PREAMBLE SIGNAL GENERATION DEVICE, PREAMBLE SIGNAL GENERATION METHOD, PREAMBLE SIGNAL GENERATION PROGRAM AND RECORDING MEDIUM WITH PREAMBLE SIGNAL RECORDED

摘要

PROBLEM TO BE SOLVED: To provide a preamble signal generation device, a preamble signal generation method, a preamble signal generation program and a recording medium with preamble signal recorded obtaining the preamble signal which is approximated to an optimal value by searching for a short amount of time.;SOLUTION: The preamble signal generation device 1 generates the preamble signal by orthogonal frequency division multiplex modulation. The preamble signal generation device 1 includes: amplitude linear search means 41 for searching for an amplitude value by a search using a linear search method; amplitude PSO means 42 for searching by a particle group optimizing method with the search amplitude value that is searched by the amplitude linear search means 41 as a starting point; phase linear search means 51 for searching for a phase value by the linear search method based on the amplitude value searched by the amplitude PSO means 42; and amplitude PSO means 52 for searching by the particle group optimization method with the search phase value searched by the phase linear search means 51 as a starting point.;COPYRIGHT: (C)2012,JPO&INPIT