SIGNAL CONVERSION METHOD, SIGNAL TRANSMISSION METHOD, SIGNAL CONVERSION DEVICE AND TRANSMITTER

摘要

PROBLEM TO BE SOLVED: To improve an ACLR.SOLUTION: A signal conversion method includes converting an input signal to a 1-bit pulse train representing an analog signal. As to the 1-bit pulse train, a pulse rise waveform fhas a first distortion component relative to an ideal pulse rise waveform, and a pulse fall waveform fhas a second distortion component relative to an ideal pulse fall waveform. The first distortion component and the second distortion component are substantially axisymmetric about a time axis.