Title:
【発明の名称】ディジタル無線受信器の同期検波と抑止用の適合フィルタを用いたコヒーレント信号の発生
Document Type and Number:
Japanese Patent JP3397792
Kind Code:
B2
Abstract:
A digital radio receiver generates coherent signals for synchronous detection without use of a phase-locked loop by employing an adaptive notch filter to cancel the desired signal. The cancelling signal is employed as the coherent signal for synchronous detection. The invention obtains faster locking to the desired signal, a wider capture range, and more efficient software coding in a digital signal processing receiver.
Inventors:
White Car, John Elliott
Application Number:
JP51390394A
Publication Date:
April 21, 2003
Filing Date:
November 15, 1993
Export Citation:
Assignee:
Ford Motor Company
International Classes:
H03D5/00; H03D1/22; H04B1/16; H04B1/26; H04H20/48; H04H1/00; (IPC1-7): H04H5/00; H04B1/26
Domestic Patent References:
| JP571213A | ||||
| JP6370628A |
Other References:
ＢＥＲＮＡＲＤ ＷＩＤＲＯＷ，Ａｄａｐｔｉｖｅ Ｎｏｉｓｅ Ｃａｎｃｅｌｌｉｎｇ，ＰＲＯＣＥＥＤＩＮＧＳ ＯＦ ＴＨＥ ＩＥＥＥ，米国，ＩＥＥＥ，１９７５年１２月，ＶＯＬ．６３／Ｎｏ．１２，１６９２−１７１５
Attorney, Agent or Firm:
Akira Asamura (3 outside)