The ternary diffusion code generator which possesses zero correlation intervals and the ternary diffusion

摘要

PROBLEM TO BE SOLVED: To provide a device and method for generating a three-dimensional spread code having a zero correlation period and a computer-readable recording medium for recording a program to realize the method.;SOLUTION: The three-dimensional spread code generating method applies to a three-dimensional code generator with a zero correlation period includes a first step of a three-dimensional zero correlation period preferred fair code to maintain a zero correlation characteristic of an extended code of (0.75N+1) chips resulting from extending a code period of a code whose period is N chip (N is a natural number) and a second step of applying chip shift to the generated three-dimensional zero correlation period preferred fair code to generate many three-dimensional zero correlation period preferred fair code sets with a zero correlation characteristic of (0.75N+1) chips or below.;COPYRIGHT: (C)2003,JPO