| 摘要 |
PROBLEM TO BE SOLVED: To precisely cancel a delayed wave in a delayed wave canceler. SOLUTION: A filter tap coefficient value calculating part 14 calculates a filter tap coefficient value (h<SB>i</SB>(n)) of a complex transversal filter generating a delayed wave cancel signal based on an addition value obtained by adding a value obtained by multiplying a complex impulse response value (e<SB>i</SB>(n)) of a reception signal by an update coefficient (-μ(n)) with a conventional filter tap coefficient value (h<SB>i-1</SB>(n)). The calculation part uses the update coefficient (-μ(n)) at every filter tap coefficient value. COPYRIGHT: (C)2005,JPO&NCIPI
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