PULSE DATA GENERATION METHOD, SHAPE DATA GENERATION METHOD, PULSE DATA GENERATOR, SHAPE DATA GENERATOR, AND TRANSMISSION PULSE SIGNAL GENERATOR

摘要

PROBLEM TO BE SOLVED: To generate a transmission signal reduced sufficiently in a side lobe and having an ideal frequency component.;SOLUTION: A waveform data of an ideal frequency zone capable of cutting out a frequency component serving as a main component and capable of bringing unnecessary side lobe into a zero condition is generated by multiplying a waveform data of the transmission signal in a frequency zone with a window function data, and a waveform data of a time zone generated by Fourier-transforming the waveform data therein is stored as a transmission data in a ROM 21. The transmission data is read from the ROM 21 in a transmission period, and is converted into an analog signal by a D/A converter 22 to obtain the transmission signal with the side lobe sufficiently controlled.;COPYRIGHT: (C)2006,JPO&NCIPI