/p/sup n/ is an upper bound for the absolute value of 1+C/sub d/(t). For any odd prime p and p/sup k/+1, where n/gcd/(n,k) is not divisible by 4 we determine the maximum absolute value of C/sub d/(t) and the number of values of C/sub d/(t).
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机译:我们研究互相关函数Cd(t)= / spl Sigma // sub i = 1 /(p / sup n-1 /)/ spl zeta /(a / sup it / -a / sup di /),其中/ spl zeta /是单位的复数原始pth根,(a / sub i /)(i / spl isin / N / sub 0 /)是长度为p / sup n / -1的最大线性移位寄存器序列,并且p是一个奇怪的素数。对于p = 3,n奇数和d = p / sup n / + 1/4 + p / sup n / -1 / 2,我们表明2 / spl middot // spl radic / p / sup n /是上限值限制为1 + C / sub d /(t)的绝对值。对于任何奇数素数p和p / sup k / + 1,其中n / gcd /(n,k)不能被4整除,我们确定C / sub d /(t)的最大绝对值和C / sub d /(t)。
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