Title:
マルチパスひずみ除去フィルタ
Document Type and Number:
Japanese Patent JP4246562
Kind Code:
B2
Abstract:
An adaptive filter for an FM receiver comprises a digital filter (110), an error detection section (150,180) for detecting an error err (t-n) between the output amplitude Yenv (t-n) of the digital filter and a reference value Yth, and a coefficient updating section (160) for updating tap coefficients Km (t) so as to minimize the detected error. Further, a delay circuit (190) is provided in an output stage of the digital filter so as to reduce an operation load. Thus, the adaptive filter can improve an operation accuracy of the digital filter, thereby eliminating multipath distortion with reliability.
Inventors:
Yuji Yamamoto
Toshiaki Hisatomi
Toshiaki Hisatomi
Application Number:
JP2003207868A
Publication Date:
April 02, 2009
Filing Date:
August 19, 2003
Export Citation:
Assignee:
Pioneer Corporation
International Classes:
H03H17/02; H04B1/10; H03H17/06; H03H21/00; H04B1/26
Domestic Patent References:
| JP7336250A | ||||
| JP7221676A | ||||
| JP5191213A | ||||
| JP5244026A | ||||
| JP11004141A | ||||
| JP3284014A |
Attorney, Agent or Firm:
Nobujun Kobashi
Ritsumasa Kobashi
Ritsumasa Kobashi