Title:
ADAPTIVE ARRAY ANTENNA
Document Type and Number:
Japanese Patent JP3722003
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To satisfactorily update antenna weight in the adaptive array antenna of an MMSE system.
SOLUTION: In an averaging unit 80, received known signals X(i) are inputted repeatedly from antenna elements 10,..., 1M, a plurality of the received known signals are averaged, an averaged signal is obtained, and an averaged signal value is outputted; and an inner product unit 50 obtains the inner product signal of the averaged signal value and antenna weight. An adder 60A obtains an error between a reference signal and the inner product signal. An MMSE- computing element 70A updates antenna weight W, so that the error becomes small. Thus, the averaging unit 80 obtains the averaged signal value at every timing at a plurality of timings within one period of the averaged signal, and consequently, antenna weight is updated at every averaged signal value by the element 70A.
Inventors:
Takenori Matsue
Toshihiro Hattori
Shinji Fukui
Akira Inoue
Shigeru Kadota
Toshihiro Hattori
Shinji Fukui
Akira Inoue
Shigeru Kadota
Application Number:
JP2001088602A
Publication Date:
November 30, 2005
Filing Date:
March 26, 2001
Export Citation:
Assignee:
株式会社日本自動車部品総合研究所
株式会社デンソー
株式会社デンソー
International Classes:
H01Q3/26; (IPC1-7): H01Q3/26
Domestic Patent References:
| JP2000106505A | ||||
| JP2000188567A |
Attorney, Agent or Firm:
Yoji Ito
Takahiro Miura
Fumihiro Mizuno
Takahiro Miura
Fumihiro Mizuno