Title:
ピークファクタ低減装置およびベースバンド信号処理装置
Document Type and Number:
Japanese Patent JP4823013
Kind Code:
B2
Abstract:
A peak factor reduction unit that never allow peak factor reproduction even when interpolation is done in a succeeding stage. The unit detects a local maximum value of amplitude components from an input complex signal and supplies a complex signal that passes a band limiting baseband filter and an interpolation filter to a correction signal generation unit for generating a correction signal used for peak factor reduction and reduces a peak factor of the input complex signal with use of the correction signal generated from an interpolated complex signal.
Inventors:
Horiyuki
Hideaki Arai
Shohei Murakami
Hideaki Arai
Shohei Murakami
Application Number:
JP2006283545A
Publication Date:
November 24, 2011
Filing Date:
October 18, 2006
Export Citation:
Assignee:
株式会社日立製作所
International Classes:
H04J11/00; H04B1/69; H04J1/00; H04J13/00
Domestic Patent References:
| JP2004179813A | ||||
| JP2003124824A | ||||
| JP2005020505A | ||||
| JP2003510898A |
Foreign References:
| WO2005074131A1 | ||||
| WO2007036978A1 |
Attorney, Agent or Firm:
Polaire Patent Business Corporation