| 摘要 |
PROBLEM TO BE SOLVED: To provide a coupling loop interference canceler stably operating even in a very poor receiving state or even under identical channel interference. SOLUTION: A threshold processing means 19 of a coupling loop interference path estimating unit 10 removes a cancel residual larger than a preset threshold value from among cancel residuals of coupling loop interference calculated from propagation path responses of signals after cancelling the coupling loop interference. Thus, even if a cancel residual calculating means 14 performs division using a propagation path response that is zero or an extremely small numerical value and a resultant cancel residual becomes instable or a great value, the instable or great value cancel residual can be removed in the threshold processing means 19. Thus, the coupling loop interference path estimating unit 10 accurately determines a filter coefficient. COPYRIGHT: (C)2008,JPO&INPIT |
