OFDM SYSTEM USING SAW CHIRP-Z TRANSFORM

摘要

PROBLEM TO BE SOLVED: To achieve SAW chirp-Z transform for an OFDM system which can be used for a mobile object communication field.;SOLUTION: The OFDM system composed of a SAW chirp-Z transformer wherein electric circuits for generating chirp signals are connected before and after a SAW chirp filter having a down-chirp characteristic uses SAW chirp-Z transform in which the delay time of the SAW chirp filter has a zero temperature characteristic. This invention is the OFDM system using the SAW chirp-Z transform which is composed of a SAW dispersion type delay line wherein the delay time has the zero temperature characteristic to perform convolution by using a surface acoustic wave which can be applied to signal processing in the mobile object communication field, and the industrial value of the OFDM system is extremely high.;COPYRIGHT: (C)2010,JPO&INPIT